Uniden 3101 Cordless Phone Replacement Battery 2.4V 700mAh

Uniden 3101 / 3111 / 6030 Series — 2.4V Ni-MH Replacement Battery (BBTG0671011)

This is a 2.4V, 700mAh Ni-MH battery that fits the Uniden 3101 and a range of compatible cordless handsets. It replaces OEM part numbers including BBTG0671011, BT1011, BT-1018, and BT-694. If your handset no longer holds a charge or dies quickly off the base, this is the direct fix.

• 3101, 3111, 6030, and 6031 handset compatibility: These models share the same 2.4V NiMH cell format, connector orientation, and physical footprint. The base station charges through the same contact points, so no adapter or wiring change is needed.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Uniden handset base. The BMS accepted charge within the first 30 minutes, and the cell reached stable capacity by the third full cycle.
• First-charge protocol for NiMH cordless handsets: After installing, seat the handset in the base for a full 16 hours before first use. NiMH cells ship partially discharged, and skipping this slow initial charge will reduce the capacity you see in early use — it is not a fault with the battery.

Talk time shorter than expected after replacing the battery

NiMH cells need three to five full charge-discharge cycles before they reach rated capacity. A brand-new cell that ships at low state-of-charge will not deliver full talk time on the first cycle — this is chemistry, not a defect. Each subsequent full charge cycle builds the cell's internal capacity ceiling. By cycle five, most users see talk time consistent with the original battery when it was new.

Base station showing no charge light after battery swap

If the base does not show a charging indicator after you install the new battery, the cell voltage is likely below the base station's acceptance threshold. This happens when a NiMH cell has self-discharged during storage. Remove the handset, wait 10 seconds, and reseat it firmly so the charge contacts are fully engaged. If the light still does not appear, measure the battery voltage — any reading above 1.8V total means the base should accept it; below that, leave it seated for 30 minutes and the trickle circuit will usually recover it.