Batterry expansion with eco flow?

[timmo2552]

Hi, I have (2) eco flow delta pro units. Can I add rack mounted batteries to these units? I would like to combine the 2 delta pros with a larger second batterry than eco flow offers. Thank you

 

[Browse]

If you're not using solar, you could likely feed the PV inputs with your external batteries but you'd be limited on the current.

 

[n2aws]

If you're not using solar, you could likely feed the PV inputs with your external batteries but you'd be limited on the current.

I'd be careful with feeding MPPT's with batteries. I've seen that destroy more than a few charge controllers.

 

[timmo2552]

If you're not using solar, you could likely feed the PV inputs with your external batteries but you'd be limited on the current.

Thanks

 

[timmo2552]

I'd be careful with feeding MPPT's with batteries. I've seen that destroy more than a few charge controllers.

Thanks, not sure I understand completely

 

[Browse]

This guy hooked up a rack mount battery providing 800W through the PV input. He then put 2 in series and provided 1600W @ 100V. I wouldn't recommend the series setup though.

 

[timmo2552]

Wow, thanks. That's great. If I'm using 2 eco flows to get 230 volts? Could I spit the input from batteries to feed 2 banks?

 

[Browse]

Wow, thanks. That's great. If I'm using 2 eco flows to get 230 volts? Could I spit the input from batteries to feed 2 banks?

I would think so. Each unit will draw up to its maximum current.

 

[timmo2552]

Thanks