I can't kill my battery!

[cmosdos]

I have yet been able to run my battery down. I've never had this problem before... well, it's not really a *problem* cause it's good that it lasts a long time. But I wish I knew how long the battery would last so I can plan trips out. So far the most I've spent on the battery is 12 hours (always in 'on' mode set at 15min timeout) and 3gb of RAW pictures taken. I was also using a 420ex speedlight during half of this time. The battery icon still showed a bar left.

I've got the battery grip ordered from BH and it should be here at the end of the week. I can't imagine how long it's going to last with two batteries!?!

[BrandonSi]

I have yet been able to run my battery down. I've never had this problem before... well, it's not really a *problem* cause it's good that it lasts a long time. But I wish I knew how long the battery would last so I can plan trips out. So far the most I've spent on the battery is 12 hours (always in 'on' mode set at 15min timeout) and 3gb of RAW pictures taken. I was also using a 420ex speedlight during half of this time. The battery icon still showed a bar left.

I've got the battery grip ordered from BH and it should be here at the end of the week. I can't imagine how long it's going to last with two batteries!?!

I'm not sure which camera you're refering to, but I often go close to a month without recharching either of my batteries in my 300D grip.

[chap]

The 350D battery does seem to last forever. If you're worried about running out of juice during the day, your best bet is to get a second battery to carry around. That way if it runs out you'll always have a spare. I bought a couple of $10 batteries on ebay from sterlingtek. They may not last quite as long as the canon battery, but for the price they make good backups. Here's a link to their site: http://www.sterlingtek.com/.

chap

[arpi]

I am very surprised with the battery life in my 20D. I always leave the camera ON and it goes to sleep by itself lasting days (many). I think that one of the most critical aspects in battery life is the LCD brightness level (it takes a lot of current to light it up at the highest setting). My camera has exceeded the expectations I had in terms of battery life and I think that in everything else too :)

Cheers

[cmosdos]

Actually, I have 3 of sterlingtek's batteries on the way already! I'll probably end up rotating them so one doesn't just sit in the bag for months and months. I think that ends up reducing the battery's life.

[arpi]

it also has to do with the batteries themselves. some batteries are good and give a good battery life, others don't. Even if they are of the same brand, model-type and new. Batteries are not created equal ;) it is a matter of luck