AIMS Power 12V Lithium Iron Phosphate (LiFePO4) 50 Ah, 100 Ah, and 200 Ah Batteries
AIMS Power 12V Lithium Batteries are intended for deep cycle applications that require lightweight batteries that tolerate relatively strong charging/discharging currents and a very large number of charging/discharging cycles, like off-the-grid applications, RV house batteries, trolling motor batteries, electric vehicle batteries, and similar.
Despite being able to withstand relatively strong currents for deep cycle lithium batteries, AIMS Power 12V lithium batteries should NOT be used as cranking/starting batteries.
Published: November 5, 2020.
On This Page:
- AIMS Power 12V Lithium Batteries Features and Specifications
- AIMS Power LFP12V50A and AIMS Power LFP12V50AB Lithium-Ion Batteries
- AIMS Power LFP12V50AB Battery vs. BCI Group 22NF AGM SLA Batteries
- AIMS Power LFP12V100A and AIMS Power LFP12V100AB Lithium-Ion Batteries
- AIMS LFP12V100AB Lithium Battery vs. Odyssey 31M-PC2150 AGM Battery
- AIMS Power LFP12V200A and AIMS Power LFP12V200AB Lithium-Ion Batteries
- AIMS Power LFP12V200AB Lithium Battery vs VMAXTANKS XTR4D-200 AGM Battery
- AIMS Power Lithium-Ion Batteries - Parallel and Series Connections
- How to Charge AIMS Power Lithium Batteries
- AIMS Power Lithium Batteries as Trolling Motor Batteries
- AIMS Power Lithium Batteries as Sump Pump Batteries/UPS Batteries
- AIMS Power Lithium Batteries as Power Inverter Batteries/RV House Batteries
AIMS Power 12V Lithium Batteries Features and Specifications
AIMS Power lithium batteries are equipped with the Battery Management Systems (BMS) that protect the batteries from unwanted events like overcharge, over-discharge, short-circuit, over-current, polarity reverse protection, and temperature protection.
At the moment of writing this article, AIMS Power was offering LFP12V50AB, LFP12V100AB, and LFP12V200AB Lithium Iron Phosphate (LiFePO4) batteries, although somewhat older models LFP12V50A, LFP12V100A, and LFP12V200A (note the missing 'B' letter at the end of the labels) are still present at the most online and hardware stores.
The following comparison chart lists the most important information about these batteries:
(0.5C, 77°F, 25°C)
|50 Ah||100 Ah||200 Ah|
(0.5C, 77°F, 25°C)
|47.5 Ah||95 Ah||190 Ah|
(80% DoD, 1C, 77°F, 25°C)
|Charging Voltage||14.4 - 14.6V||14.4 - 14.6V||14.4 - 14.6V|
|Stored Energy||~600 Wh||~1200 Wh||~2400 Wh|
|Maximum Continuous Charge Current||50 Amps||100 Amps||160 Amps|
|Maximum Continuous Discharge Current||50 Amps||100 Amps||200 Amps|
|Maximum 10s Discharge Current||100 Amps||200 Amps||350 Amps|
|<3% per month||<3% per month||<3% per month|
|Battery Terminal||5/16" (8 mm)||5/16" (8 mm)||5/16" (8 mm)|
A Model / AB Model
(L x W x H)
9 x 5.4 x 8.2 inches
9 x 5.5 x 9 inches
13 x 6.7 x 8.3 inches
12.75 x 6.5 x 8.75 inches
20.7 x 10.6 x 8.7 inches
20.5 x 9.0 x 9.25 inches
A Model / AB Model
|BCI Group Size||~22NF||31||4D|
AIMS LFP12V50A - No
AIMS LFP12V50AB - Yes
AIMS LFP12V100A - No
AIMS LFP12V100AB - Yes
AIMS LFP12V200A - No
AIMS LFP12V200AB - Yes
|Warranty||10-Year Limited||10-Year Limited||10-Year Limited|
|Amazon Link||AIMS Power LFP12V50||AIMS Power LFP12V100||AIMS Power LFP12V200|
Note: Amazon affiliate links open in the new windows, feel free to check them for the most up-to-date offers and prices.
