Sanyo 60AAAH3BJ22 Cordless Phone Replacement Battery 3.6V 700mAh

Sanyo 60AAAH3BJ22 / CLT2402 / CLT2412 — 3.6V Ni-MH Replacement Battery

This is a 3.6V, 700mAh Ni-MH battery pack for Sanyo cordless phone handsets including the 60AAAH3BJ22, CLT2402, CLT2403, CLT2412, and 22 additional compatible models. It replaces the original cell when the handset can no longer hold a charge through a full call or standby period. Dimensions are 45.90 x 31.20 x 10.70mm — measure your existing pack before ordering if your model isn't listed.

• CLT-series handset fit: The CLT2402, CLT2403, and CLT2412 share the same 3.6V three-cell NiMH configuration and connector orientation. Swapping chemistry or cell count breaks the base station's charge termination logic, so the Ni-MH spec here is not interchangeable with Li-ion alternatives.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a cordless phone base station. The NiMH cells accepted trickle charge at the base's termination voltage without triggering an error state, and voltage held stable under simulated talk-load draw.
• First charge after installation: After fitting this battery, seat the handset in the base and leave it for a full 16 hours before first use. NiMH cells shipped in a partial state need that slow initial charge to reach rated 700mAh capacity — shorter charges in the first few cycles will make talk time appear lower than expected.

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

NiMH batteries lose voltage during storage. If a pack sits in a warehouse for several months, its resting voltage can drop below the threshold the base station uses to confirm a valid battery is present. Some Sanyo bases interpret this low-voltage state as a missing or faulty cell and refuse to begin charging. The fix is to briefly charge the pack externally — or in a second compatible handset that will accept a deeply discharged NiMH — to bring the voltage above the base's acceptance floor, typically around 3.0V, before seating it in the primary handset.

Range drops noticeably during calls after a battery swap

Reduced range after fitting a new battery usually points to voltage sag under RF transmit load, not a faulty battery. When a NiMH pack hasn't completed its first conditioning cycles, internal resistance is higher, and the cell voltage dips when the handset's radio fires. That voltage drop causes the transmitter to back off power, cutting effective range. Run three to five full charge-and-use cycles — not just top-up charges — and internal resistance will drop to operating spec, restoring normal transmit voltage and range.