Best 36 Volt Lithium Marine and RV Battery
Marine and RV 36-volt lithium batteries are used to store large amounts of energy and release it when needed. Shifting from 12V to 36V increases energy efficiency while keeping the required wiring at acceptable thickness.
Also, moving from lead-acid to lithium batteries decreases the weight of the battery pack, increases the number of charging/discharging cycles, increases the battery energy efficiency, etc.
Published: July 21, 2021.
Single 36-Volt Lithium Battery vs Three 12-Volt Lithium Batteries Connected in Series
Marine, automotive, RV and light-industry lithium batteries are almost exclusively Lithium Iron Phosphate (LiFePO4) batteries, featuring a nominal voltage of 3.2 volts and standard discharge current of ~1C and surge current ~2C - of course, these values vary from the battery to the battery.
In order to make these batteries as safe as possible, lithium batteries come with the built-in Battery Management System (BMS) that protects the battery from unwanted events like short-circuit, overcharge, over-discharge, overcurrent, overheating, etc.
Also, BMS ensures cell-balancing and ensures proper operation when the batteries are connected in series and/or parallel - if allowed by the battery manufacturer!
In order to achieve 36-volts, one may use a single 36-volt lithium battery or three 12-volt lithium batteries connected in series.
If You need a 36-volt lithium battery, it is much simpler to have a single battery of the required capacity and to charge it using a single 36-volt lithium battery charger.
The following comparison chart lists some of the most popular 36-volt lithium batteries suitable for marine, RV, automotive, and even light-industrial use:
| Model | Group Size Capacity |
Discharge Currents |
Parallel Conn. Series Conn. |
Weight (lbs/kg) |
| CHINS 36V 100Ah LiFePO4 | 8D 100Ah |
100A cont. | Yes | 63.2 lbs; 28.7 kg |
| DEESPEAK 36V 80Ah LiFePO4 | 4D/6D 80 |
80A cont. 160A 3-5s |
P: Yes S: No |
56.1 lbs; 25.4 kg |
| DEESPEAK 36V 100Ah LiFePO4 | 4D/6D 100 |
100A cont. 200A 3-5s |
P: Yes S: No |
62.7 lbs; 28.4 kg |
| Fly Power 36V100Ah | 4D/6D 100 |
100A cont. 200A 3-5s |
Yes | - |
| Kepworth 36V80Ah | 4D/6D 80 |
64-80A cont. | ? | 56.5 lbs; 25.6 kg |
| Kepworth 36V 100Ah | 4D/6D 100 |
100A cont. | P:? S: No |
62.9 lbs; 28.5 kg |
| Lossigy 36V 100Ah LiFePO4 | 8D 100Ah |
100A cont 500A 5s |
P: 4 S: No |
? |
| Lynx 36V 200Ah LiFePO4 | - 200Ah |
400A | Yes | 114 lbs; 51.7 kg |
| MoseWorth 36V100Ah | 4D/6D 100 |
- | Not recommended | ? |
| OCELL 36V 60Ah LiFePO4 | - 60 |
80A cont. | P: 5 S: ? |
~40 lbs; ~18.2 kg |
| Scream Power 36V40Ah | 95R 40 |
40A cont. 80A surge (s?) |
? | 28.7 lbs; 13 kg |
| Scream Power 36V80Ah | 4D/6D 80 |
80A cont. 160A surge (s?) |
? | 57.2 lbs; 25.9 kg |
| Scream Power 36V100Ah | 4D/6D 100 |
100A cont. 200A surge (s?) |
? | 70.5 lbs; 31.94 kg |
| Scream Power 36V120Ah | - 120 |
120A cont. 240A surge (s?) |
? | 83.8 lbs; 39.96 kg |
Note: Amazon affiliate links ('Model' column) open in the new windows, feel free to check them for the most up-to-date prices and offers. Also, we have tried to verify every single bit of information in this chart, but things may change over time, especially with the introduction of new battery (sub)models.