As one can see, 'AB' and 'A' models slightly differ in size and weight, with the 'AB' batteries being somewhat lighter and also feature Bluetooth connectivity - AIMS Power offer a smartphone app that enables the user to monitor the batteries remotely, including Battery Voltage, Battery Current (Amps), Battery Charge Status(SOC), Charge/Discharge State, Battery Cycles, Battery Temperature, Remaining Capacity (RMC), Design Capacity (DCAP), Full Charge Capacity (FCC), and Average Time: Empty/Full.
But, 'old' and 'new' models are practically the same regarding the nominal capacity, voltage, charging and discharging currents, and other electrical features/specifications.
The easiest way of differentiating these batteries is that 'older' models feature light-blue ribbon/stripe with dark blue letters 'DEEP CYCLE 12V 50Ahr', 'DEEP CYCLE 12V 100Ahr' and 'DEEP CYCLE 12V 200Ahr', while 'newer' models don't have such stripe/ribbon.
Note: before ordering these or any other batteries, always check the exact model that you are ordering, and if unsure regarding connecting/using the batteries, let the certified professional do the job for you - better safe than sorry, especially when batteries that pack a lot of energy are involved.
AIMS Power LFP12V50A and AIMS Power LFP12V50AB Lithium-Ion Batteries
AIMS Power LFP12V50A and AIMS Power LFP12V50AB lithium-ion batteries feature a nominal capacity of 50 Ah, with the minimum capacity of 47.5 Ah - unlike lead-acid batteries, these values are given for 2h discharge, meaning that the RC (Reserve Capacity) of these batteries is very near full 2 hours (120 minutes), which is excellent value for 17.75 pounds (8.04 kg)/15.5 pounds (7.02 kg) heavy battery.
AIMS LFP12V50A and AIMS LFP12V50AB batteries are able to withstand 4000+ charging/discharging cycles down to 80% DoD with 50Amps current (1C) at the temperature of 77°F (25°C) - even the best AGM/Gel-Cell batteries can't withstand more than 350-400 cycles down to 80% DoD and should not be recharged with 1C currents, since such charging currents would quickly degrade lead-acid battery performances.
Maximum continuous charging/discharging currents for AIMS LFP12V50A and AIMS LFP12V50AB batteries is 50 Amps, but if required, they can provide 100 Amps for 10 seconds, which is very important when the battery is being used for powering electric motors that require more starting Amps.
AIMS LFP12V50A and AIMS LFP12V50AB can be connected in series in order to provide battery packs with voltages up to 48 volts (up to 4 batteries in series). Also, it can be connected in parallel to provide battery packs with larger capacities.
But, since AIMS Power manufactures larger lithium-ion batteries, instead of connecting AIMS LFP12V50A and AIMS LFP12V50AB batteries in parallel, it is recommended to go for larger batteries.
Note: although we couldn't find if mixing of AIMS LFP12V50A and AIMS LFP12V50AB models is allowed by the manufacturer when connecting in parallel/series, we would strongly advise NOT to mix them - go either with AIMS LFP12V50A or AIMS LFP12V50AB batteries, but not both types in the same battery pack. The same warning/recommendation goes for 100Ah and 200Ah batteries.
AIMS Power LFP12V50AB Battery vs. BCI Group 22NF AGM SLA Batteries
AIMS Power LFP12V50A and LFP12V50AB batteries feature physical dimensions very close to the BCI Group 22NF (L x W x H):
- AIMS Power LFP12V50A: 9 x 5.4 x 8.2 inches (~229 x 137 x 209 mm),
- AIMS Power LFP12V50AB: 9 x 5.5 x 9 inches (~229 x 140 x 229 mm),
- BCI Group 22NF: 9 7/16 x 5 1/2 x 8 15/16 inches (~9.44 x 5.5 x 8.94 inches, ~240 x 140 x 227 mm),
- Mighty Max ML55-12: 9.02 x 5.43 x 8.19 (9.13 including terminals) inches (~229 x 138 x 208/232 mm).
