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mblowes avatar image
mblowes asked

BMS 12 / 200 Fusing

The BMS 12/200 comes with a 100A fuse in the AB location meaning that 90A only will go from the alternator to the start battery.

In the box came a small pcb.. that fits the fuse location.. it came with 2 x 7.5A (automotive fuses). Do I assume that this in AB location will to about 3A? .. if I have just 1 x. 7.5 A fuse is will limit to to about 5A to the start battery.. and say I put a single 30A fuse in.. it will limit to about 25A roughly?


Lithium Battery
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Johannes Boonstra (Victron Energy Staff) avatar image
Johannes Boonstra (Victron Energy Staff) answered ·

Hello, the default 100A fuse will result in the 80A charge from the alternator (as the AB takes about 80% of the fuse value)

2 x 7,5A will give 80% of 15A.

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