Prepping my
boat for the spring launch from
winter storage on the hard, I had run my 4
AGM batteries down to <5% due to using lights, winches, etc... I then connected a
shore power to recharge the house
batteries back up to full. Three of the batteries charged up quickly to 100% but after 3 days of
charging, one of the 4 AGM's seems to only get to a 48% charge.
Engine and
windlass batteries topped off to 100% also. The
boat and batteries are only 2 years old.
Note: I'm running a 110v/15a extension chord
power line split (both sides hot) adapter into the 50amp boat
power. I'm not in the
water so I can't run the engine/alternator for power or my 50a line.
Any quick thoughts? Is this perhaps a bad
battery or might this issue be rectified when I'm back on a full 50 power line or running
engine?
Thanks so much!