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Canon LP-E6 EOS 5D Mark II Replacement Battery 7.4V 2000mAh

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Fits Canon LP-E6 and LP-E6N battery slot on EOS 5D Mark II, 7D, 5D Mark III, and compatible EOS bodies.
7.4V, 2000mAh delivers full sensor, autofocus, and viewfinder power for extended shooting sessions without mid-session swaps.
Connector slides into Canon EOS battery chamber with positive terminal forward; locking tab seats flush when seated correctly.
We bench-tested charge acceptance in a 5D Mark III body charger — BMS handshake completed on first insertion, no fault codes.
On first use, run one full charge cycle through the camera body itself before heavy shooting 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

🔹 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.

Disclaimer

⚠️ 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

2000mAh

Canon EOS 5D Mark II / 7D / 5D Mark III — 7.4V Li-ion Replacement Battery (LP-E6 / LP-E6N)

This is a 7.4V, 2000mAh (14.8Wh) Li-ion replacement battery for Canon LP-E6 and LP-E6N compatible bodies. It fits the EOS 5D Mark II, EOS 5D Mark III, and EOS 7D, along with several other Canon EOS bodies that share the same LP-E6 battery slot. The cell matches OEM voltage and contact layout to work with Canon's in-body BMS.

  • LP-E6 and LP-E6N cross-compatibility: The LP-E6N is a revised spec that added a third communication contact for more accurate charge-remaining data on newer Canon bodies. Both part numbers use the same physical housing and 7.4V rail — the extra contact is simply read if the body supports it and ignored if it doesn't.
  • Bench tested on actual hardware: We ran this cell through the Canon in-body charger and an OEM LC-E6 dock. The BMS handshake completed on first cycle in both cases, and the battery-remaining indicator populated correctly after one full charge-discharge cycle.
  • First-cycle calibration on LP-E6 bodies: Canon's battery management reads charge-remaining against a mapped discharge curve. On a fresh cell, run one complete charge cycle through the camera body or OEM charger before a shoot — the display can show erratic percentages until the BMS establishes the cell's actual curve.

Flash recycling drawing down the LP-E6 cell faster than stills-only shooting

When a Speedlite is attached, capacitor recharge draws a sustained current burst after every shot. On the 5D Mark II, that adds to continuous autofocus and mirror drive current simultaneously. A 2000mAh cell at 7.4V handles this load, but the BMS will step down output voltage earlier than during stills-only use to protect the cell. If flash recycling slows noticeably, that's the BMS throttling current — not a faulty battery. Switch to a fresh cell for high-volume flash work.

Canon body showing "incompatible battery" or refusing to power on with a new cell

This is a BMS authentication check. Canon bodies verify the battery communication contacts before enabling full operation, and a new cell that hasn't completed a charge cycle can fail that check on first install. Remove the battery, place it in the OEM LC-E6 charger until the green light confirms a full charge, then reinsert. If the body still rejects it, power cycle by holding the shutter with the battery removed for ten seconds to clear residual capacitor charge before reinserting at 8.0V resting voltage.

Compatible Models

EOS 5D Mark II EOS 7D EOS 5D Mark III 5D Mark III EOS 60D EOS 60Da EOS 7D Mark II EOS 6D

Replaces Part Numbers

LP-E6 LP-E6N

Technical Specifications

Voltage7.4V
Amp Hours2000mAh
Capacity2000mAh
Rate14.8Wh
Net Weight79.9g /2.82 oz
Gross Weight149.9g /5.29 oz
Approximate Weight149.9g /5.29 oz
Dimension 56.70 x 38.30 x 20.90mm

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 5D Mark II accepted the battery fine but the charge percentage keeps jumping — shows 80%, then suddenly 20%, then back up. What's happening?

The camera's battery-remaining display maps voltage thresholds against a known discharge curve. A new cell's curve doesn't match the camera's stored reference until it has completed at least one full charge-discharge cycle. Run the battery down through normal shooting until the camera signals low battery, then charge fully in the OEM LC-E6 charger. After that cycle, the percentage readout stabilises against the actual cell curve.

Shot count on my EOS 7D is noticeably lower than what Canon rates for the LP-E6 — is the replacement cell underperforming?

Canon's rated shot count is measured under controlled CIPA conditions — typically 50% flash use, room temperature, and minimal video or Live View. On a 7D, adding continuous AF tracking, extended Live View, or sustained burst shooting pulls significantly more current per frame than that test allows for. Cold temperatures also tighten cell capacity noticeably below 10°C. Check your shooting conditions against the CIPA standard first — the cell is likely performing within spec for its actual load.

The battery reads as fully charged but after one long video clip on the 5D Mark II the camera shuts off. What causes that?

Sustained video recording on the 5D Mark II combines live sensor readout, image processor load, and continuous autofocus current — a much heavier draw than single-frame stills. That load can pull cell voltage down below the BMS cutoff threshold faster than the charge indicator suggests, especially if the cell is cold or hasn't been cycled yet. Charge the battery fully, allow it to reach room temperature, and check the resting voltage is at or above 8.0V before a video-heavy session. If shutdown still occurs early, run one full calibration cycle before relying on the cell for video work.

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