Estry CS8001 Ni-MH standard battery 3.6V 600mAh

Direct replacement for Pactel cordless handsets

The Estry CS8001 is a new nickel-metal hydride battery rated at 3.6 volts and 600 milliampere-hours. It matches the original specifications for Pactel models CS8001, CS8200, CS8000, CS8410, 2282504 and CS8400. The pack measures 42.57 by 30.2 by 14.43 millimetres and weighs 77.4 grams. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits.

Ni-MH chemistry limits runtime and self-discharge

Nickel-metal hydride cells deliver 2.16 watt-hours at the rated voltage, which suits low-drain cordless phones but cannot support high-current devices. The chemistry self-discharges faster than lithium types, so capacity drops if the handset sits unused for weeks. No memory-effect cycles are required, yet a full charge before first use helps reach rated capacity. The pack carries ISO 9001, RoHS, CE and UN 38.3 certifications.

Verify model number and connector before ordering

Check the label on your existing battery or handset to confirm it lists one of the compatible model numbers above. Ensure the two-pin connector orientation and wire length match the original pack so it seats correctly in the battery compartment. The physical dimensions must fit the handset cavity without forcing the cover. Buyers needing higher capacity or lithium chemistry should look elsewhere.