Mighty Max ML55-12 is a very popular, general-purpose, deep-cycle, Absorbent Glass Mat (AGM) Sealed Lead Acid (SLA) battery, with a nominal voltage of 12V and a nominal capacity of 55 Ah.
- LFP12V50AB battery is lighter: 15.5 vs 37 pounds,
- LFP12V50AB battery can withstand a larger number of charging cycles: ~4000 vs 180 cycles down to 100% DoD, 4800+ vs 350 cycles down to 50% DoD,
- LFP12V50AB battery's maximum allowed charge current allows the battery to be recharged much faster: 50 Amps vs 16.5 Amps,
- Mighty Max ML55-12 may provide 550 Amps for 5 seconds, while LFP12V50AB may provide 100 Amps for 10 seconds,
- LFP12V50AB features a longer warranty: 10 years vs 1 year,
- LFP12V50AB features Bluetooth connectivity,
- 1 hour capacity of the FLP12V50Ab is at least 45 Ah (battery dependent), while Mighty Max ML55-12 features 1h capacity of ~35.2 Ah (discharged down to 9.6 volts),
- LFP12V50AB is more sensitive to charging and requires a dedicated lithium battery charge, while Mighty Max ML55-12 can be recharged with various lead-acid battery chargers, although a smart AGM battery charger is highly recommended,
- LFP12V50AB features a BMS system that protects the battery from unwanted events, while Mighty Max ML55-12 can be, for example, short-circuited,
- LFP12V50AB costs more, at least initially.
When compared with the Mighty Max ML55-12 battery, AIMS Power LFP12V50A/LFP12V50AB obviously offer many benefits, except the maximum pulse current. Although it initially costs more, in the long run, AIMS Power LFP12V50A/LFP12V50AB battery saves money - depending on the DoD%, AIMS Power LFP12V50A/LFP12V50AB can withstand 14-20+ more charging/discharging cycles, while weighing less than half of the Mighty Max ML55-12 or any similar 22NF battery.
AIMS Power LFP12V100A and AIMS Power LFP12V100AB Lithium-Ion Batteries
AIMS LFP12V100A and AIMS LFP12V100AB lithium batteries feature a nominal voltage of 12.8 volts, a nominal capacity of 100 Ah, and a minimum capacity of 95 Ah.
Maximum recommended charging/discharging currents are 100Ah, allowing the batteries to be recharged in ~1h when being discharged down to 100% DoD.
Maximum 10s discharge current is 200 Amps, although there are sources claiming slightly higher 10s current and even 1s maximum discharge current - we couldn't verify those data on the official AIMS Power website, so we didn't include it (at least not yet).
When compared with other BCI Group 31 Batteries, AIMS Power LFP12V100A and AIMS Power LFP12V100AB batteries offer a larger number of charging/discharging cycles (practically by factor 10!), excellent deep discharge features, they can be recharged quickly, they are much lighter (at least 2x), but, they also cost more than group 31 AGM/Gel-Cell batteries.
AIMS Power LFP12V100A and AIMS Power LFP12V100AB batteries can be connected in series and parallel, depending on the exact requirement - before connecting them in series/parallel, be sure to thoroughly read the manual since AIMS Power provides very detailed information on how to connect all three battery types (50Ah, 100Ah, and 200Ah batteries).
AIMS LFP12V100AB Lithium Battery vs. Odyssey 31M-PC2150 AGM Battery
Odyssey 31M-PC2150 AGM 12V battery is a 'marine' version of rather popular Odyssey 31-PC2150 battery, differing practically only in the battery terminals - 'marine' version (31M) features dual battery terminals, while automotive/industrial version features standard battery terminals OR 'marine' battery terminals (depends on the submodel).
Also, Odyssey 31R-PC2150 is very similar to the 31-PC2150 battery, except that it has terminals reversed.
AIMS LFP12V100A, LFP12V100AB, and Odyssey 31M-PC2150 battery belong to the BCI Group 31 and feature physical dimensions of (L x W x H):
- AIMS LFP12V100A: 13 x 6.7 x 8.3 inches (~330 x 170 x 211 mm), 30.2 pounds,
- AIMS FLP12V100AB: 12.75 x 6.5 x 8.75 inches (~324 x 165 x 222 mm), 27.5 pounds,
- BCI Group 31: 13 x 6 13/16 x 9 7/16 inches (~13 x 6.8 x 9.44 inches, 330 x 173 x 240 mm),
- Odyssey 31M-PC2150: 13 x 6.8 x 9.41 inches (~330 x 173 x 239 mm), 77.8 pounds.
