I have a Sol Ark 15k with approx. 15k solar, and 30kwh EG4 battery bank that was commissioned about 18 months ago (and everything is working great). I've purchased a second 30kwh EG4 battery bank and am prepping to bring it online. At the risk of getting flamed for a dumb question - Do i need to bring the whole system down to connect the new bank, or can i simply shut down the battery breakers, connect the second bank positive and negative and flip the breakers back on (battery breakers first, then main inverter breakers)? My plan is to take both offline, fully charge / balance both banks before bringing online.