Battery charging question

Our trailer is in use in warm climates during the winter. However our boat remains in cold Ontario.

For the past 38 years I have looked after the batteries by fully charging them late Oct early Nov and then disconnect ALL loads. In the spring in Apr put a charger on them to bring them back to full charge.

In cold weather with no load batteries are fine all winter load left in place.

Hi All,
Thanks for the information! This is a great group. I've posted to questions so far and no one has been rude :)

Thanks again,
Dave

When covered my TT’s batteries are kept full with a 10 amp water resistant controller and small solar panel.

I am with the group that disconnects the battery if the TT is setting for s month or two. If it is setting all winter I bring the battery into the house.

For short term (couple months or less) just disconnect the battery. For longer periods after disconnecting use a battery tender or every month or so connect to a charger for a day. Either way be sure to check the fluid level periodically.

My trailer sits in unpowered storage when not in use. Anytime I know it's not going to be used for a while then I'll pull the batteries and put them on the trickle charger at home.

If you have electricity available where you store your trailer, just plug your shore power cord in.
If there is no power available, either use a small solar charger or a battery tender as others have said.
Happy camping!

Add a modest solar charging system.

Or use the disconnect switch.

I use battery tenders on my batteries.