Yes, I have one and use it to check my batteries after every flight. It works as a voltage and IR checker and has helped me spot a cell going bad on more than one occasion.
I also use it to check the IR on new batteries and when the IR starts to climb after several years of use I know the batteries are getting close to the end of their life.
I hope this was helpful.
Best regards,
Cris B.
AMA#L945841, NASA#2845, JPO#2503,
NSRCA#4603, IMAC#7357
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