Checks AA, AAA, C, D, 9V types of regular or rechargeable batteries Internal battery not required, lasts forever. Compact size and light weight 90 days money back guarantee and 1 year limited warranty
Customer Rating: Summary: indicator not accurate and a little tricky to hold Comment: This battery tester is not very accurate. Most of the AA batteries that I test fall under the good range, even when it needs to be recharged.
It is also a little tricky to clamp battery being tested.
I am not satisfied with this product. Customer Rating: Summary: Didn't work Comment: If I could, I would not give this product one star. Did not work and totally useless. It's to cheap to even bother sending back. Customer Rating: Summary: Don't waste your money Comment: This does not work reliably. It often shows the battery is good when in fact it is dead. Customer Rating: Summary: Should've bought sooner Comment: I love this battery tester. It's very easy to use and it saves you from throwing away a perfectly good battery. Customer Rating: Summary: Measures SOMETHING - but what? and resolution so-so Comment: This is supposed to test your batteries for good/replace-Recharge.
On the good side - it is small, and does SOMETHING.
On the not-so-good side
1. WHAT does it measure? this is not clear. There is no manual, and the
scale is unlabeled. I am *assuming* it measures voltage, but I have no
clue if this is under some sort of load or not, and so the results are
not very convincing
2. If it DOES mesure Voltage, this is not so good for Rechargeable
Batteries, as they only give out 1.2V even when fully charged.
2. The scale has strange proportions, with more than 2/3rd of it for "bad"
and only about 20% for "Good". This is not very useful.