RV Battery question
We have two group 24 Interstate installed and recently we noticed they were not holding a charge (ie, after being fully charged and no load on them they dropped down to a low of 12.04v.in less than 8 ...
Forum Discussion
Veebyes wrote:Chuck_thehammer wrote:
only way to properly TEST a battery .... is a 100 amp load test..
most auto part stores test batteries.. just make sure its a 100 amp test.. all others are a waste of time...
think of battery power as water for a minute..
1 oz of water is 12 volts.
5 gallons of water is 12 volts.
the amount of water is the WORK.. not that water is there.
so you can have 12 volts and almost no amps.
so no work can be done...
Having your own is good. For $30-$40 saves the hassel of lugging the battery to Autozone, or whoever, & bringing it back.
You are Correct..
as I am a retired auto mechanic.. all of my STUFF is at home....
100 amp load tester...
1000 amp meter. yes 1000 amp (starter testing)
2 tool chests...etc. a ton of air tools... you name it.
but most do not own one .. an may test a battery every 8 years or so.
and where can you find a TRUE 100 amp load tester for 40 bucks?
mine was over 150.. 20 years ago.
