AudioVox AT14 Cordless Phone Replacement Battery 3.6V 600mAh

AudioVox AT14 — 3.6V Ni-MH Replacement Battery

This is a 3.6V, 600mAh Ni-MH rechargeable battery for the AudioVox AT14 cordless phone handset. It replaces the original pack when the handset no longer holds charge or drops calls due to voltage sag. Dimensions are 40.00 x 42.00 x 13.50mm — confirm against your existing pack before ordering.

• AT14 handset fit: The AT14 runs a 3.6V single-cell NiMH architecture common to compact DECT handsets. The connector orientation and cell footprint match the original factory pack, so the base station charging circuit sees the same voltage profile it expects.
• Bench tested on actual hardware: We cycled this pack through full charge and discharge on a NiMH-compatible analyser. The BMS accepted charge without thermal event, and terminal voltage held above 3.4V through the discharge curve.
• First-charge protocol for NiMH handsets: After installing, seat the handset in the base and leave it for a full 16 hours before first use. NiMH cells shipped in storage state need a slow initial charge to reach rated capacity — skipping this step will leave the pack under-formed and talk time will feel short from day one.

Range drops mid-call after installing a new NiMH pack

DECT transmit power is drawn in short high-current bursts. A new or under-conditioned NiMH pack has higher internal resistance than a fully cycled one, causing voltage to sag during those RF bursts. When the handset voltage dips too far, the radio cuts back transmit power to protect the circuit — and range suffers. Run three to five full charge-discharge cycles to lower internal resistance and the range issue typically resolves without any further changes.

Base station shows no charge light after swapping the battery

A NiMH pack that has sat in storage can arrive with a terminal voltage below the threshold the AT14 base station uses to confirm contact and begin charging. The base interprets this as no battery present and shows no indicator. Remove the handset, hold the battery contacts against a NiMH-compatible charger externally for 10–15 minutes until voltage reaches at least 3.0V, then re-seat it in the base. The base should recognise the pack and the charge light should activate within 60 seconds.