2 in parallel

EG4 lifepower docs say don't use jumpers for parallel 2 batts. So how do you do them without ?you have to connect them to each other...
( no server cabinet)

Ideally connect them to bus bars.

If you want to do jumpers, it can be done with care and the right sized wires. It can be done in a diagonal or straight through pattern.

I would say, and they're probably saying, don't use those included jumper wires. Those are only like 6 awg or something, and they're for server racks with 3+ batteries. Need bigger wire to jumper 2 together.

You want to make sure you don't double land on the terminals and that is why you need the external bus bars.

It would be something similar to this: connect the positive terminals of both batteries to one bus bar and the negative terminals of both batteries to another bus bar. Then, connect these bus bars to the inverter.