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Zero volts in my battery?


Guest Cattleya

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I was on the boat recently and checked how many volts are in one of my batteries, a 120ah one which is 4 years old. It showed zero volts. I left it on charge for 24 hours and it was still zero volts. I presume it's dead?

How big a battery do I need as a replacement to start at BMC 1.5, could I get away with 85ah? They are a lot cheaper.

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It showed zero volts. I left it on charge for 24 hours and it was still zero volts. I presume it's dead?

Most definitely. Once a lead-acid battery has been discharged to that extent it rarely recovers. Even if it could be charged it's capacity would be severely reduced.

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