GE AN8526 Cordless Phone Replacement Battery 3.6V 600mAh

GE 2101 / 2103 Series — 3.6V Ni-MH Replacement Battery (AN8526)

This is a 3.6V, 600mAh Ni-MH battery for GE cordless phone models 2101, 2103, 2184, 2189, and over 38 additional handsets that share the same AN8526 / BT10 specification. When the original pack degrades, the handset loses charge rapidly and drops off the base faster than expected. This replacement restores wireless operation to that handset.

• 2100 / 2180 series compatibility: These GE handsets run a shared 3.6V three-cell NiMH pack with an identical footprint and connector pinout. The BMS on each model expects the same charge acceptance curve, so one battery fits across the entire group without modification.
• Bench tested on actual hardware: We cycled this pack through the GE base station charge circuit and confirmed the NiMH trickle phase terminated correctly at full cell voltage. The BMS accepted the pack without triggering a charge-fault state on any test unit.
• First-charge protocol for NiMH handsets: Place the handset in the base cradle for a full 16 hours before taking it off-charger for the first time. NiMH cells at rest from storage carry a suppressed capacity ceiling — the slow first charge breaks this in and brings the pack to its rated 600mAh ceiling.

Talk time shorter than the original battery after first three cycles

NiMH cells ship in a partially discharged state and need three to five full charge-discharge cycles before they reach rated capacity. On the first cycle, you may see noticeably less talk time than the original pack delivered. This is normal cell behaviour, not a defect. By cycle four or five, capacity stabilises at the rated 600mAh ceiling.

Base station showing no charge or error light on a new pack

A NiMH pack that has been sitting in storage can drop to a voltage level the base station's charge circuit treats as a fault condition rather than a chargeable cell. The base reads the low voltage as a dead or incompatible pack and refuses to start the charge cycle. Remove the handset, hold the power key for five seconds to fully discharge any residual circuit voltage, then reseat it firmly in the cradle. If the base still shows an error, use a standalone NiMH charger to bring the pack above 3.0V before returning it to the cradle.