Odyssey 31M-PC2150 battery is a rather tough, durable, and reliable, dual-purpose AGM SLA battery, intended for the most demanding marine, automotive and industrial applications - as such, it costs more than the average dual-purpose or deep-cycle group 31 battery. And it is worth every (euro)cent.
- AIMS LFP12V100AB is much lighter: 27.5 vs 77.8 pounds,
- AIMS LFP12V100AB may provide 100 Amps continuously and 200 Amps for 10 seconds, while Odyssey 31M-PC2150 may provide 2150 Amps for 5 seconds. Also, it features an HCA rating of 1545 Amps, an MCA rating of 1370 Amps, and a CCA rating of 1150 Amps. Note: Odyssey 31M-PC2150 is a dual-purpose battery, not a starting/cranking battery!
- AIMS LFP12V100AB is intended to be discharged between -4°F and 149°F, while Odyssey 31M-PC2150 can be discharged down to -40°F (-40°C), with a certain drop in performances, of course.
Note: The author of this article tend to be a little bit biased toward Odyssey batteries, especially the 31-PC2150 group because of their ability to crank the engine under the most severe weather and their ability to accept the surface charge for quick jump boost (again, jump boost, not jump start). But, there is no such thing as a perfect battery!
- AIMS LFP12V100AB battery is able to withstand 4000 cycles down to 100% DoD and 4800 cycles down to 80% DoD, while Odyssey 31M-PC2150 is able to endure ~320 cycles down to 100% DoD and ~400 cycles down to 80% DoD.
- when both batteries are discharged for two hours, the AIMS LFP12V100AB battery is able to provide 50 Amps constantly (~1200 Wh, 100Ah), while Odyssey 31M-PC2150 is able to provide 39.0 Amps (~922 Wh, 78Ah) constantly, down to 10.05 volts.
- AIMS LFP12V100AB feature Bluetooth connectivity, allowing the user to monitor the battery remotely.
- AIMS LFP12V100AB comes with a 10-year limited warranty and Odyssey 31M-PC2150 comes with a 4-year limited warranty (which is some of the best warranties for AGM batteries on the market).
Odyssey 31M-PC2150 is much heavier than AIMS LFP12V100AB, but for discharge applications, AIMS LFP12V100AB cannot match Odyssey 31M-PC2150 battery, not even close.
But, AIMS LFP12V100AB is not even intended for high-discharge applications - AIMS LFP12V100AB can withstand 10-12x more charging/discharging cycles when compared with Odyssey 31M-PC2150 (15-20x more charging/discharging cycles when compared with general-purpose deep-cycle, AGM/Gel-Cell group 31 batteries) and doesn't suffer from capacity loss when being discharged with somewhat stronger currents (50-100 Amps).
AIMS Power LFP12V200A and AIMS Power LFP12V200AB Lithium-Ion Batteries
AIMS Power LFP12V200A and AIMS Power LFP12V200AB lithium-ion batteries are at the moment the largest 12V lithium-ion batteries manufactured by AIMS Power.
Just like 50Ah and 100Ah batteries, AIMS Power LFP12V200A and AIMS Power LFP12V200AB batteries also differ slightly in size, weight, and of course, the Bluetooth connectivity.
Nonetheless, both AIMS Power LFP12V200A and AIMS Power LFP12V200AB feature a nominal capacity of 200Ah, a minimum capacity of 195Ah, and a nominal voltage of 12.8 volts - both batteries are capable of storing (and delivering) ~2400 Wh of energy. And that is a lot and something not to play with - seriously.
Unlike 50Ah and 100Ah models that feature a maximum allowed charging current of 1C, AIMS Power LFP12V200A and AIMS Power LFP12V200AB feature a maximum allowed charging current of 160 Amps (0.8 C) and if they are discharged down to 100% DoD, they can't be recharged within 1 hour.
