Brian:
In the Fall, the first thing I do is check the fluid level(s) in each
cell making sure the lead plates are covered in water (always use
distilled water). Then they get a full charge until my battery charger
reverts to maintain mode. I always follow up by checking the specific
gravity of each cell which should be around 1.27 (I think from memory).
If the specific gravity is not good, they will not hold their charge.
If all checks out, then I completely disconnect the batteries from
everything so there is nothing to draw a current.
I have left them the whole winter without a top up charge. This past
Spring, one was 12.4V, the other 12.5V. Some winters I have gone
aboard and given them an occasional top up charge but if the specific
gravity is good and they are fully charged before layup, it is not
necessary. They will be fine.
Even though the batteries have carrying straps, there is no way I am
taking them off.on the boat when it is totally unnecessary.
Rob Abbott
AZURA
C&C32- #277
Halifax, N.S.
On 9/23/2019 10:56 AM, nausetbe...@optonline.net wrote:
Rob,
What is your winter procedure to get such long life? I have been
removing my 3 flooded batteries and storing them in my garage, giving
them a monthly charge “top up.” Would much rather not carry them down
and then back up the ladder comes spring. My boat is 1 hour away in
the winter so do not get there that often to give them a regular charge.
Do you charge them on regular visits to the boat? Do you disconnect
them and let them sit, with very slow self discharge during the colder
months?
Thanks,
Brian
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