New energy battery cabinet negative pole grounding

Should a BYD battery pole be grounded?

Question 1: In the BYD example diagram (shown), in wiring unlimited and several other sources, it is mentioned that the negative battery pole should be grounded. In this case the BYD battery has its own grounding point, is this just the casing, or is that the negative pole?

Should a battery post be grounded to a negative terminal?

Grounding directly to the negative post is a fire hazard at worse, and an unnecessary risk to your equipment at best. Battery post connections also increase likelihood of ground loops and ground conducted noise. On a personal note, I'm not sure why USA and Japanese manufacturers instruct people to connect things to the negative terminal.

Which cable should be used for battery negative grounding?

In case of battery negative grounding and multiplus primary ground (chassis), information advice you to use same size that dc main cables as you suggest in no. 1a (or fuse rated). But which cross-section you suggest for the one earthing point to stake/rod/connection from the main grounding busbar? eg.

Should a Multiplus battery pole be grounded?

The Multiplus should prioritize Solar and Battery at all times, but it is connected to Grid in case batter SoC reaches 10% and there isnt sufficient solar available to recharge. Question 1: In the BYD example diagram (shown), in wiring unlimited and several other sources, it is mentioned that the negative battery pole should be grounded.

Where does a battery negative post connect?

The battery negative post and battery negative leads connect ONLY to major grounds, which would normally be the engine block (very heavy lead for alternator and starter current) and to the vehicle chassis for all other devices!

What is a battery ground?

That ground has to be a very solid low resistance connection. It is a direct connection to the battery with batteries near the engine, and often via the chassis with remote batteries. A ground must always connect from the battery negative to the chassis with all battery installations.