Kyocera BP-1100 Microelite 3300 Compatible Battery 3.7V 1400mAh

Kyocera MICROELITE 3300 — 3.7V Li-ion Replacement Battery (BP-1100)

This is a 3.7V, 1400mAh Li-ion replacement cell for the Kyocera MICROELITE 3300 compact digital camera. It matches the OEM BP-1100 form factor, voltage rail, and connector pin-out. Swap it in when the original cell no longer holds a charge or fails to register in the camera body.

• MICROELITE 3300 fit: The BP-1100 uses a single-cell 3.7V Li-ion configuration with a three-pin connector that carries both power and BMS communication to the camera body. Any replacement must match this connector exactly — a two-pin cell will not complete the handshake and the camera will display a battery error regardless of charge level.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a camera body, monitoring the BMS communication line. The protection circuit responded correctly to end-of-charge termination and low-voltage cutoff, and the camera accepted the cell without prompting an incompatibility flag.
• First-use charge cycle on MICROELITE 3300: Insert the new cell and charge it fully inside the camera body or OEM charger before shooting. The MICROELITE 3300 maps its battery-remaining indicator against a discharge curve it calibrates on the first full cycle — skipping this step causes the percentage counter to jump erratically mid-shoot.

Dead battery indicator on the MICROELITE 3300 with a freshly charged replacement cell

The MICROELITE 3300 reads state-of-charge by comparing cell voltage against a stored discharge curve. A new cell fresh off a charger can sit at 4.18V — slightly above the OEM cell's resting voltage — which occasionally causes the camera's indicator circuit to misread the charge state on first power-on. The fix is one full charge cycle completed inside the camera body, which lets the BMS recalibrate its reference point against the new cell's actual discharge profile. After that cycle, the indicator tracks correctly through the full charge range.

Battery percentage jumping from 60% to 5% without warning during a shoot

This happens when the camera's voltage-threshold table doesn't yet match the discharge curve of the replacement cell. The OEM table expects voltage to drop gradually through a mid-range plateau — if the new cell has a slightly steeper drop at a particular state-of-charge, the camera re-maps abruptly. It is not a fault with the cell. Run one full discharge to near-empty and recharge completely in-camera to let the BMS remap its thresholds against the new cell. After two full cycles the percentage readout stabilises and tracks linearly down to the low-battery cutoff at approximately 3.0V.