About this replacement
Sony Cyber-shot DSC-T110P / TX100VR Series — 3.7V Li-ion Replacement Battery (NP-BN1)
This is a 3.7V, 630mAh Li-ion cell compatible with the Sony Cyber-shot DSC-T110P and over 180 other Cyber-shot compact camera models. It replaces the OEM NP-BN / NP-BN1 battery. The cell fits the slim body of the T110 and TX-series cameras without modification to the battery door or contacts.
- T110 and TX-series fit: These models share the NP-BN1 form factor — same 40.50 × 35.00 × 4.70mm footprint, same contact layout, and the same BMS handshake voltage required by the camera body's charge controller. Swapping between models in this family works without any adapter.
- Bench tested on actual hardware: We ran this cell in a DSC-T110 body and a DSC-TX100V. The BMS accepted the cell on first insertion in both units. Charge termination triggered correctly at 4.2V via both the OEM charger and the camera's internal charge circuit.
- First charge cycle on the T110: Run one full charge inside the camera body before heavy use. The T110's battery indicator maps remaining capacity to the cell's discharge curve — it does this calibration on the first in-body charge cycle, so skipping it causes the indicator to read inaccurately for the first several sessions.
Flash not fully recycling between shots on a new NP-BN1 cell
The T110's flash capacitor pulls a sharp burst of current each time it recharges after firing. A new cell that hasn't completed a full charge cycle may show slightly elevated internal resistance, which causes the capacitor recharge to lag. This appears as a longer-than-normal wait between flash-ready shots, or the flash indicator taking extra seconds to clear. After two or three full charge-discharge cycles, internal resistance drops and flash recycle time normalises. If the lag persists beyond that, charge the cell to 4.2V via the OEM charger and retest.
Battery percentage jumping erratically on the DSC-T110 display
The T110's fuel gauge maps display segments to fixed voltage thresholds on the OEM cell's discharge curve. A replacement cell with a slightly different discharge profile hits those thresholds at different points in its actual charge state, so the indicator can jump — for example, dropping two bars at once mid-shoot, then holding steady for a long stretch. This is a mapping mismatch, not a fault with the cell. Run two or three full in-body charge cycles and the camera's controller relearns the thresholds. If the display still jumps after that, check that the cell rests at 3.7V when nominally half-charged.