Similarly, while 50Ah and 100Ah batteries feature maximum allowed 10s current of 2C (100 and 200 Amps, respectively), AIMS Power LFP12V200A and AIMS Power LFP12V200AB feature maximum allowed 10s current of 350 Amps (1.75C) - this is not a big difference, but it should be noted.
Maximum allowed continuous discharge current of AIMS 12V 200Ah lithium batteries is 200 Amps - 1C, just like 50 Ah and 100 Ah models (50 Amps and 100 Amps, respectively).
With 4000+ charging/discharging cycles, AIMS Power LFP12V200A and AIMS Power LFP12V200AB are excellent choices for deep cycle applications where the initial price of the batteries is not an issue.
Although the initial price of AIMS lithium batteries is higher than the price of 12V AGM and Gel-Cell lead-acid batteries of a similar capacity, AIMS batteries are able to withstand a much larger number of charging/discharging cycles - in the long run, they save money and lead to serious weight reduction of the battery packs.
Note: if even larger batteries or battery packs are required, consider AIMS industrial 24V 300Ah and 48V 150Ah (Amazon links, open in the new windows) lithium battery packs.
AIMS Power LFP12V200AB Lithium Battery vs VMAXTANKS XTR4D-200 AGM Battery
VMAXTANKS XTR4D-200 AGM battery is one of the most versatile BCI Group 4D batteries. Although it is labeled as a deep-cycle battery, it can also provide large starting/cranking currents and is often used not only in off-the-grid applications but also as an automotive and industrial battery.
Physical dimensions of these batteries are (L x W x H):
- AIMS LFP12V200A: 20.7 x 10.6 x 8.7 inches (~526 x 269 x 221 mm), 61.7 pounds,
- AIMS LFP12V200AB: 20.5 x 9.0 x 9.25 inches (~521 x 229 x 235 mm), 56.5 pounds,
- BCI Group 4D: 20 3/4 x 8 3/4 x 9 7/8 inches (20.75 x 8.75 x 9.875 inches, ~527 x 222 x 250 mm),
- BCI Group 6D: 20 3/4 x 10 x 10 1/4 inches (20.75 x 10 x 10.25 inches, ~527 x 254 x 260 mm),
- BCI Group 8D: 20 3/4 x 11 1/8 x 9 7/8 inches (20.75 x 11.125 x 9.875 inches, ~527 x 283 x 250 mm),
- VMAXTANKS XTR4D-200: 20.8 x 8.7 x 9.0 (9.8 terminals) inches (~528 x 221 x 229 (249) mm), 130 pounds.
As one can see, although both AIMS 12V 200Ah lithium batteries are labeled as 4D group batteries, the 'older' LFP12V200A is even wider than the BCI 6D battery standard, the 'newer' LFP12V200AB is somewhat wider than the BCI 4D battery standard and the VMAXTANKS XTR4D-200 practically can fit into the battery compartments intended for 4D batteries, although it is by a fraction of an inch longer than the BCI 4D battery standard.
- AIMS LFP12V200AB is a much lighter battery: 56.5 vs 130 pounds,
- AIMS LFP12V200AB features a maximum continuous discharge current of 200 Amps and 350 Amps for 10 seconds bursts. Also, it can provide 25 Amps for ~8 hours (RC rating ~480 minutes) and 75 Amps for 160 minutes. VMAXTANKS XTR4D-200 features an MCA rating of 1670 Amps, CCA rating of 1250 Amps, RC (Reserve Capacity - 25 Amps) rating of 470 minutes (~195 Ah) and is able to provide 75 Amps for 140 minutes (~175 Ah).
- AIMS LFP12V200AB can be recharged with a maximum charging current of 160 Amps (personally, 100 Amps is just fine), while VMAXTANKS XTR4D-200 should be recharged with a charging current of 15-50 Amps.
- AIMS LFP12V200AB can withstand ~4000 cycles down to 100% DoD and ~4800 cycles down to 80% DoD. Unfortunately, there are no exact numbers provided for the VMAXTANKS XTR4D-200 AGM battery, but personally, it can hardly withstand more than 400 cycles down to 80% DoD (which would be a very good result for an AGM battery).
