7D Battery Life

Perhaps your wasabi power product had been sitting on the shelf for a while before being sold.... or maybe it has a short. I know there is a way to put recharcheable batteries through a break-in/refresh cycle which can often renew their capacities, but I don't know if theirs a feature for this one.

Are you sure nothing is pressing a button while 'stored'?

I've been thinking- perhaps the li-ion cells in the packs are old junky ones. That's not too uncommon.
Right after you charge the cells, the cell pack voltage will be high (was it 8.4V?) it'll shortly start dropping as the cells really can't hold that much charge.

How hot does the pack get after charging? Also, if you can get to the recessed contacts, do measure the battery pack voltage fresh off the charger, leave the battery on the table, and measure it after a few hours.

...or if the pack is really bad you can watch the voltage drop before your eyes.
I'm not sure what the design is inside of the packs but that *should* work.

Craig

I thought wasabi was the japanese word for horseradish. No wonder your power is not lasting long if you try to use horseradish to run your camera. Use real Canon batteries instead.

/ Magnus

I shot all day two 8gb cards and a 4gb card and I think it used 65% of the battery not sure if it was the original Canon or my 7dayshop job, 7D's batteries seem to last a heck of a lot longer than my 350D ever did.

My 7D battery works just fine. I'm so confident about it, it is so reliable.

Well the Canon battery is at 100% when I got home...so perhaps it IS just the generic. I bought the wasabi battery version because it was rated at a higher mAh and had some great reviews. For the price I guess its still not bad, but I'll buy a Canon variety. Thanks everyone.

Sdiver2489 wrote in post #12291603
Well the Canon battery is at 100% when I got home...so perhaps it IS just the generic. I bought the wasabi battery version because it was rated at a higher mAh and had some great reviews. For the price I guess its still not bad, but I'll buy a Canon variety. Thanks everyone.

What did the wasabi run you?

sapearl wrote in post #12291696
What did the wasabi run you?

http://www.amazon.com …TF8&qid=1303776​281&sr=8-1

Same price its been since I bought it.

Sdiver2489 wrote in post #12291603
Well the Canon battery is at 100% when I got home...so perhaps it IS just the generic. I bought the wasabi battery version because it was rated at a higher mAh and had some great reviews. For the price I guess its still not bad, but I'll buy a Canon variety. Thanks everyone.

Try Phottix or Maximal, both make great aftermarket equivalents. Not sure if Phottix has an LP-E6 variant though, I know Maximal does. Powwer makes one too, but I didn't have it long enough to know how it performed across 2 full charge cycles in the camera.

I see another person reviewed the Wasabi power similar to what I am experiencing. Perhaps I'll see what I can do to get a replacement...but I imagine they'll want me to ship it back...at which point I'll probably say forget it.

Sdiver2489 wrote in post #12291821
http://www.amazon.com …TF8&qid=1303776​281&sr=8-1

Same price its been since I bought it.

Well, it's less than half the price of the Canon - so depending upon usage that may not be a bad deal.

canon 7d batteries make me last 1000-1200 shots. i got to use it on a 3-day event without recharging.

I shot a full day of airshow at Miramar last October. About 2000 photos, 2 OEM batteries gripped. Moderate chimping because I was running out of storage and started deleting those that were clearly OOF/blurry (thanks to slow shutterspeed when trying to capture prop planes, so OOF due to operator failure). I had the 100-400 IS on all day long, AI Servo 99.5% of the time.

By the end of the show, as I was stuck in the line of cars leaving the show, I looked at my battery indicator and it showed I was at 50%.

So as many have suggested, I think your 3rd party wasabi batteries aren't performing as promised/advertised. But I can only assume that you paid a lot less for them than what I did for the OEMs back in 2009 so it all evens out.

Sdiver2489 wrote in post #12287682
I've gotten the feeling that my 7D battery life isn't all that great compared to my previous 50D...

I have used the official Canon batteries for day long shows of 12 continuous hours of belly dance photography. I generally get ~5500 photos/battery, including with some intermittent LCD reviewing during the course of the day.

These batteries last quite a long time in my experience.