I have a 5+ year old battery. I purchased a battery tester and am still learning. Here’s the data. What’s it telling me about my battery? Still good, starting to decline, etc…?
Battery Test
Health: 79% 585 CCA
Charge: 36% 12.16 V
Internal R = 5.08 mΩ
Rated: 660 CCA
Cranking Test
1612 ms
Cranking Low
8.54 V
Charging Test
Loaded 14.71 V
Unloaded 14.78 V
Ripple 244 mV
Thanks.
It's telling you that battery needs to be replaced and to check your charging system as well.
Declining.
Thanks.
When you’re looking at that data, what stands out to you telling you it’s time to replace it before it dies and leaves you stranded?
Charge - 36% 12.16v
Cranking Low - 8.54v
Remember, the first couple of cold Fall weather mornings always seem to send otherwise good batteries into the marginal zone, with the inadequate zone not far ahead.
Thanks again.
Get a new battery. Sounds like the alternator is working OK though.
