Panasonic BK-3MCCA8BA Eneloop AA 2000mAh 2100 Cycle 8 Pack
- 8-pack
- AA Ni-MH
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A 100mAh 3.70V lithium polymer replacement cell measuring 24.00 x 15.50 x 4.20mm for Fitbit Surge and Yamaha PLC devices
This 100mAh lithium polymer cell matches the original 3.70 volt specification for the FitBit Surge activity tracker. The compact 24.00 x 15.50 x 4.20mm form factor fits the internal battery compartment without modification. It restores runtime for owners whose factory pack no longer holds a charge.
The pack uses the same connector and physical footprint as the original, so no adapter cables or chassis alterations are needed. Replacing the cell frees the wearable from tethered charging and returns it to untethered daily use. Builders who need a higher capacity or a different voltage should look elsewhere.
The unit includes an integrated protection circuit guarding against overcharge, over-discharge, over-voltage and short-circuit events. ISO9001, RoHS and CE certifications confirm compliance with recognised safety and environmental standards. Shock-absorbing foam packaging protects the cell during transit.
Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | Cameron sino |
| Model name | FitBit Surge |
| Product type | Lithium polymer |
| Power | |
| Battery type | Lithium polymer |
| Battery capacity | 100 mAh |
| Battery voltage rating | 3.7 V |
| In the box | |
| Battery pack size | 24 × 15.5 × 4.2 |
Capacity is rated at 100mAh at 3.70V; actual runtime depends on the device's current draw.
Normal operation stays within the 60°C storage limit; avoid charging above 60°C.
It matches the original Yamaha KR4-M4251-000 connector; verify part number before installing.
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