Philips Aloris 5100 Cordless Phone Compatible Battery 3.6V 600mAh

Philips Aloris 5100 / Xalio 6100 Series — 3.6V Ni-MH Replacement Battery (C39453-Z5-C193)

This is a 3.6V, 600mAh Ni-MH battery for Philips cordless DECT handsets. It fits the Aloris 5100, Aloris 5200, Xalio 6100, Xalio 6400, and 27 additional models sharing the same pack format. It replaces OEM part C39453-Z5-C193 directly.

• Aloris and Xalio handset compatibility: These models share the same 3.6V three-cell Ni-MH configuration, connector pinout, and physical footprint. The base station charges via contact pads at a fixed low-current rate, so voltage and cell count must match exactly — this pack does.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a Philips DECT base. The BMS accepted the NiMH voltage profile without error, and the handset registered full charge status after the first 16-hour conditioning cycle.
• First charge after installation: Place the handset in the base cradle for a full 16 hours before taking it off. NiMH cells shipped in storage state need a slow, complete first charge to activate all the capacity. Cutting this short leaves you with noticeably shorter talk time from the start.

Talk time shorter than original battery after replacement

NiMH cells arrive from storage partially discharged. A single charge cycle does not fully activate the chemical capacity in a new pack. The Philips base station delivers a trickle charge — it is not a fast conditioner. Run three to five full charge-and-use cycles before judging capacity; most users see rated talk time restored by cycle four.

Base station showing no charge or error light after swap

When a NiMH pack sits in storage, its open-circuit voltage drops below the threshold some Philips bases expect before beginning a charge cycle. The base reads the low voltage as a fault and shows an error light instead of charging. Remove the handset, leave it off the base for 30 seconds, then reseat it firmly — the base re-samples the pack voltage on contact. If the error persists, check that the contact pads on both the handset and cradle are clean and making solid contact.