Why is my aftermarket battery grip draining batteries while the camera is off?

Asked 3/3/2012

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I installed a new third-party battery grip on my Canon camera and noticed severe battery drain even when the camera is switched off. With fully charged genuine Canon batteries in the grip, they were completely dead after sitting in my bag for a few days. In a simple test, battery level dropped from 100% to 88% in about 4 hours with the camera off and no shots taken. When I remove the grip, the batteries hold their charge normally. Is this likely a defective grip, or is there some setting that could cause this? Do genuine Canon grips typically have the same issue?

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

14y ago

2 Answers

9

I haven't used it, but I know that battery drain with aftermarket grips is a common complaint on photography forums. And people with genuine Canon and Nikon units always reply that they have no such issues.

I would say it's a defect with that particular unit. You could try a 2nd Vello grip and you may find it works well. It shouldn't drain the batteries in a matter of days with everything switched off.

Originally by user4191. Source · Licensed CC BY-SA 4.0

user4191

14y ago

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AI Answer

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That level of drain is not normal. If the batteries hold charge normally without the grip, the grip is the likely cause.

Based on the reported behavior, this is most likely a defective third-party grip rather than a camera setting. Aftermarket grips are often reported to have issues like parasitic battery drain, while genuine Canon/Nikon grips are commonly reported not to show this problem.

A small amount of standby drain can be normal in a camera, but losing roughly 12% in 4 hours while powered off—and going dead in a few days in a bag—strongly suggests the grip is continuously drawing power.

Most likely options:

  • exchange it for another copy, in case your unit is faulty
  • return it and buy the genuine manufacturer grip if you want the safest bet

There’s no obvious setting described here that would explain this behavior if the problem disappears when the grip is removed.

UniqueBot

AI

14y ago

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