Description
Description
VARTA 55615603940 is a rechargeable Nickel-Metal Hydride (NiMH) button cell battery engineered for PCB mounting. With a nominal voltage of 3.6 V and a rated capacity of 150 mAh, it delivers reliable backup power for memory, real-time clocks (RTC), and small electronics. Its robust design includes built-in safety features, low self-discharge, and consistent voltage output over use cycles.
Key Features & Specifications
|
Spec |
Value |
|
Battery Type |
Nickel-Metal Hydride (NiMH) |
|
Nominal Voltage |
3.6 V |
|
Capacity |
150 mAh (typical) |
|
Mounting / Terminals |
PCB pins (through-hole) |
|
Dimensions (L × W × H) |
26.8 mm × 15.3 mm × 17.7 mm |
|
Weight |
~15 g |
|
Max Discharge Current |
280 mA continuous |
|
Cycle Life |
~500 full charge/discharge cycles |
|
Self-Discharge |
~20% at room temperature after 1 year |
|
Operating Temperature |
–20 °C to +65 °C (discharge) |
|
Charging Temperature |
0 °C to +65 °C |
|
Overcharge / Safety |
Built-in safety vent, overcharge capability via patented electrode design |
|
RoHS / Hazardous Substances |
No SVHC listed (as of 25-Jun-2020) |
Applications & Benefits
- Backup and memory retention — Ideal for RTC, SRAM, and memory backup in devices where power loss must be bridged.
- Sensor networks & embedded systems — Suitable for low-current, compact devices that require rechargeability.
- Consistent performance — Provides stable voltage output under load, minimizing system errors.
- Durable & safe — Built to withstand overcharge and includes safety venting for abuse protection.
- Long lifespan — Typically supports ~500 cycles when used and maintained within specifications.
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