Not as dramatic as the title suggests, but would love a few glances over this drawing to make sure I haven't missed a fuse or have the wrong size cable somewhere etc
This is the major 12v wiring going into my van, from start to fuse boards.
The system will be powered by a 400Ah Winston LiFeYPO4 battery with 123 Smart BMS. The only thing this changes from a normal Lead-Acid battery system is the chargers and the relay.
I have almost everything here to install. Just need to order the charger and inverter (in hand) and a few odds and sods. It's the odds and sods I've done the drawing for, as was losing track of what I need to buy
From the leisure battery positive there is a 150A master fuse.
From the fuse the cable splits into two. This is so all inputs (chargers) run over one cable and all outputs (12v devices, inverter) on the other. This allows my battery management system (BMS) to read input and output currents separately. It can then switch either off if needed, and gives real-time data on battery charge level, charge status and usage to my phone.
For anyone interested, the charger I've chosen works with the BMS to shut off charging if needed. The relay controls the outputs.
All wiring to the inverter needs to be 35mm. Wiring between the leisure and starter battery, and charger needs to be 25mm.
I'm using three separate fuse boards in my van, each with their own negative connections point. I've done it this way as there's a lot of electrics being fitted and having the three fuse boards in different sections of the van makes cabling simpler (no voltage drop annoyances).
I haven't bothered with an isolator as I can pop a fuse if needed.
Just noticed I forgot the fuses between the starter battery and charger. I'll add one either end of this cable (charger charges both batteries).
Can anyone spot anything I've missed? Or something that's wrong?
Really appreciate any help. Head is spinning today
This is the major 12v wiring going into my van, from start to fuse boards.
The system will be powered by a 400Ah Winston LiFeYPO4 battery with 123 Smart BMS. The only thing this changes from a normal Lead-Acid battery system is the chargers and the relay.
I have almost everything here to install. Just need to order the charger and inverter (in hand) and a few odds and sods. It's the odds and sods I've done the drawing for, as was losing track of what I need to buy
From the leisure battery positive there is a 150A master fuse.
From the fuse the cable splits into two. This is so all inputs (chargers) run over one cable and all outputs (12v devices, inverter) on the other. This allows my battery management system (BMS) to read input and output currents separately. It can then switch either off if needed, and gives real-time data on battery charge level, charge status and usage to my phone.
For anyone interested, the charger I've chosen works with the BMS to shut off charging if needed. The relay controls the outputs.
All wiring to the inverter needs to be 35mm. Wiring between the leisure and starter battery, and charger needs to be 25mm.
I'm using three separate fuse boards in my van, each with their own negative connections point. I've done it this way as there's a lot of electrics being fitted and having the three fuse boards in different sections of the van makes cabling simpler (no voltage drop annoyances).
I haven't bothered with an isolator as I can pop a fuse if needed.
Just noticed I forgot the fuses between the starter battery and charger. I'll add one either end of this cable (charger charges both batteries).
Can anyone spot anything I've missed? Or something that's wrong?
Really appreciate any help. Head is spinning today