Forum Discussion

melloftus's avatar
melloftus
Explorer
May 12, 2019

Battery Disconnect switch/charging - ON OR OFF?

We recently purchased a (New to us) 2008 M-21CKS Mallard by Fleetwood being first time Trailer owners we have hit a few bumps in the road but so far so good. We enjoyed our first outing recently where...
opnspaces's avatar
opnspaces
Navigator III
May 12, 2019
Congratulations on the trailer and welcome to the forum. As Pianotuna said you basically need to have the switch on for all questions.

  1. The switch must be on for the battery to charge from shore power
  2. See answer above.
  3. Yes you can charge via the truck alternator if the switch is on. But really the alternator doesn't give a good charge. I would recommend your scenario 2 above. Plug the trailer in at home and let the battery charge for a few days or more.

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