About this replacement
Dancall Dect 8200 / 8400 / 8500 / 8600 — 3.6V Ni-MH Replacement Battery (0458.081)
This is a 3.6V, 700mAh Ni-MH replacement battery for Dancall Dect 8200, 8400, 8500, and 8600 cordless handsets. It replaces OEM part numbers 0458.081, T198, and T198-U1. The battery slots into the handset battery compartment and connects to the base station charging circuit as the original did.
- Dect 8200 / 8400 / 8500 / 8600 series fit: These four handset models share the same 3.6V single-cell Ni-MH pack format, connector pitch, and physical dimensions — 48.76 × 32.94 × 11.32mm — so one battery covers all of them without modification.
- Bench tested on actual hardware: We cycled this pack through the Dancall base station charging circuit and confirmed the BMS accepted the charge handshake without triggering an error light. Cell voltage held within expected Ni-MH charge termination range under standard trickle.
- First-install charge cycle on Dancall handsets: After installing, seat the handset in the base and leave it for a full 16 hours before first use. Ni-MH cells from storage ship partially discharged, and the Dancall base uses a slow trickle rate — a shortened first charge will leave capacity on the table for the first several cycles.
Talk time shorter than original battery after the first few charges
Ni-MH cells need three to five full charge-discharge cycles before they reach rated capacity. A fresh pack from storage has not been conditioned, so the first cycle almost always delivers less talk time than expected. Each subsequent full cycle builds capacity toward the rated 700mAh. If talk time is still noticeably short after five full cycles, check that the handset is fully seated in the base — a poor contact on the charging pins will cause the base to trickle at a lower current than intended.
Base station shows no charge light after battery swap
Dancall bases use voltage sensing to confirm a battery is present before starting the charge cycle. A pack that has sat in storage can drop below the 3.0V detection threshold, which causes the base to show no activity or an error indicator. Remove the handset, wait 30 seconds, and re-seat it firmly — this resets the base detection circuit. If the charge light still does not appear, measure the battery terminals with a multimeter; a reading below 2.8V means the pack needs a short boost charge from an external Ni-MH charger at 100mA before the base will accept it.