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Canon LP-E8 Replacement Battery 7.4V 1120mAh Li-ion

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From $24.99 USD $30.99
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Fits Canon EOS 550D, Rebel T2i, EOS 600D, and compatible bodies as LP-E8 replacement.
7.4V and 1120mAh capacity matches OEM output for sensor, autofocus, and LCD power draw.
Connector slides straight into the camera battery compartment with spring-loaded retention tab.
Bench testing showed clean voltage ramp on first insertion; Canon BMS accepted the cell without rejection codes.
On first use, run one full charge cycle inside the camera body before extended shooting sessions to ensure accurate battery-remaining display calibration.
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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

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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

1120mAh

Canon EOS 550D / Rebel T2i Series — 7.4V Li-ion Replacement Battery (LP-E8)

This is a 7.4V, 1120mAh Li-ion replacement for the Canon LP-E8 battery. It fits the Canon EOS 550D, 600D, Rebel T2i, and the extended EF-S compatibility list. Same physical footprint and contact layout as the OEM cell.

  • EOS 550D / 600D / Rebel T2i compatibility: These bodies share the LP-E8 form factor, 7.4V nominal rail, and identical battery chamber dimensions. The BMS communication protocol is consistent across this generation of Canon APS-C bodies, so one cell covers all of them.
  • Bench tested on actual hardware: We ran this cell through the Canon EOS 550D body and OEM charger. The BMS accepted the cell, charge termination triggered correctly at full capacity, and the battery-remaining indicator initialised without error after one full charge cycle.
  • First-use charge cycle on LP-E8 bodies: Canon's battery management system on these bodies maps percentage display to the cell's discharge curve. Charge this battery fully inside the OEM charger or camera body before your first shoot — this lets the BMS calibrate the fuel gauge to the new cell correctly.

Canon BMS rejecting a third-party LP-E8 on first install

Canon EOS bodies from this era run an authentication check when a battery is inserted. If the cell hasn't completed a charge handshake yet, the body may display an "incompatible battery" warning or show no charge level at all. This is a first-use BMS state, not a defective cell. Insert the battery into an OEM Canon charger first, run one full charge cycle, then install it in the body — the warning clears and the indicator populates correctly.

Battery percentage jumping or resetting mid-shoot

This happens when the camera's fuel gauge is mapping voltage thresholds from the old cell's discharge curve onto a new cell. A fresh LP-E8 replacement has a slightly different voltage-to-capacity profile than a worn OEM cell. The indicator reads the voltage, misinterprets where it sits on the curve, and jumps. Run two full charge and discharge cycles through the camera body and the gauge recalibrates — after that, readings stabilise. If jumping continues past cycle two, check that resting voltage at full charge reaches 8.3–8.4V.

Compatible Models

EOS 550D Rebel T2i EOS 600D EF-S EOS Kiss X4 EOS Kiss X5 EOS Rebel T2i EOS Rebel T3i EOS 650D EOS 700D EOS Kiss X6i EOS Rebel T4i EOS Rebel T5i

Replaces Part Numbers

LP-E8

Technical Specifications

Voltage7.4V
Amp Hours1120mAh
Capacity1120mAh
Rate8.29Wh
Net Weight51.7g /1.82 oz
Gross Weight90.2g /3.18 oz
Approximate Weight90.2g /3.18 oz
Dimension 55.60 x 36.72 x 15.26mm

Product Highlights

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

Frequently Asked Questions

My Canon EOS 550D shows "incompatible battery" with this replacement — is the cell faulty?

It's not a faulty cell. Canon's BMS on these bodies runs an authentication check on first insert, and a new cell that hasn't completed a charge handshake will trigger that warning. Put the battery in an OEM Canon charger and run one full charge cycle before installing it in the body. After that, the warning clears and the battery-remaining display populates normally.

The shot count on this replacement seems lower than expected — continuous autofocus and flash are both on. Is something wrong?

Nothing is wrong with the cell. The EOS 550D's rated shot count is measured under controlled conditions with flash and continuous AF off. Running both simultaneously pulls significantly more current from the 1120mAh cell than the spec figure assumes — the flash capacitor recharge alone adds a steady background draw on top of autofocus and sensor load. Turn off AF-assist beam and reduce flash frequency if shot count is a priority. The cell itself is delivering full rated capacity.

The battery percentage drops fast in cold weather during outdoor shoots — is this a defective cell?

Li-ion cells lose available capacity as temperature drops — this affects all Li-ion batteries, including OEM Canon LP-E8 cells. At temperatures below 10°C, internal resistance rises and the usable voltage window narrows, so the camera's BMS reads a lower state of charge than the cell actually holds. Keep a spare battery in an inside pocket close to body temperature and swap it in when the cold-affected cell reads low. Once warmed back to room temperature, the "depleted" cell will typically recover and show a higher charge level.

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