Canon LP-E17 EOS Kiss X8i Replacement Battery 7.4V 1000mAh

Canon EOS Kiss X8i / EOS 750D / EOS 760D — 7.4V Li-ion Replacement Battery (LP-E17)

This is a 7.4V, 1000mAh Li-ion replacement for the Canon LP-E17 battery pack. It fits the EOS Kiss X8i, EOS M3, EOS 750D, EOS 760D, and compatible bodies sharing the LP-E17 slot. The cell chemistry matches the OEM spec — same voltage rail, same connector pinout.

• EOS 750D / 760D / Kiss X8i compatibility: These bodies share the LP-E17 footprint and the same 7.4V BMS handshake protocol. The connector orientation and battery lock tab position are identical across this platform, so one part number covers the full range without modification.
• Bench tested on actual hardware: We cycled this cell through a Canon EOS 750D body and a compatible OEM charger. The BMS accepted the cell on first insertion, charge termination triggered cleanly at full capacity, and the battery-remaining indicator tracked through discharge without erratic jumps.
• First-charge protocol on Kiss X8i bodies: Insert the new cell and run one full charge cycle through the camera body or OEM LC-E17 charger before heavy shooting. The Kiss X8i's fuel-gauge circuit calibrates its remaining-shot estimate against the first charge curve — skipping this step can cause the indicator to read low even on a full cell.

Canon BMS authentication check on LP-E17 replacement cells

Canon EOS bodies with the LP-E17 slot run a handshake between the body and the battery's protection circuit on power-up. If the cell's internal resistance reads outside the expected window — common in cells that shipped partially discharged — the body can flag an incompatibility warning or refuse to power on. The fix is to charge the replacement cell fully in the LC-E17 charger before inserting it into the camera. Once the charger completes a full cycle, the body's BMS check passes on the next power-up. After that first accepted cycle, the cell behaves the same as an OEM unit in normal use.

Battery percentage jumping erratically on the EOS M3 or 750D display

This happens when the camera's fuel-gauge algorithm maps its voltage thresholds against a discharge curve it hasn't yet learned for the new cell. Canon's remaining-shot display uses voltage steps tied to the OEM cell's specific curve — a new third-party cell discharges at a slightly different slope, so the indicator can jump from 50% to 20% in a few frames. Run two full charge-discharge cycles through the body and the display stabilises. After calibration, the indicator tracks the actual charge state accurately down to the 7.2V low-battery cutoff.