Very useful tool!

[clearwatermike]

I've been looking for a battery tester...one that does an actual load test and indicates what percentage of battery life is left...and finally found one. It arrived today. I found that the batteries I marked "used" after being in my Duelfield for 25 hours actually have 80% capacity left, and the batteries in the headlamp I'm going to use tonight only have 10%!
I had looked at Radio Shack, Ace Hardware, etc., and only found "voltmeter" type battery checkers. This got very good reviews, and I'm very happy with it!

http://www.amazon.com/dp/B000AOHXTW/ref=pe_175190_21431760_M2C_SC_dp_1

 

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[signal_line]

I've had one for five years. Works great for a counterfeit battery detector (nine volt's are notorious).