Nortel 2210 Cordless Phone Compatible Battery 3.6V 700mAh

Nortel 2210 / NetLink H340 — 3.6V Ni-MH Replacement Battery

This is a 3.6V, 700mAh Ni-MH replacement battery for Nortel cordless handsets including the 2210, 2212, NetLink H340, and NTTQ69 series. It slots directly into the handset battery compartment and restores power to handsets that no longer hold a charge. Voltage and cell count match the original pack specification.

• 2210, 2212, NetLink H340, and NTTQ69 compatibility: These handsets share the same 3.6V three-cell Ni-MH architecture and connector footprint. The base station charging circuit targets this voltage range, so the same pack works across all listed models without adjustment.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a Nortel base station. The charging circuit accepted the pack without error and the BMS reached full charge cutoff cleanly on each cycle.
• First-charge protocol for Ni-MH cordless handsets: After installing, place the handset in the base for a full 16 hours before use. Ni-MH cells in cordless phones need this slow initial charge to reach rated capacity — cutting it short will leave the pack at 60–70% of its 700mAh ceiling for the first several cycles.

Base station error light on a new Ni-MH pack

Nortel base stations use a voltage threshold check at the start of every charge cycle. A new Ni-MH pack shipped in storage can sit below 3.0V — enough to trigger the base's fault light before charging even starts. This is not a faulty battery. Place the handset in the base and leave it undisturbed for at least 30 minutes. The base will trickle current into the pack until it clears the acceptance threshold, then switch to normal charge mode.

Range dropping mid-call after a battery swap

DECT handsets regulate transmit power based on available voltage from the battery. When a Ni-MH pack hasn't been fully conditioned, voltage sags under the RF load of an active call — the handset reads this as a low-battery state and pulls back transmit power, shrinking range. This typically resolves after three to five full charge and discharge cycles, once the cells reach their rated 700mAh capacity. If range is still short after five cycles, check that the handset is fully seated in the base each time — a partial connection delivers reduced charge current.