I am within 2 months of ordering what I need for a whole house system using max 5kwh per day. I have received a lot of good advice so far and because of the lack of hardware and reasonable shipping I'm going for preassembled batteries either through Xuba or through Amy at Shenzhen Luyuan. Before I order I'd like all my ducks in a row to ease communication with Chinese vendors.
I'm looking for batteries of 50# more or less to lessen the chances of damages when handled in this 'third world' country, so looking at 4 12v 200ah or 2 24v 100ah batteries in series for 48v, more later if it's not enough to get me through bad weather for a couple days. Two back to back hurricanes a couple months ago gave me a serious reality check.
My concern is BMS for multiple batteries in series. Is there a way to make the internals play nice or is an external BMS preferred, and if so will it complement the existing internal BMS or do they need to be disabled? Does an external simply mount externally?
Obviously I'm not an engineer. My profession was a ship's navigator which is no help at all here.
I'm looking for batteries of 50# more or less to lessen the chances of damages when handled in this 'third world' country, so looking at 4 12v 200ah or 2 24v 100ah batteries in series for 48v, more later if it's not enough to get me through bad weather for a couple days. Two back to back hurricanes a couple months ago gave me a serious reality check.
My concern is BMS for multiple batteries in series. Is there a way to make the internals play nice or is an external BMS preferred, and if so will it complement the existing internal BMS or do they need to be disabled? Does an external simply mount externally?
Obviously I'm not an engineer. My profession was a ship's navigator which is no help at all here.