Home > Consumer Reviews > Aa/aaa Battery Tester Tests Up To 4 Rechargable Batteries

This tester will test batteries under load which is more accurate. I have 3 swing needle type testers which just test the voltage with no load and they all said some dead batteries were good. This tester indicated correctly that the batteries are dead. After lots of testing - I trust this one.

I use many NiMH rechargeable batteries - most are identical in appearance... They eventually wear out - but it's hard to tell which are holding less of a charge than others... and some devices (like a wireless mouse) will operate fine on the lower voltage batteries...

This device easily lets me sort them...

This is without doubt one of the best purchases i have ever made. Until I received this item had no idea how many weak even dead batteries occupied space in my home.In minutes you go thru all the batteries in remotes, drawers etc. I have loaned it to neighbors and friends. Simply Superlative

As stated in other reviews, Delkin Aa/aaa Battery Tester is a "load" tester which gives much better readings than non-load testers. I also have the more expensive the ZTS Mini Multi-Battery Tester and both testers are pretty much in sync with battery readings 90% of the time with the ZTS occasionally reading one bar higher. I have a bit more confidence using both testers.

After going through the almost 40 supposedly "dead" batteries my kids have accumulated, I found about 12 with still 80% life; another 9 with 40-60% life; and another 5 or so with still 20% life which will work fine in TV remotes. So these testers will pay for themselves in no time and in the long run save me money.