Batteries Capacity: 1st bought 3x LifePower4 100 Ah= 5 kWh/pack. Then bought 302 AH lifeP04 16s Am I mess up???

[HermanD]

Hi, I think I screw up. At first I bought the 3x 5 kWh battery rack: lifepower from Signature solar 16s x 100 amp = 5.12 kWh each and bought 3. 3 of these are in it's own box with 3 of it own BMS from Signature Solar (batteries Rack). that is 4500 USD total... expensive... Then I found out the 302 Ah batteries cells from Docan power that Amy sold is cheaper. I bought 16s 2500 USD. Thes batteries are 16s 302 amp at 3.2 v this made it 15 kWh and using Overkill Solar BMS 100 Ah 48v. I was a noob, did not buy 200 AH BMS.
Am I mess up the batteries pack size in Ah???? all of this go to the same Busbar that supply the power to the inverter EG 6500 EX 120v 48 v system ???? Solar is 4600 wh max in summer. Winter Max at 3000 Wh, charge max at about 48 Ah after mppt show on App total, but would spread out equal to the 4 BMS's on the JBD of 16s x 302 AH show about 26 Ah when it charge at full sun 12 PM. Any easy example to understand about batteries pack size?

Am I mess this up? or it's ok because batteries set/pack are base on Voltage? after each BMS?
All connected to the same Busbar then connect to Inverter

I am a noob to this. thanks a lot.

 

[timselectric]

Should work just fine.
Just make sure that the voltage is very close when you connect them together.

 

[hayhayday]

The eg4 packs together and 16s pack are roughly the same size so you should be able to pull roughly 200A total (limited by 100A bms on 16s pack supplying roughtly half) which should be more than enough for the 6500ex. If 26ah out of 48ah went to the 16s pack that seems about right and each of the eg4 packs should have received about 7ah (48-26=22/3). BMS doesnt regulate output it just protects the battery from high\low voltage or excessive current, the charge\discharge should be roughly proportional to capacity.