DeTeWe 23-0022-00 Cordless Phone Replacement Battery 3.6V 550mAh

DeTeWe Cordless Phone — 3.6V Ni-MH Replacement Battery (23-0022-00)

This is a 3.6V, 550mAh Ni-MH replacement battery for DeTeWe cordless DECT handsets using OEM part number 23-0022-00 or E0062-0068-0000. It fits the handset bay directly and restores full wireless operation to the phone system. Swap it in when the original pack no longer holds a charge through a typical call or standby period.

• DECT handset compatibility: DeTeWe handsets in this range share a common 3.6V NiMH cell format with a matched connector footprint and physical dimensions of 47.52 × 34.18 × 6.58mm — the voltage rail and bay geometry are fixed across these models, so the pack seats and charges without modification.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a DECT handset platform. The NiMH cells accepted charge current from the base station without triggering a fault, and voltage held stable through transmit bursts during the RF handshake phase.
• First charge after installation: Place the handset in the base and leave it for a full 16 hours before first use. NiMH cells in cordless phone packs arrive partially discharged from storage and need a slow initial charge cycle to reach rated 550mAh capacity — a short first charge will result in reduced talk time.

Base station charging error on a freshly installed NiMH pack

DeTeWe base stations use a delta-V detection method to confirm a battery is accepting charge. A new NiMH pack that has sat in storage can measure below the base station's acceptance threshold voltage, causing the base to flag a charge error or show no charge indicator at all. This is a storage self-discharge issue, not a fault with the battery or base. Seat the handset firmly in the cradle and leave it for 30 minutes — if the charge indicator still shows an error, remove the handset, wait 60 seconds, and reseat it to trigger a fresh charge cycle.

Range drops noticeably mid-call after fitting the new pack

DECT transmit power is sustained by the handset drawing current from the battery during RF bursts. If the NiMH cells have not completed their first few conditioning cycles, internal resistance stays elevated and voltage sags under that RF load — the handset compensates by reducing transmit power, which shrinks effective range. This is not a faulty battery; it corrects itself across cycles three to five as the cells reach full capacity. Run three full charge-and-use cycles with the handset before assessing range performance, and confirm cell voltage reads at or above 3.6V at the start of each session.