A great pocket sized little gadget that tells you when your batteries are dead or need recharging. Easy to use and stops you throwing away perfectly good batteries.
When testing a battery, the state is shown as ‘Replace/Recharge’, ‘Low’ and ‘Good’ on the meter. The spring-loaded arm is used for testing ‘N’, ‘AAA’, ‘AA’, ‘C’ and ‘D’ size batteries, while 9V PP3 batteries are held against two contacts on the side of the unit. In addition, the spring-loaded arm can also be used to test button cells from watches and calculators. This unit is not suitable for testing CR123 batteries. Please note that the unit draws 220mA from the battery being tested, so button cells should not be tested regularly!