I’ve found that of the 3 * 5.6 batteries, 1 had a different bracket size. 2 have the serial numbers starting BJ** and 1 BK**.
There are two different datasheets, and here are the differences.
BK** - 90% DoD. 60A charge. 54kg. 10 year warranty.
BJ** - 80% DoD. 50A charge. 63kg. 12 year warranty.
Which should be the “master”?
Can a BJ** 5.6 be firmware upgraded to do a 90% DoD?
Any other differences I (or the installer) should be aware of?