The onboard charger and main pack fuse are in the void between batts. The charger is just a bridge rectifier on a heat sink. It is connected to the 120V inlet (reverse of an outlet) in the old fuel filler door. With a 144V nominal pack voltage it is self limiting and will taper to a minimal maintenance current if left plugged in. The fuse is in the middle of the pack so it will isolate the pack into 2 lower voltage segments if it blows.

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