- AIMS LFP12V200AB battery comes with Bluetooth connectivity for detailed battery monitoring and control.
AIMS Power LFP12V200AB and VMAXTANKS XTR4D-200 are not cheap batteries, to say the least.
But, for people requiring a strong and durable 4D battery, VMAXTANKS XTR4D-200 is an excellent choice - it is labeled as deep-cycle, but it can crank surprisingly large engines.
On the other hand, for people requiring a lightweight battery with a large number of charging/discharging cycles, even when the battery is deeply discharged almost every time, AIMS Power LFP12V200AB is a far better choice - initially, it costs more than the 4D AGM batteries, but thanks to 10-15x, sometimes even 20x more cycles, in the long run, it actually saves them money.
AIMS Power Lithium-Ion Batteries - Parallel and Series Connections
AIMS Power provides a detailed explanation of how to connect their 12V lithium batteries in series and parallel in order to create battery packs with voltages up to 48 volts, and higher capacities.
That is why we will not discuss in detail about it, except for one thing - how to connect the two batteries in parallel.
The picture above shows very simplified schematics of connecting two batteries in parallel - note the red wires.
In the example on the left side, Bat-2 (lower battery) is less stressed than the Bat-1 (upper battery), because Bat-2 connecting wires are longer than the connecting wires of the Bat-1, regardless of how thick those wires are.
This is NOT the way larger lead-acid (flooded, AGM, Gel-Cell, Enhanced flooded, etc.) batteries should be connected - over time, the upper battery will start to degrade faster and faster, ruining both batteries, and in the end, the whole battery pack.
Similarly, this can happen to lithium-ion batteries as well. But, lithium-ion batteries are able to withstand a much larger number of charging/discharging cycles, can withstand much deeper discharges than lead-acid batteries, and they are commonly discharged with lower currents than the lead-acid batteries - all these lead to lesser imbalances between the batteries in such battery pack.
Also, lithium-ion batteries commonly feature Battey Management Systems (BMS) that periodically equalize the cells in the battery, prolonging their operating time.
You can call me 'Old School' or even a 'dinosaur', but the batteries in parallel, regardless of their chemistry should be connected like it is given in the example on the right side - both batteries (Bat-1 and Bat-2) have connecting wires of the same length and are equality stressed, regardless of the current strength or the cable thickness.
How to Charge AIMS Power Lithium Batteries
AIMS Power lithium batteries should NOT be recharged by directly connecting them to the electric systems of the vehicles with the alternators and should NOT be recharged using intelligent lead-acid battery chargers.
Such charging methods can cause the builtin BMS to disconnect the battery (best case scenario) or they can even destroy the BMS and in the end, the battery.
AIMS Power lithium batteries must be recharged using dedicated advanced lithium battery chargers or advanced AGM battery chargers that feature dedicated lithium battery charging mode.
Although AIMS Power lithium batteries support charging currents in the 0.8C - 1.0C (model dependent), keeping the charging current around 0.5C can prolong the battery operating life (not explicitly stated by the manufacturer, but ...).
Thus, LFP12V50A and LFP12V50AB batteries can be recharged using smart lithium battery chargers in the 20-30 Amps range, LFP12V100A and LFP12V100AB batteries can be recharged using battery chargers in the 40-60 Amps range, and LFP12V200A and LFP12V200AB batteries can be recharged with the battery chargers in the 70-90 Amps range.
When charging the batteries, it is recommended, although not necessary, to charge the batteries with the battery charger of the same brand.
AIMS Power manufactures several smart battery chargers that are suitable for various lead-acid and lithium-ion batteries, covering various voltages and charging currents, including (Amazon affiliate links, open in the new windows):
- AIMS Power CON120AC1224DC Smart Battery Charger: 12V 75A or 24V 37.5 A, charges both lead-acid and lithium batteries,
- AIMS Power CON120AC3648VDC Smart Battery Charger: 36V 25A or 48V 18.75A, charges both lead-acid and lithium batteries.
People looking for an all-in-one solution should consider AIMS Power Smart Inverter Chargers. These units are anything but cheap, but the single box contains both the power inverter AND the battery charger.
