- Low-cost & compact battery tester suitable for checking the state of both alkaline & rechargeable batteries
- Will test AAA AA C D 9V PP3 & N size batteries
- Lets you know when the battery is good needs recharging or replacing
- Uses the power of the battery you are testing to power itself
- no need for additional batteries When testing a battery the state is shown as Replace Recharge Low & Good on the meter. The spring-loaded arm is used for testing N AAA AA C & 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 & calculators. This unit is not suitable for testing CR123 batteries. Please note that the unit draws 220m A from the battery being tested so button cells should not be tested regularly