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Canon LP-E12 EOS 100D Replacement Battery 7.4V 820mAh

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From $23.99 USD $29.99
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Fits Canon EOS 100D, EOS M, EOS M2, and nine additional Canon models using LP-E12 battery slots.
7.4V, 820mAh lithium-ion cell delivers standard power for extended photography without mid-session cutoff.
Flat connector tab slides into Canon's vertical battery chamber; locking latch seats flush against camera body.
We bench-tested this cell in an EOS 100D body and verified BMS handshake on first insertion without error codes.
On first use, run one complete charge cycle through the camera body itself before heavy shooting — Canon bodies require internal BMS acceptance to display accurate battery percentage on the LCD panel.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

7.4V

Amp

820mAh

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

This is a 7.4V, 820mAh Li-ion replacement for the Canon LP-E12 battery. It fits the Canon EOS 100D, EOS Kiss X7, EOS M, EOS M2, and related models in the LP-E12 family. The cell is sized to the same 48.50 × 32.10 × 12.55mm footprint as the OEM unit.

  • LP-E12 platform compatibility: The EOS 100D, Kiss X7, EOS M, and EOS M2 all share the same LP-E12 battery slot, voltage rail, and BMS communication protocol. One cell covers all of them without any electrical or physical modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an EOS 100D body. The BMS handshake completed on first insertion, and the camera accepted the cell without authentication errors or low-battery warnings at full charge.
  • First-cycle charge protocol for the EOS 100D: Charge this battery inside the camera body using the OEM charger on the first cycle. The EOS 100D BMS calibrates its battery-remaining display against the cell's discharge curve during that initial charge — skipping this step can cause the percentage indicator to read inaccurately for several cycles.

Canon BMS authentication check on third-party LP-E12 cells

Canon camera bodies running current firmware include a battery communication check that verifies the cell on insertion. A replacement cell that has never been charged may not pass this check on the first power-on, showing a no-battery or incompatible warning. This is a BMS state issue, not a defective cell. Placing the battery in the OEM charger for a full cycle — or powering the camera on and off twice — typically clears the flag and allows normal operation.

Battery percentage jumping erratically on the EOS 100D display

The EOS 100D maps battery percentage to fixed voltage thresholds calibrated against the OEM cell's discharge curve. A new replacement cell has a slightly different curve profile, so the camera can misread remaining charge — jumping from 50% to 10% with no shots taken, or holding at 100% longer than expected. This is a display calibration issue, not a capacity fault. Running two or three full charge-discharge cycles through the camera body allows the BMS to remap the thresholds accurately to the new cell.

Compatible Models

EOS 100D EOS Kiss X7 EOS M EOS M2 EOS SL1 EOS-M EOS-M10 EOS-M100 EOS-M2 EOS-M50 OS-M PowerShot SX70 HS Rebel SL1 Digital

Replaces Part Numbers

LP-E12

Technical Specifications

Voltage7.4V
Amp Hours820mAh
Capacity820mAh
Rate6.07Wh
Net Weight34g /1.20 oz
Gross Weight59g /2.08 oz
Approximate Weight59g /2.08 oz
Dimension 48.50 x 32.10 x 12.55mm

Product Highlights

  • Brand: Canon
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My EOS 100D shows "no battery" or an incompatible battery warning with a brand-new LP-E12 replacement — what's happening?

The EOS 100D runs a BMS authentication check on every new cell, and a completely uncharged replacement often fails it on first insertion. This is not a defective battery. Place the cell in your OEM Canon charger and run a full charge cycle, then reinsert — the camera should recognise it immediately. If it doesn't, power the body off and on twice with the battery seated.

The battery percentage on my EOS 100D is jumping all over the place — it dropped from 80% to 15% after a few shots.

The EOS 100D's percentage indicator maps to fixed voltage thresholds tuned for the original Canon cell. A new replacement cell has a slightly different discharge curve, so those thresholds fire at unexpected points. Run two full charge-discharge cycles through the camera body and the BMS recalibrates its readings against the actual curve. After the second cycle, the displayed percentage should track consistently with remaining charge.

My shot count is lower than I expected from an 820mAh LP-E12 — is the battery underpowered?

Shot count estimates assume minimal flash, short review times, and basic autofocus. On the EOS 100D, enabling continuous AF, frequent Live View, or using the built-in flash for every frame can more than double the current draw beyond that baseline. The 820mAh capacity is correct — the draw profile of your shooting style is the variable. Reduce Live View time and limit flash recycling cycles to get closer to the rated shot count.

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