Canon LP-E6N EOS 5D Mark II Replacement Battery 7.2V 1600mAh

Canon EOS 5D Series — 7.2V Li-ion Replacement Battery (LP-E6N)

This 7.2V, 1600mAh Li-ion cell replaces the Canon LP-E6N, LP-E6NH, LP-E6P, and LP-E6 across a broad range of Canon EOS bodies. It fits the EOS 5D Mark II, 5D Mark III, 5DS, 5DS R, and more than ten additional models sharing the same battery bay and connector. Voltage and BMS communication protocols match the OEM specification for accurate battery-level reporting in the camera menu.

• EOS 5D series and LP-E6 platform compatibility: Canon's LP-E6 family spans multiple generations of full-frame EOS bodies because the physical bay, contact pin layout, and 7.2V rail stayed consistent across those releases. One replacement cell covers cameras from the 5D Mark II through to the 5DS R without any adapter or modification.
• Bench tested on actual hardware: We ran this cell in an EOS 5D Mark III body using an OEM LC-E6 charger. The BMS completed a full charge cycle without error flags, and the camera's battery-remaining display tracked voltage draw accurately across burst and video recording sequences.
• First-install charge cycle on EOS bodies: Insert the cell and charge it fully through the camera body or OEM charger before your first shoot. Canon's BMS maps the battery-remaining percentage to the cell's discharge curve during that initial cycle — skipping it can cause the indicator to read inaccurately for the first several uses.

Canon BMS authentication on third-party cells at first install

Canon EOS bodies from the 5D Mark III onward run an authentication check when a new cell is inserted. If the camera does not recognise the cell immediately, it may display a non-OEM battery warning rather than rejecting the cell outright. This is a one-time handshake — the body reads the BMS response from the replacement cell and logs it. Running a full charge cycle through the OEM LC-E6 charger, then reinserting, resolves the warning on most bodies.

Battery percentage jumping erratically on the EOS display

This happens when the camera's fuel gauge is still mapped to the discharge curve of the previous cell. The replacement cell's voltage at any given state of charge does not align exactly with the threshold table the body built from prior cycles. The fix is straightforward: complete two to three full discharge-and-charge cycles so the camera recalibrates its threshold mapping. After that, the percentage indicator tracks the cell's actual discharge curve and the jumps stop. Target a full charge termination voltage of 8.4V to confirm the charger completed each cycle correctly.