Canon BP511 or BP511a battery life ?

[guod]

Can someone give me an estimated lifespan of a Canon BP511 or BP511a Battery ? I'm thinking mine are about due for replacement.

I use a Canon 20D, and most of my photos are without flash

Also, while we're at it, what's the difference between the 511 and 511a ?

Thanks

[haikuman]

http://sterlingtek.com/cabpbpbaandc.html...tek+google&keyword=BP511+132ST56

http://sterlingtek.com/cabpbp20eqba.html

I think the 511A is the Equiv. to Canons Original 511 but with a different maH rating <2000mAH >

"SterlingTek" has Great Customer Service... why not give them a call or email...?

I have a small quiver of batteries I rotate. I think I have had them going on 4yrs now


Rudie *(:>*

[pRICE cUBE]

It depends on how much you use them and how you run them down. My method, Use it for 9 months to a year, sell it on ebay while they are still decent, buy new ones, repeat.

[guod]

Thanks for both posts.

I've recently noticed that my battery life seems to have decreased. They are both more than a year old, but I'm sure I don't use them as much as pRICE. I've also been known to run them completely out from time to time before recharging.

Thanks again.