Canon LP-E12 Replacement Battery 7.4V 650mAh Li-ion EOS 100D

Canon EOS 100D / EOS M Series — 7.4V Li-ion Replacement Battery (LP-E12)

This is a 7.4V, 650mAh Li-ion replacement for the Canon LP-E12 battery. It fits the EOS 100D, EOS Kiss X7, EOS M, EOS M2, and nine additional Canon bodies that share the LP-E12 form factor. The cell dimensions match OEM spec — 48.50 × 32.10 × 12.55mm — so it seats and latches without modification.

• LP-E12 platform compatibility: Every body on the fit list uses the same LP-E12 voltage rail and connector pinout. The BMS communication lines are identical across these models, so the battery exchanges between bodies without reconfiguration.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an EOS M body. The BMS accepted the cell, reported charge status correctly, and held voltage above the 6.0V cutoff threshold through a full discharge sequence.
• First-use charge protocol for EOS bodies: Insert the battery and charge it fully inside the camera body or OEM LC-E12 charger before your first shoot. Some EOS bodies require one complete in-camera charge cycle to map the new cell's discharge curve to the battery-remaining indicator accurately.

Canon EOS 100D battery percentage jumping or freezing mid-shoot

The EOS 100D maps battery percentage to a voltage-threshold table calibrated against the OEM cell's discharge curve. A new third-party cell can follow a slightly different curve, causing the indicator to jump — say, from 60% to 20% — without a proportional drop in actual capacity. This is a display mapping issue, not a fault with the cell itself. One full charge-discharge cycle inside the camera body allows the BMS to re-map thresholds to the new cell. After that cycle, indicator behaviour typically stabilises.

EOS M or EOS 100D displaying "incompatible battery" on a valid LP-E12 replacement

Canon EOS bodies run an authentication check against the battery's communication pins on every power-on. A new cell that hasn't completed a charge handshake can trip this check and display a compatibility warning even though the cell is electrically correct. The fix is straightforward: seat the battery, attach the LC-E12 charger, and charge to full before powering the camera on for the first time. If the warning persists after a full charge cycle, remove and firmly reseat the battery — the contact plate on the LP-E12 must sit flush against all five body contacts, and a misalignment of even 0.5mm can interrupt the data line at 3.3V logic level.