This problem seems to go on. I have a 2021 E-Boxer and managed to flatten the battery whilst updating the nav software!.I recharged the battery and all of the dash lights came up with warning lights. By disconnecting the start battery for about 1 min and then reconnecting the reset brought everything back to normal.
My question is :- is it feasible to jump start from the 2nd restart battery under the bonnet which doesn't discharge? If the answer is yes can we fit a paralleling relay/switch between the two to eliminate the jump leads?
