I’m building a 24v overlanding system with 3x 24v 200AH ‘smart’ batteries. These batteries have internal BMS and VE.can output so no shunt or external BMS is required, they plug straight into Cerbo.
I know this is getting to the extremes for a 24v system, but the battery configuration and available space (plus my PV panels) preclude going to 48v unless I drop capacity by 1/3. The batteries have a constant power rating of 150A and a peak rating of 300a each. Expected current draw is about 300 amps (2xMultis @~100a each, plus ~80a DC-DC) but max current for each Multi is ~250 and DC-DC is ~100a, taking me outside 4/0 cable rating. My plan is to limit this using Mega fuses to each Load and to each Battery.
I’m planning on using a Lynx Distributor for connecting the batteries in parallel and then another Lynx Distributor to connect my loads (2x Multiplus 24/3000/70 in split phase, 150/85 MPPT & DC-DC 24/12) and allow me to fuse everything individually.
Wth no Lynx Shunt or Lynx BMS required, can I connect the two Lynx Distributors together and, if so, would this not be counter to the Victron (and other) wiring suggestions where you should draw the positive from the nearest battery and the negative from the furthest battery in a parallel configuration?
Should I use 4/0 cables to take the negative from the right hand (ie ‘furthest’) side of the ‘Battery’ Distributor negative bus bar to the right side busbar of the ‘Load‘ Distributor, andbthen using an equal length cable connect the left hand (‘near’) positive busbar of the Battery Distributor to the right side positive busbar of the Load Distributor, instead of connecting the 2 Distributors together?