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Posts: 305
Location: Illinois | I own 2 batteries and alternate them. Recently, the newer and more expensive of the 2 batteries has caused me to scratch my head. When I switch to the battery it marks full charge. After using the battery only minutes it begins to lose power. After 5 minutes of use it will say low charge on my indicator. I figure the battery is just bad, but I wanted to see the power status so I put it on a charger, which has it's own status indicator, and it reads that it is still at full charge . Switch it back and it loses power again almost immediately.I have no problems with the older, less expensive battery. What could be causing the incapatability between battery and motor? |
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Posts: 299
Location: Nowheresville, MN | Is there still water in it? |
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| Sounds like you have a bad cell or two. I just had to replace one that was causing me the same problem. I took it to a auto parts store. They put it on a tester and verified it was bad. |
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Posts: 305
Location: Illinois | Yes, battery still has water. Thanks for the quick responses. |
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Posts: 5874
| If the battery has a bad cell, it will read less than 12.6 volts, fully charged. If the plates are sulfated, or the electrolyte is diluted, it will not have any reserve, even though it says charged. Take it back, and they'll find it is bad when they load test it.
I had to buy a new starting battery this weekend. It wouldn't start the big Merc after running the livewell and locator for 4 hours. That's never been a problem before this year. Battery was a new Interstate. |
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Battery Issue