ML (Coin Type Lithium Manganese Dioxide Rechargeable Battery)
This battery employs specially treated manganese dioxide for the positive material and a lithium-aluminum compound for the negative material. A specially formulated organic electrolyte is also used, yielding excellent discharge characteristics with low self-discharge.
Approx. 2.5V operating voltage
The operating voltage is about twice that of nickel cadmium rechargeable batteries. Displays a high discharge voltage of 2.8 V when at 10% of nominal capacity (depth of discharge is 10% or less), when charged at 3.0 to 3.3 V.
Superior charge/discharge characteristics (Fig. 2)
Achieves 1,000 cycles of discharging to 10% of nominal capacity (Depth of discharge = 10%). The total discharge capacity is quite high at 100 times nominal capacity. (shipped fully charged)
Wide -20 deg. C to 60 deg. C usable temperature range
Demonstrates stable operating voltage in temperatures as low as -20 deg. C and as high as 60 deg. C.
Low self-discharge and superior leakage resistance (Fig. 3)
Self-discharge at 20 deg. C is no more than 2% per year. Supplies a nominal capacity of about 95% even when stored at 20 deg. C for roughly five years (according to accelerated test conducted by Maxell). And since organic electrolyte is used, the battery has superior leakage resistance.
Excellent floating characteristics (Fig. 4)
A specially formulated organic electrolyte is employed to provide stable discharge characteristics even if charged for a year at 3.3 V at 20 deg. C (according to accelerated test conducted by Maxell).
Excellent high rate discharge characteristics (Fig. 5)
Maxell ML (lithium manganese dioxide rechargeable) batteries are available only for equipment manufacturers as a built-in part. Therefore, Maxell does not supply these batteries for replacement directly to users of equipment with these batteries. When built-in ML batteries need to be replaced, please contact your equipment manufacturer. If you are planning to use Maxell ML batteries in your equipment as a built-in part, please contact Maxell.
UL Recognized Components
The coin type lithium manganese dioxide rechargeable battery is a UL (Underwriters Laboratories Inc.) recognized component. (Technician Replaceable)
Recognized models: ML2032, ML2016
Certification number: MH12568
- -Mobile Phones
- -OA Machines (Fax, Copiers, Printers)
- -Notebook PCs
- -Desktop PCs
- -Digital Still Cameras
- -Portable CD/MD Players
- -Medical Instruments, Cash Registers
- -FA Instruments (Measuring Instruments, Onboard Microcomputers, Sensors)
- -Electronic Meters (Water, Gas, Electricity)
- Nominal capacity indicates duration until the voltage drops down to 2.0V when discharged at a nominal discharge current at 20 deg. C.
- Dimensions and weight are for the battery itself, but may vary depending on the shape of terminals or other factors.
- Data and dimensions are not guaranteed. For further details, please contact us at your nearest Maxell office.
- Contents on this website are subject to change without notice.
Principle and Reactions
The coin type lithium manganese dioxide rechargeable battery is a 3V battery using specially treated manganese dioxide for the positive mateiral, a lithium-aluminum compound for the negative material and a specially formulated organic electrolyte.
Fig. 1 Charge Property
Fig. 2 Low Self-discharge
Fig. 3 Overcharge Characteristics
Fig. 4 High Rate Discharge Characteristics
If misused, this battery may deform, leak (the liquid inside the battery may leak to the outside), generate heat, explode, or ignite.
Since such misuse may cause injury or equipment failure, please be sure to read and observe [Warnings and Cautions].