Testing Battery Life

[cfelliot]

From a non-technical but highly practical point of view... I've found that with any brand of alkaline battery, I have to change my camera batteries after every single dive, otherwise the camera will surely conk out halfway through the second dive, invariably right when I see a really cool fish. Using the energizer lithium batteries, I can easily make it through two dives, and if they are relatively short, three dives with full camera power.

Of course, I hate throwing away partially used batteries, so always end up coming back from vacation with a baggie full of half dead AAs.

It’s great getting some field feedback on the Energizer lithium batteries. I was never advocating the use of alkalines. I just wanted to know if the e2 would give a metal a run for its money and be disposable too. Your experience suggests that this may be true.

Also, thanks to Charlie for exposing the “hole” in my testing methodology. I am now building a tester based on a dc-dc converter that will provide Watt Hour vs Amp Hour info.