Canon EOS Rebel T3i Battery: BM LP-E8 2-Pack Kit
The Canon EOS Rebel T3i runs on one LP-E8 rechargeable lithium-ion battery. The BM Premium BM-LPE8K4-DC is a third-party kit with two LP-E8 batteries and a dual-bay USB charger. Each battery is advertised at 7.2 V and 1,700 mAh, and you can swap it in without any tools.
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Will This Battery Work in Your Canon T3i?
Canon lists the LP-E8 as the battery for the Rebel T3i. BM sells this kit as an LP-E8 replacement for the T3i and three other Canon models. Run this quick check before you buy, because the Rebel T3 (no “i”) takes a different battery.
This is a third-party kit, not a Canon product. Compatibility is BM’s claim, and the specs below are BM’s advertised ratings. Canon’s own figures in this guide apply to the original Canon LP-E8 only.
BM Premium BM-LPE8K4-DC Specifications
| Property | Detail |
|---|---|
| Brand / kit model | BM Premium BM-LPE8K4-DC |
| Kit contents | 2 × LP-E8 compatible batteries, 1 × dual-bay USB charger |
| Battery type | LP-E8 compatible, rechargeable |
| Chemistry | Lithium-ion (Li-ion) |
| Nominal voltage | 7.2 V |
| Advertised capacity | 1,700 mAh per battery |
| Advertised energy | 12.2 Wh per battery |
| Chip | “Fully decoded” chip, advertised to work like the original |
| Memory effect | Advertised as none; you can charge it at any time |
| Advertised protection | Overcharge, short-circuit, high-temperature and surge protection |
| Charger input | Micro-USB |
| Charger bays | 2 (charges one or two batteries at once) |
| Charger power sources | USB wall charger, car charger or external battery (wall adapter and power bank sold separately) |
| Charger indicator | Red while charging, green when full |
| Warranty | 1 year (advertised) |
| Canon LP-E8 (reference) | 7.2 V, 1,120 mAh, 8.1 Wh, 37.1 × 15.4 × 55.2 mm, about 52 g |
| Canon shot rating (reference) | About 550 shots (viewfinder, no flash) or 440 (50% flash) at 23°C, original LP-E8 |
BM figures are advertised ratings, not lab results. BM does not publish the size, weight, measured capacity, runtime or charge time for this kit, so none are listed. The Canon rows are for the original Canon battery and are shown for comparison only.
Canon T3i Battery Replacement Difficulty
This is an easy job. The battery sits behind a cover on the bottom of the camera, and the swap needs no tools, screws or teardown. The only tricky part is buying the right battery. Tap a slice to highlight it.
- 15% Opening the cover
- 15% Releasing the old battery
- 45% Choosing a compatible battery
- 25% Locking in & checking the level
Difficulty score and effort split are an editorial estimate based on Canon’s battery installation steps, not an official rating. Fitting a BG-E8 grip changes how you reach the battery.
How to Replace Your Canon T3i Battery
Tap each step to tick it off as you go.
- 1Open the coverTurn the camera off. Slide the lever on the battery compartment cover on the bottom of the camera and open the cover.
- 2Remove the old batteryPress the battery release lever and take out the used battery. Fit its protective cover to keep the contacts from shorting.
- 3Insert the new LP-E8Use a fully charged battery. Insert it with the contact end going in first and push it in until it locks.
- 4Close the coverClose the cover until it snaps shut. Turn the camera on and check the battery level indicator.
Check that the battery is charged, that it went in contact end first and locked, and that the cover is fully closed. If the camera still stays off, the cause may not be the battery.
Other Cameras That Use the LP-E8
BM’s listing names the Rebel T2i, T3i, T4i and T5i, plus the EOS 550D, 600D, 650D and 700D. Those are four Canon models, and each one is sold under a Rebel, EOS or Kiss name depending on the region. Confirm the battery type in your camera manual first.
- Canon EOS Rebel T2iSame camera as EOS 550D
- Canon EOS Rebel T3iSame camera as EOS 600D
- Canon EOS Rebel T4iSame camera as EOS 650D
- Canon EOS Rebel T5iSame camera as EOS 700D
- Canon EOS 550DAlso sold as Rebel T2i
- Canon EOS 600DAlso sold as Rebel T3i
- Canon EOS 650DAlso sold as Rebel T4i
- Canon EOS 700DAlso sold as Rebel T5i
- Canon EOS Kiss X4Japan name for the Rebel T2i
- Canon EOS Kiss X5Japan name for the Rebel T3i
- Canon EOS Kiss X6iJapan name for the Rebel T4i
- Canon EOS Kiss X7iJapan name for the Rebel T5i
- Canon BG-E8 gripHolds two LP-E8 packs
The Kiss names come from Canon’s regional naming for the same four cameras. The BM listing reviewed does not state any testing in the BG-E8 grip.
Safety, Storage & Disposal
Canon’s safety data sheet for its own LP-E8 says to keep the battery away from heat and fire, and not to disassemble, deform or short-circuit it. BM’s protection features are advertised claims, not independent test results.
- Never open, crush, short-circuit or heat the battery.
- Fit the protective cover on a spare battery when you store it.
- Charge at 6°C to 40°C, which is Canon’s range for the original LP-E8.
- Take used batteries to a battery collection point and cover the contacts first.
Canon EOS Rebel T3i Battery: FAQ
What battery does the Canon EOS Rebel T3i use?
The Canon EOS Rebel T3i uses one LP-E8 rechargeable lithium-ion battery. With the optional BG-E8 grip it can use two LP-E8 packs.
Is BM-LPE8K4-DC a single battery?
No. It is a kit model. The kit has two BM Premium LP-E8 batteries and one dual-bay USB charger.
Does this battery fit the Canon Rebel T3?
No. The Rebel T3 (no “i”) uses an LP-E10 battery. The Rebel T3i uses the LP-E8.
Can I charge the T3i battery through the camera’s USB port?
No. Canon documents charging in an external charger and lists the camera’s USB port for computer connection and PictBridge. The USB feature in this kit belongs to its separate charger.
How many shots can I take on one charge?
Canon rates a fully charged original LP-E8 at about 550 shots through the viewfinder without flash, or about 440 with 50% flash, at 23°C. Live View drops this to about 200 shots without flash. These are Canon figures for its own battery, not test results for the BM battery.
How long does the BM battery take to charge?
BM’s listing does not state a charge time for this kit. Canon’s two-hour figure applies to its original battery and charger only. The BM charger shows a red light while charging and a green light when the battery is full.
