Cheap equipment!

[Rednecktek]

Wiring correctly to let the BMS do its job is also a good safety.

Seriously gang, troubleshooting by buying a bunch of expensive niche equipment then making an overly complicated system to run the expensive niche equipment probably isn't the best Step 1 out there.

Just sayin'

 

[sunshine_eggo]

A good bms shutdown.
Cheap junk not.

Name me a BMS that can handle 100V+

Any recommended “protection” for such instances ?

Prayer?

The 900V high voltage control relays that battery hookup had for awhile would be useful on the PV to MPPT wire, but you'd need a separate control system, i.e., if voltage at battery terminals is > something a little above BMS voltage, go open circuit and stay that way until reset manually.

 

[Suijkerbuijk]

Name me a BMS that can handle 100V+



Prayer?

The 900V high voltage control relays that battery hookup had for awhile would be useful on the PV to MPPT wire, but you'd need a separate control system, i.e., if voltage at battery terminals is > something a little above BMS voltage, go open circuit and stay that way until reset manually.

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Or my own bms that can handle up to 80volts spike.