Battery Equivalents and Replacements

Types of Lithium Battery Chemistries

Lithium batteries feature different chemistries, hence they have different charging and discharging characteristics.

Most common lithium battery chemistries include Lithium Iron Disulfide (Li-FeS2), Lithium Thionyl Chloride (Li-SOCl2), Lithium Manganese Dioxide (Li-MnO2), Lithium Carbon Monofluoride (Li-(CF)x), Manganese Dioxide Lithium (MnO2-Li), Vanadium Lithium, Cobalt Titanium Lithium, Lithium Titanium, Lithium Manganese Oxide (LiMn204, IMR), Lithium Manganese Nickel (LiNiMnCoO2, INR), Lithium Iron Phosphate (LiFePO4, IFR), Lithium Cobalt Oxide (LiCoO2, ICR), etc.

Here are the most common lithium battery chemistries with their most important features and specifications:

energizer aa ultimate w300pLithium Iron Disulfide (Li-FeS2) is a non-rechargeable type of lithium battery chemistry, featuring a nominal voltage of 1.5 volts, with an open-circuit voltage of 1.8 volts.

Lithium Iron Disulfide (Li-FeS2) chemistry is used for AA and AAA batteries as a replacement for Zinc-Carbon and Alkaline AA and AAA batteries. It features a very long shelf-life (20+ years), good capacity, and is able to provide rather strong currents.

Lithium Iron Disulfide (Li-FeS2) batteries are used for high-discharge devices like cameras and other photo equipment, for standby devices, and for Every Day Carry (EDC) and other flashlights that are not used on a daily basis.

Lithium Thionyl Chloride (Li-SOCl2) is a non-rechargeable type of lithium battery chemistry, featuring a nominal voltage of 3.5-3.6 volts and excellent capacity.

Lithium Thionyl Chloride (Li-SOCl2) chemistry is commonly used in cylindrical lithium batteries, featuring a broad temperature range of operation, very low self-discharge rate with a shelf life of up to 10+ years, etc. However, Lithium Thionyl Chloride (Li-SOCl2) batteries also feature relatively low discharge currents - even high-rate Lithium Thionyl Chloride (Li-SOCl2) batteries feature relatively low discharge currents when compared with some other lithium battery chemistries.

panasonic cr2032 w200pxLithium Manganese Dioxide (Li-MnO2) is a non-rechargeable type of lithium battery chemistry, featuring a nominal voltage of 3.0 volts, an open-circuit voltage of 3.3 volts, and a cutoff voltage of 2.0 volts.

The most common label of the Lithium Manganese Dioxide (Li-MnO2) battery is "CR", for example, "CR2032".

Lithium Manganese Dioxide (Li-MnO2) chemistry is the most popular lithium battery chemistry, commonly used in button/coin cells and cylindrical batteries.

Lithium Manganese Dioxide (Li-MnO2) chemistry features stable output voltage, good capacity, low self-discharge rate, wide temperature operating range, etc.

Lithium Carbon Monofluoride (Li-(CF)x) is a non-rechargeable type of lithium battery chemistry, featuring a nominal voltage of 3.0 volts (older batteries 2.8 volts), a cutoff voltage of 2.0 volts (older batteries 2.25 volts), an open-circuit voltage of 3.1 volts.

The most common label if the Lithium Carbon Monofluoride (Li-(CF)x) battery is "BR", for example, "BR2032".

Lithium Carbon Monofluoride (Li-(CF)x) chemistry features a very low self-discharge rate, good capacity, wide temperature operating range, but also a relatively small maximum allowed discharge current.

Lithium Carbon Monofluoride (Li-(CF)x) batteries are used as CMOS, memory, and backup batteries, and for applications where stable voltage over a longer period of time is required, with low discharge currents.

Manganese Dioxide Lithium (MnO2-Li) is a rechargeable type of lithium battery chemistry, featuring a nominal voltage of 3.0 volts.

The most common label of Manganese Dioxide Lithium (MnO2-Li) is "ML", for example, "ML2032".

ML batteries are directly compatible with CR type of lithium batteries and are used in some devices with solar cells used for charging (wireless keyboards, for example).

Vanadium Lithium rechargeable batteries are very similar to Manganese Dioxide Lithium rechargeable batteries, sharing the same nominal voltage of 3.0 volts.

Vanadium Lithium rechargeable batteries are labeled as "VL", for example, "VL2032".

panasonic ctl920f w200pxCobalt Titanium Lithium rechargeable batteries, also known as "CTL" batteries, feature a nominal voltage of 2.3 volts, a cutoff voltage of approximately 2.0 volts.

CTL batteries are mostly used as rechargeable batteries (or accumulators, capacitors) in wrist watches, with the most popular models being CTL621 (6.8 x 2.1 mm, 3.6 mAh), CTL920 (9.5 x 2.0 mm, 7.7 mAh), and CTL1616 (16.0 x 1.6 mm, 13 mAh).

Lithium Titanium rechargeable batteries are also known as "MT" watch batteries.

Lithium Titanium rechargeable batteries feature a nominal voltage of 1.5 volts and are not compatible with other types of lithium rechargeable batteries.

The most popular MT batteries are MT516 (5.8 x 1.6 mm, 1.8 mAh), MT621 (6.8 x 2.1 mm, 2.5 mAh), and MT920 (9.5 x 2.0 mm, 5.0 mAh) battery.

Lithium Manganese Oxide (LiMn204, IMR) rechargeable batteries feature a nominal voltage of 3.6-3.7 V per cell. Their maximum charging voltage is 4.2 volts.

IMR batteries commonly have a relatively smaller capacity but are capable of delivering large currents.

Lithium Manganese Nickel (LiNiMnCoO2, INR) rechargeable batteries are very similar to IMR batteries, with a nominal voltage of 3.6-3.7 volts per cell and a maximum charging voltage of 4.2 volts.

INR batteries can provide strong currents, with somewhat smaller capacity.

Lithium Iron Phosphate (LiFePO4, IFR) rechargeable batteries feature a nominal voltage of 3.2-3.3 V per cell. Their maximum recommended charging voltage is 3.5-3.6 V.

IFR batteries are relatively safe lithium rechargeable batteries, often used in electric bikes/scooters and similar vehicles, in marine and off-the-grid applications, and similar.

Lithium Cobalt Oxide (LiCoO2, ICR) rechargeable batteries feature a nominal voltage of 3.6 - 3.7 V per cell. Their maximum recommended charging voltage is 4.2 V.

ICR batteries commonly have higher capacities, but maximum allowed currents are often limited to just a few C.

Of course, there are other rechargeable lithium battery chemistries available like Lithium Nickel Cobalt Oxide (LiNiCoO2), Lithium Nickel Cobalt Aluminum Oxide (LiNiCoAlO2), etc., but they are not as common as other types of lithium battery chemistries.


These are the most common rechargeable and non-rechargeable lithium battery chemistries on the market.

But don't worry, new chemistries are emerging every now and then, offering new features and improvements over older chemistries.

Amazon Search:

- Lithium AA Battery

- Lithium 3V AA Battery

- Rechargeable Lithium AA Battery

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.