I have an on board charger for my trolling batteries. For my starting battery I charge it, when needed, with an "automatic battery charger" that's a popular brand/style. Here's the problem. It has a switch for Regular and Deep Cycle. When I try to charge on Regular it will show the battery is fully charged after about 1-5 minutes (even though it's run down below 50% by using a different battery tester and I know it's not fully charged). If I switch it to Deep Cycle it then seems to properly charge the battery. Is there any reason this happens or any problem in charging the starting battery under Deep Cycle? The tester used to work under Regular and about two years ago started doing this. Thanks for any help.
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leechlake
I have an on board charger for my trolling batteries. For my starting battery I charge it, when needed, with an "automatic battery charger" that's a popular brand/style. Here's the problem. It has a switch for Regular and Deep Cycle. When I try to charge on Regular it will show the battery is fully charged after about 1-5 minutes (even though it's run down below 50% by using a different battery tester and I know it's not fully charged). If I switch it to Deep Cycle it then seems to properly charge the battery. Is there any reason this happens or any problem in charging the starting battery under Deep Cycle? The tester used to work under Regular and about two years ago started doing this. Thanks for any help.
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