Additional Batteries + Fuse upgrades
Hi,
Hopefully this is a fairly simple one to answer.
Currently have single 3.6kw inverter connected to a single 5.32 IP20 battery, the fuse currently installed in the battery isolator is a 100A NH1. Cables between inverter and batt are all Sunsynk provided.
I'm looking to increase my batteries to 3 in total(Same 5.32 ones) wired using parallel config.
My question is, are the Sunsynk medium battery-battery cables long enough to connect batteries when wall mounted vertically above each other. I need to mount them next to the existing inverter + batt, so the only tidy way of doing it is 1 above the other.
I understand i will need to upgrade the fuse isolating the batteries from the inverter. With 3 of these batteries and using Sunsynk cables whats the recommended size? I was thinking that based on nominal chg/dischg currents of 50A each that 200A should give the protection needed, but would rather get official confirmation before making purchases.
Many thanks
Keith
I have 18 panels producing up to 6.9kwh.
Currently on a decent morning the battery is full within a couple of hours. So the increase to ~15kwh of storage would allow us to run almost entirely off grid with the exception of high load situations.
Grid charging during dark months currently so that will remain the same, so would prefer to max charge the batts on cheap rates.