Philips CP200 Cordless Phone Replacement Battery 4.8V 1300mAh

Philips CP200 / TD9200 Series — 4.8V Ni-MH Replacement Battery

This 4.8V, 1300mAh Ni-MH battery replaces the original handset battery in the Philips CP200, CP200S, TD9200, and TD9260 cordless phones. It restores full handset operation when the original pack can no longer hold a usable charge. Dimensions are 56.50 x 50.38 x 14.56mm — confirm these against your existing pack before ordering.

• CP200 and TD9200 series fit: These models share the same handset battery bay dimensions, connector orientation, and 4.8V NiMH voltage rail. The base station charges at a trickle rate matched to this cell chemistry, so swapping to a different voltage or chemistry would confuse the base charger circuit.
• Bench tested on actual hardware: We ran this pack through the base station charge cycle and monitored cell voltage at termination. The BMS in the base correctly detected end-of-charge and stopped topping without overrun on all test units.
• First charge after installation: Place the handset in the base for a full 16 hours before first use. NiMH cordless phone packs ship in partial-charge state and need a slow initial charge cycle to reach rated 1300mAh capacity — skipping this step typically results in noticeably short talk sessions for the first few uses.

Base station showing no charge light after fitting new NiMH pack

NiMH cells sitting in storage drop below the voltage threshold some Philips base stations use to confirm a valid battery is seated. When the resting voltage is too low, the base withholds charge current entirely rather than triggering a recovery charge. Remove the handset, wait 30 seconds, and reseat it firmly — full contact on the charging pins is critical. If the charge indicator still doesn't activate, check that cell voltage at the terminals is at or above 3.6V before placing in the base.

Talk time noticeably shorter than the original battery for the first week

This is a NiMH conditioning issue, not a faulty cell. Fresh NiMH packs need three to five full charge-and-use cycles before the crystalline structure inside the cells reaches full capacity. Each cycle should end with the handset returned to the base until the charge indicator clears. By cycle four or five, capacity stabilises at the rated 1300mAh and talk time matches expectations.