I’ll forever cement my reputation as a geek with this post post but who cares?
I’ve been using rechargeable batteries for well over a decade. Part of the problem is these things don’t live forever so how do you ID questionable batteries? I’ve tried several techniques but after seeing the BC-900 battery charger on Lifehacker I realized I had to have it.
$20 later I have one. It seems to work as advertised. Its interface is a bit cryptic but the quick start guide covers most of what you need to know without having to dive into the fairly substantial manual.
It can slow-charge, fast-charge, drain and charge, test, and do more with batteries in virtually any combo. For example, you can fast-charge two batteries while testing two others. As far as I’m concerned it’s already paid for itself me helping ID the 8 bad batteries I have out of ~100 batteries.
What could a former Radio Shack battery (later floppy disk) club member possibly want?
