dickfoster
Elite Member
That is essentially just a volt meter. You'd be better off with a common digital multimeter because it can do a lot more than just measure voltage.
To really test a battery you have to supply a high load to pull current from it, then you measure the voltage to see if it can deliver current to a real load.
For automotive type work I like this DMM from Craftsman. Sears.com It has a very handy DC/AC clamp on for measuring current without disconnecting the circuit. It lives in my truck so it's always handy.
To really test a battery you have to supply a high load to pull current from it, then you measure the voltage to see if it can deliver current to a real load.
For automotive type work I like this DMM from Craftsman. Sears.com It has a very handy DC/AC clamp on for measuring current without disconnecting the circuit. It lives in my truck so it's always handy.