AIMS Smart Inverter Charger acts as a UPS (Uninterruptible Power Supply) - when the mains power is lost, the unit operates as a 'classic' power inverter using the energy from the battery to provide AC power. And when the mains power is back (or solar power, power from the generator, etc.) unit operates as a battery charger and charges the battery or battery pack.
If You already have an intelligent lithium battery charger or AGM battery charger that comes with lithium battery charging mode, regardless of the brand, check the maximum charging current and supported voltages. For example, if You have single-bank 12V 25 Amps lithium battery charger and two batteries connected in series, it can be very time consuming to recharge the batteries individually. Considering the price of such battery pack, a good battery charger costs just a fraction of its price.
Also, it can be used as a constant current and constant voltage power supply, jump booster (not jump starter, but a jump booster - it quickly increases the surface charge of the discharged battery, allowing it to crank the engine), etc.
NOCO Genius G26000 is suitable for AIMS lithium batteries, just be sure to set the required charging mode.
Of course, all batteries can be recharged even with smaller lithium battery chargers, but such charging can last too long - for example, 10 Amps battery charger requires ~20h to recharge LFP12V200A or LFP12V200AB battery discharged down to 100% DoD.
In the off-the-grid applications, AIMS Power lithium batteries can be recharged using MPPT charge controllers that support charging of the lithium batteries.
On the input side, such charge controllers commonly have solar panels, but other power sources may be present as well.
Note: such systems are far from being cheap (controllers, batteries, inverters...), but provide practically full autonomy when and where the mains power is not present.
For example: if required, it is also possible to recharge AIMS 12V lithium batteries using the combination of:
- portable power generator, preferably with pure sine wave output,
- smart lithium-ion battery charger, or general-purpose smart battery charger with dedicated lithium-ion battery charging mode.
When being off-the-grid, using a portable power generator, one can easily recharge any battery - turn on the power generator, connect the battery charger to the power generator's 120V AC outlet and connect the battery to the charger (or first connect the battery to the charger and only than charger to the power generator - depends on the models).
Although many power generators feature a 12V DC port for charging the batteries, these ports are intended for charging lead-acid batteries and NOT lithium-ion batteries and are also very often limited to 7-12 Amps.
2000W portable inverter generators are very popular units that can power various tools and appliances, battery chargers included. A good 25 Amps lithium battery charger requires ~500 watts of power and most 2000W portable generators are able to provide such power for at least 6-7 hours, during which 25 Amps charger can transfer up to 150-175 Ah @12 volts - it can recharge 3 (three) fully discharged AIMS LFP12V50AB batteries, 2 (two) AIMS LFP12V100AB batteries discharged down to 75% DoD or 1 (one) AIMS LFP12V200AB discharged down to 75% DoD.
Note: this is just an example to provide a sense of required power levels, required time, currents, capacities, and similar.
AIMS Power Lithium Batteries as Trolling Motor Batteries
AIMS Power 12V lithium batteries may be used as excellent lightweight trolling motor batteries.
The following chart lists some of the most popular electric trolling motors:
Note: Amazon affiliate links in the table open in the new windows, feel free to check them for the most up-to-date offers and prices.
AIMS Power LFP12V50AB is suitable for electric trolling motors up to 40-45 pounds of thrust, requiring up to 40-42 Amps of constant current when run at full throttle.
AIMS Power LFP12V50AB can provide 50 Amps continuously and 100 Amps for 10 seconds, but it is good to have some safety margin - electric trolling motors may hit the bottom, have issues with tangled weed, ropes, fishing lines that may cause current to spike. AIMS Power LFP12V50AB comes with numerous safety features, but it is a good practice not to push the equipment to its limits.
When such electric trolling motors are run at medium power, let's say 25 Amps, AIMS Power LFP12V50AB may provide up to 2h of operation, which is an excellent result for such a lightweight battery.
AIMS Power LFP12V100AB is able to power even the strongest 12V electric trolling motors (up to 60 Amps) up to 100 minutes at full throttle, while AIMS Power LFP12V200AB may power such units up to 200 minutes (3+ hours).
