750d battery draining fast

Hi there,

I'm new to the photography world and discovered this forum.

Recently bought a used 750d canon from 2016 with a one year warranty through insurance.

Everything is working normally, but I've been noticing that both batteries (2 original canon batteries) last very little.

I mostly use the viewfinder, rarely flash and even stopped from shooting RAW, from what i heard it drains more power. Only use the screen to control the settings basically. I also noticed that they tend to discharge overnight.

Can this be a problem with the machine itself or can it be from the batteries because they are already a little old (2 years) and lost power? I have already thought of buying a new one, but the originals of the canon are ~ 60 € and I am afraid to continue with the problem.

Thanks in advance

PMMG wrote:

Hi there,

I'm new to the photography world and discovered this forum.

Recently bought a used 750d canon from 2016 with a one year warranty through insurance.

Everything is working normally, but I've been noticing that both batteries (2 original canon batteries) last very little.

I mostly use the viewfinder, rarely flash and even stopped from shooting RAW, from what i heard it drains more power. Only use the screen to control the settings basically. I also noticed that they tend to discharge overnight.

Can this be a problem with the machine itself or can it be from the batteries because they are already a little old (2 years) and lost power? I have already thought of buying a new one, but the originals of the canon are ~ 60 € and I am afraid to continue with the problem.

I'd first suspect that the 2-3 yr old batteries are degraded (p. 370 of the instruction manual). You might check how they register in the camera's Battery Info. menu ("wrench 3" menu, p. 348 of the instruction manual).

If you didn't get the instruction manual with your camera, it can be downloaded from Canon:

e.g. Canon UK: https://www.canon.co.uk/support/consumer_products/products/cameras/digital_slr/eos_750d.aspx?type=manuals&language=

Hi, I had a similar problem with my Canon 6D and the Tamron 24-70 f2.8 lens. If I left the lens attached to my camera body and turned OFF the camera the battery would drain down to zero.

So when I wasn't using the camera I would remove the battery. If I had any other lens attached to the body I wouldn't have the problem, I could leave the camera for weeks and it wouldn't drained a tiny bit.

Apparently my issue was a known issue.

What lens are you using? Have you tried a different lens to see if that makes a difference?

In all the time I've been using Canon DSLR's I've never had a battery start losing it charge or even fail on me, their batteries are usually pretty good.

If you don't have another lens, I would remove the lens from the body and put a cap on the front of the camera and then leave the camera OFF. Then monitor if the battery drains unusually quick. Obviously if it does drain unusually quick that eliminates the lens.

Hope the helps.