Return to article: How to Test a Car Battery With a Multimeter
on 10/1/2008 I have a battery that goes drains for some odd reason. I recharge it then its ok for a whole month. Then starts to drain. I have a multi meter but I have no idea what or how to check what might be draining the battery. It looks like a fairly good batter, maybe 1 year old or so more. Do you know batteryguy??
on 7/29/2008 That’s a bogus test for a bad battery. If it is running and only has 9.6 at the battery its time to test the charging system. 9.6 volts is what most ignition systems take to operate, leaving nothing to run lights, radio, wipers etc.. To properly test a battery it needs to be charged to 75% (12.4 ) and then tested under a load.
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