Most 36-volt lithium batteries are large batteries often labeled as 4D batteries, but featuring actual dimensions of somewhat larger BCI Group 6D batteries.
Also, 36-volt lithium batteries are not as common as 12-volt lithium batteries - 36-volt lithium batteries are newer on the market and they are not offered by as many brands as 12-volt lithium batteries.
The following comparison chart lists some of the most popular 12-volt lithium batteries suitable for marine, RV, automotive, and light-industrial use:
| Model | Battery Type Chemistry |
Group Size Capacity (Ah) |
Discharge Currents | Parallel / Series Connections | Weight (lbs/kg) |
| Aicipow PDAC-12100 | Deep Cycle LiFePO4 |
31 100 |
100A cont. | P: up to 4 S: up to 4 |
26 lbs; 11.8 kg |
| Aicipow PDAC-12200 | Deep Cycle LiFePO4 |
4D (6D) 200 |
100A cont. | P: up to 4 S: up to 4 |
58 lbs; 26.3 kg |
| AIMS Power LFP12V50A | Deep Cycle LiFePO4 |
- 50 |
50A cont. 100A 10s |
? | 17.75 lbs; 8.04 kg |
| AIMS Power LFP12V100A | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 10s |
? | 30.2 lbs; 13.7 kg |
| AIMS Power LFP12V200A | Deep Cycle LiFePO4 |
4D (6D) 200 |
160A cont. 350A 10s |
? | 77 lbs; 34.9 kg |
| AIMS Power LFP12V50B | Deep Cycle LiFePO4 |
- 50 |
50A cont. 100A 10s |
P: up to 4 S: up to 4 |
15.5 lbs; 7.0 kg |
| AIMS Power LFP12V100B | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 10s |
P: up to 4 S: up to 4 |
28.5 lbs; 12.9 kg |
| AIMS Power LFP12V200B | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. 400A 10s |
P: up to 4 S: up to 4 |
62 lbs; 28.1 kg |
| Banshee LFP-31M | Dual Purpose LiFePO4 |
31 100 |
1200 CCA | P: ? S: up to 4 |
24.2 lbs; 11 kg |
| Battle Born BB5012 | Deep Cycle LiFePO4 |
- 50 |
60A cont. 100A 30s |
P: yes S: up to 4 |
17.6 lbs; ~8.0 kg |
| Battle Born BB10012 | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 30s |
P: yes S: up to 4 |
29 lbs; 13.2 kg |
| Battle Born BB10012H | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 30s |
P: ∞ S: up to 4 |
31 lbs; 14.1 kg |
| Battle Born BBGC2 | Deep Cycle LiFePO4 |
GC2 100 |
100A cont. 200A 30s |
P: yes S: up to 4 |
31 lbs; 14 kg |
| Bioenno Power BLF-12100WS | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 5s |
(not recommended) | 28.1 lbs; 12.8 kg |
| Chins 12V50Ah | Deep Cycle LiFePO4 |
- 50 |
50A cont. 150A 5s |
P: up to 4 S: up to 4 |
13.8 lbs; 6.3 kg |
| Chins 12V100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. 300A 5s. |
P: up to 4 S: up to 4 |
23.9 lbs; 10.8 kg |
| Chins 12V200Ah | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. 600A 5s |
P: up to 4 S: up to 4 |
49.4 lbs; 22.4 kg |
| Chins 12V300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. 600A 5s |
P: up to 4 S: up to 4 |
67.3 lbs; 30.5 kg |
| Chins 12V400Ah | Deep Cycle LiFePO4 |
4D (6D) 400 |
250A cont. 750A 5s |
P: up to 4 S: up to 4 |
