I just paired (in parallel) a brand new 280aH LifePo4 (3.2V Prismatic Cells) and a similar 230aH bank each with their own 150A BMS (batteries are the same chemistry and made by EVE). Both were top balanced and fully charge when paired.
In testing my battery bank with the 1500W inverter and running a 800W heater, I noticed (Via Bluetooth Monitor on BMS's) that the 280aH battery was drawing ~39A while the 230ah bank is drawing ~21A. It is roughly 2/3 to 1/3.
This is the first time I have done this where I have had the capability to monitor individual banks, and I am assuming it is not right. Further, I am assuming this may be due to an internal resistance difference (to include leads and connections).
Any advise on where I should start... I'd think the battery drawing only 1/3? May move the ground lead first to the other battery to see if that changes anything, then check all connections and leads (which I crimped).
Just hoping to save some time and only tear apart one battery to check it out.
Help?