Buy products related to battery tester for small battery products and see what customers say about battery. Weaker batteries can be used in my portable radios.
Small Portable Digital Battery Tester Universal Mini Voltage Checker for C AA AAA D N 9V 6F22 SR44 and LR44 1.55V Button Cell Battery, by FstDgte .
Buy La Crosse Technology 911-114 Portable Battery Tester: Battery Testers. Dlyfull Universal Battery Tester with LCD Display, Multi Purpose Small Battery .
So for so good, gave it to my 4 year old son to test all old batteries I had. Works great. Tested all types of listed batteries. Only thing I felt is little expensive.
Eagle Eye offers several different models of portable digital battery testers. The IBEX-Series portable battery testers are the fastest, smallest and most accurate .
What I Don't Like About the ZTS Mini-MBT Multi Battery Tester. Final Thoughts on. .. Although small, this tester is one of the most useful in the portable category.
La Crosse battery tester 911-114. Don't throw away good batteries, test them first. Test rechargeable or alkaline batteries in the following sizes: AAA, AA, C, .