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Old 19-05-2016, 18:17   #1
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Join Date: Aug 2010
Location: NSW Australia
Boat: Traditional 30
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That Duh vs Lightbulb moment.

I was unsure about the condition of my house and starting battery. Spoke to a mate who is an auto electrician who offered to lend some some testing gear.
But prior to giving it to me he got me to have feel of the sides of the batteries.

He said "If they are sightly convex (popped out) the batteries are stuffed."
Mine certainly were convex. Its the cells expanding due to build up on them. Thus causing the battery to physically expand.

I have diddled with boat electronics and 12 volts for 30 years an this one never hit me. It was that moment when I thought "how did I not know this before- duh?"

Anywho,, Hope this snippit will forearm someone else in the future.
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Old 19-05-2016, 18:29   #2
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Re: That Duh vs Lightbulb moment.

Quote:
Originally Posted by ozskipper View Post
I was unsure about the condition of my house and starting battery. Spoke to a mate who is an auto electrician who offered to lend some some testing gear.
But prior to giving it to me he got me to have feel of the sides of the batteries.

He said "If they are sightly convex (popped out) the batteries are stuffed."
Mine certainly were convex. Its the cells expanding due to build up on them. Thus causing the battery to physically expand.

I have diddled with boat electronics and 12 volts for 30 years an this one never hit me. It was that moment when I thought "how did I not know this before- duh?"

Anywho,, Hope this snippit will forearm someone else in the future.
Good observation.
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