Four Weeks to 12 Months . Discharge the high voltage
battery until two or three bars
remain on the battery range
indicator (Battery symbol) on the
. Do not plug in the charge cord.
. Remove the black negative (−)
cable from the 12-volt battery
and attach a trickle charger to
the battery terminals or keep the
12-volt battery cables connected
and trickle charge from the
underhood remote positive (+)
and negative (−) terminals.