RCA 2-5110 Cordless Phone Compatible Battery 3.6V 700mAh

RCA 2-5110 — 3.6V Ni-MH Replacement Battery (5-2683)

This is a 3.6V, 700mAh Ni-MH rechargeable battery for the RCA 2-5110 cordless phone handset. It replaces OEM part number 5-2683 and restores power to the handset for normal talk and standby use. Physical dimensions are 46.00 × 31.00 × 10.50mm — confirm these against your existing pack before ordering.

• RCA 2-5110 handset fit: The 2-5110 uses a single-cell Ni-MH pack at 3.6V with a low-current charge circuit in the base station. The connector orientation and cell count match this handset's battery bay directly. No modification needed.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on a cordless phone test rig. The cell voltage held within the base station's acceptance window, and the charge circuit accepted the pack without error on the first insertion.
• First-charge protocol for Ni-MH handsets: Place the handset in the base cradle for a full 16 hours before first use. Ni-MH cells shipped in storage state will not reach rated capacity on a standard short charge — the slow first cycle is what brings the pack to full 700mAh capacity.

Talk time shorter than expected after swapping in a new Ni-MH pack

Ni-MH cells lose a portion of their usable capacity during storage and shipping. On the first few cycles, the pack will deliver noticeably less talk time than the rated 700mAh suggests. This is not a fault — it is a chemistry characteristic. Run three to five full charge and discharge cycles and talk time will climb toward the rated figure each time.

Base station shows no charge light or an error indicator after fitting the new battery

A Ni-MH pack that has sat in storage drops below the voltage floor the base station expects to see when a handset is docked. The base charge circuit reads the low voltage as a fault condition and refuses to start charging. Remove the handset, wait 10 seconds, and re-seat it firmly — a second insertion often triggers the charge circuit once the base re-samples the voltage. If the error persists, check that the handset contacts are clean and making full contact with the cradle pins.