- #1
erotavlas
- 32
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I have a booster pack that I think has a 12V battery inside. One of the typical ones you get at a hardware store with air compressor, booster cables, light etc. Anyway it is at least 7 years old. I recently tried jump starting someone's car with it but it wouldn't, I think I was able to in the past though.
Since it couldn't jump start the vehicle I though maybe its time to replace it or the battery inside. Is there a way to check how 'healthy' the battery is?
I have a multimeter and checked the voltage with no load. I read close to 12V. then I read the voltage with load (air compressor turned on) and it read about 11.3V.
I'm not sure what this means or if there are other readings I can take (like current).
Thanks in advance
Since it couldn't jump start the vehicle I though maybe its time to replace it or the battery inside. Is there a way to check how 'healthy' the battery is?
I have a multimeter and checked the voltage with no load. I read close to 12V. then I read the voltage with load (air compressor turned on) and it read about 11.3V.
I'm not sure what this means or if there are other readings I can take (like current).
Thanks in advance