What amp Class T fuse do I need for a 400Ah lithium battery bank in my van?
Size its amps to the main battery cable, not to the bank. The Class T has to sit above everything that cable carries at once, with margin, and at o...
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Do I size a fuse to the wire or to the load in a camper van build?
The fuse protects the wire. With one device on a circuit, rate the fuse at the device's rating or the cable's, whichever is lower. With several dev...