Stronger electric trolling motors require at least 24 volts and since AIMS lithium batteries support connecting the batteries in series, they can be used to power both 12V and 24V electric trolling motors.
AIMS Power Lithium Batteries as Sump Pump Batteries/UPS Batteries
AIMS Power lithium batteries may be used as a sump pump and UPS batteries, as well as for other standby applications.
However, sump pump backup installations and UPS installations are type of float/standby applications where the weight of the battery and the number of supported charging and discharging cycles is not that much important.
Thus, a good and reliable AGM/Gel-Cell battery may be just as good solution as an AIMS lithium battery, but few times cheaper.
On the other hand, when discharged, such AGM/Gel-Cell battery will not be able to be recharged as fast as equivalent AIMS lithium battery.
So, if You need a new sump pump backup battery, consider a high-end AGM/Gel-Cell battery. Due to their price, lithium batteries in general are simply an 'overkill' to be used as default sump pump backup batteries.
But, if You find yourself in a situation that your sump pump battery is dead (or almost dead), but you have a fully charged equivalent AIMS lithium battery that is able to power your sump pump via suitable power inverter, go for it - it will perform well.
AIMS Power Lithium Batteries as Power Inverter Batteries/RV House Batteries
AIMS lithium batteries, especially LFP12V200A and LFP12V200AB models can be used as excellent power inverter and RV house batteries.
Just two LFP12V200A/LFP12V200AB connected in series or parallel are able to store ~4800 Wh of energy that can be converted into 120V AC via suitable power inverters.
In order to decrease the power losses, it is highly recommended to use 24V or even 48V battery packs and power inverters.
- 2x LFP12V200AB: 24V, 200Ah, ~4800 Wh, ~4800 Runtime Watts, ~8400 Starting Watts,
- 4x LFP12V200AB: 48V, 200Ah, ~9600 Wh, ~9600 Runtime Watts, ~16800 Starting Watts.
Such battery packs, when connected to pure sine wave power inverters with efficiency of ~85% are able to power various tools and home appliances, including RV AC units:
- RV Air Conditioner 7.000 BTU: 900 Running Watts, 1700 Starting Watts, up to ~4.5 hours (~9 hours),
- RV Air Conditioner 10.000 BTU: 1200 Running Watts, 2000 Starting Watts, up to ~3 hours 20 minutes (~6 hours and 40 minutes),
- RV Air Conditioner 13.500 BTU: 1600 Running Watts, 2500 Starting Watts, up to ~2 hours 30 minutes (~5 hours), etc.
If the RV has the AC unit of the higher efficiency, then the runtime of such a battery system can be even longer.
Note: if even larger batteries or battery packs are required, consider AIMS industrial AIMS Power 24V 300Ah Lithium Battery and AIMS Power 48V 150Ah Lithium Battery (Amazon links, open in the new windows) lithium battery packs.
Long Story Short: Main advantages of AIMS Power lithium 12V batteries over similar lead-acid (AGM, Gel-Cell, wet) batteries is their lightweight design and their cycle ability, regardless of the DoD%.
Also, they come with numerous safety features, protecting the batteries from various undesirable events, like overcharging, over-discharging, over-current, short circuit, etc.
Note that the 'newer' ('AB') models also come with Bluetooth connectivity, allowing the user to easily monitor the status of their batteries.
As one can see, all of the equipment mentioned in this article (batteries, chargers, inverters, etc.) are powerful and expensive and they are not - toys, something to 'play with', or something 'to try', or anything similar.
If You are unsure about something, let a local certified professionals do the job for you. Or You can check (non-affiliate links, links open in the new windows):
and ask for help. Also, AIMS Power equipment can be easily ordered online from their AIMS Power Amazon store (affiliate link, opens in the new window) and with fast shipping (if allowed by regulations - equipment dependent), it can be at your door-step rather quickly.
Considering the voltages, currents, and even the weight of these units, whatever You do, be sure to stay safe!
For more reviews and recommendations, feel free to check AIMS Power LFP12V50, AIMS Power LFP12V100 and AIMS Power LFP12V200 Amazon links (links open in the new windows).