Moderated Discussion Areas
ContinuousWave: Small Boat Electrical
Winter charging of two batteries
|Author||Topic: Winter charging of two batteries|
posted 11-19-2006 09:30 PM ET (US)
Do I need anything special to maintain a charge on my batteries during the Winter? I removed them from the boat, and I have a charger that has an auto function to trickle charge once a full charge is reached. Do I just connect them in parallel with short appropriate guage cables?
posted 11-20-2006 01:47 AM ET (US)
I bought a Cristec charger 12V/25A.
posted 11-20-2006 09:53 AM ET (US)
Do not charge in parallel. You need separate charging
circuits for each battery (or just RELIGIOUSLY switch that
charger from one battery to the other every Sunday morning).
posted 11-20-2006 07:11 PM ET (US)
What Chuck said.
Roy - Swapping the charger becomes part of my Saturday morning routine in the winter. (Who knows why I'm too cheap to just buy a second trickle charger!). Every Saturday, I swap the charger to the other battery.
Now that I posted this, a second trickle charger has just made my Christmas list. Good gift idea for a cousin or something; plus it will be 5 more minutes I'll have free on my Saturday mornings!
posted 11-20-2006 07:56 PM ET (US)
I only charge my batteries a couple times during the winter. I'm too old to change my ways now.
posted 11-20-2006 08:51 PM ET (US)
Dave, I've been an exceptionally good boy this year. No, really, ask anyone.
Seriously, aren't batteries connected in parallel when they're charging on a single circuit on the boat?
posted 11-20-2006 10:23 PM ET (US)
Depending upon the type of charger, you may not want to leave it connected full time. Even a trickle charger can overcharge and damage a battery if it allows the voltage to drift upwards. Charging a standard flooded cell battery once per month should be adequate.
posted 11-20-2006 11:19 PM ET (US)
I added a permanently mounted on-board charger to my boat this year. As a result, I decided to leave the batteries in the boat over winter lay up. I plan to visit the boat periodically (at its indoor storage location) and plug the charger into a nearby 115-VAC wall outlet for an hour or two. I figure if I do this once a month I should be able to keep the batteries topped off all winter.
posted 11-20-2006 11:36 PM ET (US)
The permanently mounted charger is the solution to the problem I have been wrestling with for years.
It works for me in central Jersey where the winters are cold for months. I am lucky enough to have the boat stored on the side yard near a 110 outlet.
posted 11-21-2006 12:25 PM ET (US)
I also mounted an onboard charger, Cabala's Pro Sport 8, 2 banks. My batteries are in the center console and they are not the easiest to remove and replace.
posted 11-21-2006 12:30 PM ET (US)
posted 11-23-2006 09:42 AM ET (US)
Ditto what Con said. I don't think it's necessary to trickle charge them all winter. I also think they prefer a nice dark basement for layover.
posted 11-23-2006 12:10 PM ET (US)
A smart trickle charger will shut off. Both my boat and
my Corvette live on them. The last vette battery lasted like
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.