Join Date: Dec 2004
Location: Portugal, West Coast
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AGM batteries: Someone using them?
AGM batteries have a big defect, they are expensive but have many advantages and mainly two that make them very interesting for cruisers:
1 – They lose very little charge so they can be let alone with minimum maintenance if you don’t use the boat in the winter.
2 – And main advantage, they charge 3 times faster than normal batteries.
Providing you have a big enough alternator this means that you have to run the engine for 3 times less hours (for charging) than with regular batteries. This is a huge advantage and will make them not expensive at all because the running hours of the engine are expensive. Of course the main advantage is that you gain a much bigger electric autonomy on your boat.
Well, this is what I have read and it is consensual but I would like to know if someone is using them and if this works out like that in reality, meaning if there really are a big difference in charging time?
Last edited by PCP; 03-09-2012 at 06:11 PM.