86.4 lbs; 39.2 kg |
| Eastup 1250750 | Dual Purpose LiFePO4 |
34R/97R 50 |
750 CCA 930 MCA |
? | 15.43 lbs; ~7.0 kg |
| Eastup 12751000 | Dual Purpose LiFePO4 |
94R 75 |
1000 CCA | ? | 18.5 lbs; 8.4 kg |
| Eco-Worthy 12V50Ah | Deep Cycle LiFePO4 |
- 50 |
60A cont. | P: unlimited S: up to 4 |
11.9 lbs; 5.4 kg |
| Eco-Worthy 12V100Ah | Deep Cycle LiFePO4 |
34 100 |
- | P: up to 4 S: up to 4 |
23 lbs; 10.4 kg |
| Eco-Worthy 12V150Ah | Deep Cycle LiFePO4 |
31 150 |
150A cont. | P: unlimited S: up to 4 |
36.7 lbs; 16.6 kg |
| Eco-Worthy 12V200Ah | Deep Cycle LiFePO4 |
- 200 |
120A cont. | P: unlimited S: up to 4 |
52.9 lbs; 24 kg |
| ExpertPower EP1250 | Deep Cycle LiFePO4 |
- 50 |
50A cont. 100A 10s |
? | 13 lbs; 5.9 kg |
| ExpertPower EP12100 | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200A 2s |
? | 22.6 lbs; 10.3 kg |
| ExpertPower EP12200 | Deep Cycle LiFePO4 |
4D (6D) 200 |
150A cont. 200A 3s |
? | 48.3 lbs; 21.9 kg |
| GLI GLIBATT12050 | Deep Cycle LiFePO4 |
26 50 |
50A cont. 500A 5s(?) |
P: yes S: up to 4 |
12 pounds; 5.5 kg |
| GreenLiFE GL50-50AH | Deep Cycle LiFePO4 |
21 50 |
50A cont. | Yes | 15 lbs; 6.8 kg |
| GreenLiFE GL80-80AH | Deep Cycle LiFePO4 |
27 80 |
80A cont. | Yes | 28 lbs; 12.8 kg |
| GreenLiFE GL100-100AH | Deep Cycle LiFePO4 |
31 100 |
100A cont. 1000A 5s |
Yes | 31 lbs; 14 kg |
| GreenLiFE GL260-260AH | Deep Cycle LiFePO4 |
8D 260 |
100A cont. 2600A 5A |
Yes | 80 lbs; 36.24 kg |
| JITA 12V100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. | P: up to 4 S: up to 4 |
24.2 lbs; ~11.0 kg |
| JITA 12V200Ah | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. | P: up to 4 S: up to 4 |
48.9 lbs; 22.2 kg |
| JITA 12V300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. | P: up to 4 S: up to 4 |
59.5 lbs; 27 kg |
| JITA 12V400Ah | Deep Cycle LiFePO4 |
4D(6D) 400 |
200A cont. 400A 5s |
P: up to 4 S: up to 4 |
83.7 lbs; 37.9 kg |
| Kunmo LF-12100 | Deep Cycle LiFePO4 |
75 100 |
100A cont. | ? | 25.3 lbs; 11.5 kg |
| LiTime (Ampere Time) 12V 50Ah Plus | Deep Cycle LiFePO4 |
- 50 |
50A cont. 100A 5s |
P: up to 4 S: up to 4 |
14.3 lbs; 6.5 kg |
| LiTime (Ampere Time) 12V 100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. 280A 5s |
P: up to 4 S: up to 4 |
24.25 lbs; 11 kg |
| LiTime 12V 100Ah Mini | Deep Cycle LiFePO4 |
24 100 |
100A cont. 250A 5s |
P: up to 4 S: up to 4 |
19 lbs; 8.6 kg |
| LiTime (Ampere Time) 12V 200Ah Plus | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. 400A 5s |
P: up to 4 S: up to 4 |
52.3 lbs; 23.7 kg |
| LiTime (Ampere Time) 12V 300Ah Plus | Deep Cycle LiFePO4 |
4D (8D) 300 |
200A cont. 400A 5s |
P: up to 4 S: up to 4 |
63 lbs; 28.54 kg |
| LiTime (Ampere Time) 12V 400Ah Plus | Deep Cycle LiFePO4 |
8D 400 |
250A cont. 750A 5s |
P: up to 4 S: up to 4 |
86.2 lbs; 39.1 kg |
| Lossigy 12V100Ah | Deep Cycle LiFePO4 |
