I would add, turn off the Alde control panel first. Also, go under the driver side bed/bench and locate the Alde. There is a plastic lid that lifts up to expose the 12V cable. (View Post)
@WebTab2021 - we have seen this when the 400s first came out with the large 200 Amphr AGM battery. As Marceline suggested, use a smart charger designed for lithium batteries to charge your batteries.… (View Post)