Quasar QT2000 Cordless Phone Replacement Battery 3.6V 600mAh

Quasar QT2000 / QT3000 Series — 3.6V Ni-MH Replacement Battery

This is a 3.6V, 600mAh Ni-MH battery for Quasar cordless phone handsets. It fits the QT2000, QT2010, QT3000, and QT3200 series, along with additional compatible models. The pack slots directly into the handset battery compartment and connects to the onboard charging circuit.

• QT2000 / QT3000 series fit: These models share the same 3.6V three-cell Ni-MH battery format, identical footprint (42.64 × 30.00 × 14.45mm), and the same base station charge voltage rail. One pack covers the full range.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a Quasar-compatible base station. The handset accepted the charge signal without error, and the BMS held stable voltage across the full discharge curve.
• First-charge protocol for Ni-MH handsets: After installing, seat the handset in the base and leave it for a full 16 hours before first use. Ni-MH cells in cordless phones need a slow initial charge to reach rated capacity — skipping this step cuts into talk time from day one.

Talk time shorter than expected after battery swap

Ni-MH cells don't deliver full rated capacity straight out of the packaging. The first two or three charge cycles typically produce noticeably shorter talk time than the original battery. This is a chemistry behaviour, not a fault — the cells need cycling to reach their full 600mAh capacity. By cycle three to five, talk time should match or exceed the worn-out pack you replaced.

Base station charge light not coming on after fitting new pack

Ni-MH batteries can sit in storage for months and drop to a voltage level that some base stations won't accept as a valid charge signal. The base's charging circuit expects to see a minimum threshold before it switches on the charge light. If the handset shows no charge activity, remove it from the base, wait 10 seconds, and reseat it firmly. If the light still doesn't come on, check that the handset contacts and base contacts are clean and making full metal-to-metal contact — a thin film of oxidation blocks the circuit.