Good day, We got a 8KW Deye invertor, 16 x 535w JA Pannels and 6 x Shoto Lithium Batteries. We are installing a second 8KW inverter with 16 x pannels, Inverters will be connected parralell and adding another 4 Shoto batteries. Batteries connected to a bus bar. What size Battery cable must I run from the bus bar to the invertors? And what AC cable size from inverters to DB? DB is 45m from invertors.

Edited March 18, 20251 yr by Tertiusb
Spelling

Generally, Sunsynk recommends a 50 mm wire size for 8 kW inverter

If the cables are very short and preferably not enclosed in conduit, then it should be fine, but right on the limit. 79 mm or two 35 mm would be better

Depending on how you run your wires to the DB and what type of wire you use, on a 50Amp circuit breaker, you should be able to use 10 mm wire without excess volt drop or overloading

9 hours ago, James 1 said:

Generally, Sunsynk recommends a 50 mm wire size for 8 kW inverter

If the cables are very short and preferably not enclosed in conduit, then it should be fine, but right on the limit. 79 mm or two 35 mm would be better

Depending on how you run your wires to the DB and what type of wire you use, on a 50Amp circuit breaker, you should be able to use 10 mm wire without excess volt drop or overloading

No 79mm available. I am sure a typing error via spell checker for 70mm