About this replacement
Universal 2/3AAA x 3 — 3.6V Ni-MH Replacement Battery
This is a 3.6V, 300mAh Ni-MH replacement battery in the 2/3AAA x 3 configuration. It fits cordless DECT phone handsets that use this three-cell pack arrangement. If your handset no longer holds a charge or cuts out mid-call, this battery replaces the degraded original cell pack.
- 2/3AAA x 3 configuration: Three 2/3AAA cells wired in series produce the 3.6V rail that DECT handset electronics and RF transmitters require. The physical layout and connector position match the original pack, so it seats correctly in the handset battery compartment.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on a DECT handset base station and confirmed the BMS accepted charge without triggering an error state. Voltage at full charge measured within the expected range for Ni-MH chemistry.
- First-charge protocol for Ni-MH cordless packs: After installing, place the handset in the base and leave it undisturbed for a full 16 hours before first use. Ni-MH cells in storage arrive partially discharged — a slow first charge lets each cell reach rated capacity and sets the baseline for subsequent cycles.
Talk time shorter than the original battery after replacement
Ni-MH cells do not deliver rated capacity on the first cycle out of the box. Capacity builds over three to five full charge-and-discharge cycles as the cell chemistry stabilises. If talk time is noticeably short after the first day, run the handset until the low-battery alert sounds, then return it to the base for a full charge. Repeat this three times and capacity will reach its rated 300mAh level.
Base station showing no charge or error light on a new pack
A Ni-MH pack that has been in storage can drop to a voltage level the base station charger circuit reads as a fault condition rather than a discharged battery. The base may show an error light or simply refuse to charge. Remove the handset, wait 30 seconds, and reseat it firmly — some base chargers retry initialisation on reconnect. If the error persists, check that the battery contacts on both the handset and the pack are clean and making full contact, then reseat again.