Alcatel IP Touch 310 Compatible Battery 3.7V 1800mAh Li-ion

Alcatel IP Touch 310 / 610 Series — 3.7V Li-ion Replacement Battery

This 3.7V 1800mAh Li-ion battery replaces the original pack in the Alcatel IP Touch 310, IP Touch 610, IP Touch Wireless-LAN 310, and IP Touch Wireless-LAN 610 cordless handsets. It fits the same bay, uses the same connector orientation, and runs at the rated voltage these handsets expect from their charging circuits.

• IP Touch 310 and 610 platform fit: Both the standard and Wireless-LAN variants share the same battery bay dimensions and 3.7V single-cell Li-ion architecture. The connector pinout and BMS voltage thresholds are identical across the four listed models, so one battery services the full range.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the IP Touch platform. The BMS accepted charge from the base station without fault, held the 3.7V nominal rail through transmission bursts, and cut off cleanly at the low-voltage threshold without triggering a handset error state.
• First-charge protocol for Li-ion cordless packs: Place the handset in the base immediately after installing the battery and leave it for a full uninterrupted charge before making calls. Li-ion cells shipped at partial state-of-charge need one complete cycle to let the BMS calibrate its capacity tracking accurately.

Why the IP Touch 310 loses range when the battery ages

The DECT radio module in the IP Touch 310 draws a short high-current burst each time it transmits. An aged or low-capacity Li-ion cell sags in voltage during that burst, dropping below the threshold the RF front-end needs to maintain full transmit power. The handset compensates by reducing output, which cuts effective range before the battery shows any other sign of failure. Replacing the cell restores the voltage headroom the transmitter needs to hold a stable link across the office.

Base station shows no charging activity after fitting a new battery

Li-ion cells shipped from storage often sit at around 3.0–3.2V. Some IP Touch base stations read a voltage this low as a fault condition and refuse to initiate a charge cycle. If the charging indicator does not activate within a few minutes of seating the handset, remove the battery, wait 30 seconds, and re-seat it — this resets the base station's detection circuit. If the problem persists, check that the battery contacts on the handset are clean and making firm contact, then re-seat and confirm voltage reads at least 3.0V before placing in the base.