- 100 |
50A cont. | P: up to 10 S: up to 4 |
23.8 lbs; 10.8 kg |
| Lossigy 12V200Ah | Deep Cycle LiFePO4 |
4D 200 |
100A cont. | P: no limit (10?) S: up to 4 |
46 lbs; 20.9 kg |
| Lossigy 12V300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. | P: up to 10 S: up to 4 |
72 lbs; 32.6 kg |
| Lossigy 12V400Ah | Deep Cycle LiFePO4 |
4D (6D) 400 |
200A cont. | P: up to 10 S: up to 4 |
95 lbs; 43 kg |
| Mighty Max ML100-12LI | Deep Cycle LiFePO4 |
30H 100 |
100A cont. 200A 15s |
P: up to 4 S: not allowed |
29.54 lbs; 13.4 kg |
| Mighty Max ML4D-LI | Deep Cycle LiFePO4 |
4D (6D) 200 |
- | P: up to 4 S: not allowed |
48 lbs; 21.8 kg |
| PacPow 12V 100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. 300A 10s |
P: up to 4 S: up to 4 |
27.56 lbs; 12.5 kg |
| Pionergy 12V200Ah | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. | P: up to 4 S: up to 4 |
46.1 lbs; 20.9 kg |
| Pionergy 12V300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. | P: up to 2 S: up to 4 |
71.2 lbs; 32.3 kg |
| Power Queen 12V100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. | P: up to 4 S: up to 4 |
25.25 lbs; 11.0 kg |
| Power Queen 12V200Ah | Deep Cycle LiFePO4 |
4D (6D) 200 |
100A cont. | P: up to 4 S: up to 4 |
48.28 lbs; 21.9 kg |
| Power Queen 12V300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. | P: up to 4 S: up to 4 |
62.8 lbs; 28.5 kg |
| Renogy RNG-BATT-LFP-12-50 | Deep Cycle LiFePO4 |
- 50 |
50A cont. | P: yes S: not allowed |
14.77 lbs; 6.7 kg |
| Renogy RBT100LFP12S-G1 | Deep Cycle LiFePO4 |
- 100 |
100A cont. | P: yes S: not allowed |
26 lbs; 11.8 kg |
| Renogy RNG-BATT-LFP-12-170 | Deep Cycle LiFePO4 |
- 170 |
125A cont. | ? | 46.3 lbs; 20.97 kg |
| Scream Power 12V100Ah | Deep Cycle LiFePO4 |
31 100 |
? | P: ? S: no |
24.3 lbs; 11 kg |
| Scream Power 12V400Ah | Deep Cycle LiFePO4 |
- 400 |
400A cont. 800A peak |
? | 81.4 lbs; 36.9 kg |
| Vatrer 12V 100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. | P: up to 4 S: up to 4 |
33 lbs; 15 kg |
| Vatrer 12V 200Ah | Deep Cycle LiFePO4 |
4D 200 |
100A cont. | P: up to 4 S: up to 4 |
48.5 lbs; 22 kg |
| Vatrer 12V 460A | Deep Cycle LiFePO4 |
8D 460 |
250A cont. | P: up to 4 S: up to 4 |
105 lbs; 47.5 kg |
| VMAXTANKS LF27-12100 | Deep Cycle LiFePO4 |
27 100 |
125A cont. 350A 3s |
P: up to 4 S: up to 4 |
25.3 lbs; 11.5 kg |
| VMAXTANKS LFPU1-1245 | Deep Cycle LiFePO4 |
U1 45 |
45A cont. 100A 3s |
P: up to 4 S: up to 4 |
10.8 lbs; 4.9 kg |
| VMAXTANKS VPG12C-50Li | Deep Cycle LiFePO4 |
U1 50 |
50A cont. 100A 5s 150A 3s |
P: up to 2 S: not allowed |
12 lbs; 5.5 kg |
| Waterblade LFP 100-12.8 | Deep Cycle LiFePO4 |
- 100 |
80A cont. 400A 1s |
? | 29 lbs; 13.2 kg |
| Weize FPLI-12100AH | Deep Cycle LiFePO4 |
31 100 |
100A cont. 200-250A surge |
P: up to 4 S: up to 4 |
26.4 lbs; 12.0 kg |
| Weize TPLI-12200AH | Deep Cycle LiFePO4 |
4D (6D) 200 |
100A cont. 200A 3s |
P: up to 4 S: up to 4 |
27.6(?) lbs; 12.5(?) kg |
| Weize TPLI-12300AH | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. 400A 3s |
P: up to 4 S: up to 4 |
60.5 lbs; 27.4 kg |
| Wingda W100-12V100AH | Deep Cycle LiFePO4 |
31 100 |
50A cont. | P: up to 4 S: up to 4 |
23.8 lbs; 10.8 kg |
| Wingda W200-12V200AH | Deep Cycle LiFePO4 |
4D (6D) 200 |
100A cont. | P: up to 4 S: up to 4 |
48.9 lbs; 22.15 kg |
| Wingda W300-12V300AH | Deep Cycle LiFePO4 |
8D 300 |
200A cont. | P: up to 4 S: up to 4 |
70.54 lbs; 31.95 kg |
| Zooms 12V 100Ah | Deep Cycle LiFePO4 |
31 100 |
100A cont. | P: up to 4 S: up to 4 |
25.35 lbs; 11.5 kg |
| Zooms 12V 200Ah | Deep Cycle LiFePO4 |
4D (6D) 200 |
200A cont. | P: up to 4 S: up to 4 |
49.6 lbs; 22.5 kg |
| Zooms 12V 300Ah | Deep Cycle LiFePO4 |
4D (6D) 300 |
200A cont. | P: up to 4 S: up to 4 |
62.83 lbs; 28.5 kg |
As one can see, 12-volt lithium batteries are more numerous, with their manufacturers providing much more details than the manufacturers of 36-volt lithium batteries, which may be very important when creating custom lithium battery packs.
Note: If a single 36-volt lithium battery fits your needs, consider purchasing that battery with the battery charger from the same brand. However, if You need a custom 36-volt battery pack, personally, 12-volt lithium batteries are much more mature units than 36-volts lithium batteries. Just my 2c!
When creating battery packs by connecting several batteries in series and/or parallel, be sure that their BMSs support such connections, be sure to always use the very same batteries from the same brand and preferably from the same batch, use wires thick enough and connect the batteries as recommended by the manufacturer.
Note: connecting lead-acid batteries in series/parallel is much simpler in terms of planning, but lithium batteries due to their built-in Battery Management Systems are much more sensitive. If unsure, always, but really always check the battery documentation and if required, contact the battery manufacturer.
Long Story Short: 36-volt lithium batteries are becoming more and more popular in marine, RV, automotive, off-the-grid, and industrial applications. Such batteries are able to store large amounts of energy, they cycle much better than lead-acid batteries, they are more energy-efficient, much lighter, etc.
Also, lithium batteries are more expensive than lead-acid batteries, but since they support 8-10x more charging/discharging cycles, in the long run, they actually save money.
Lithium Iron Phosphate (LiFePO4) chemistry is rather safe chemistry, especially when combined with good BMS, but, whatever You do, do according to the manufacturer's recommendations - if mistreated, these batteries may also overheat, catch fire or even explode ...
Stay safe ...