[RE-wrenches] LG Chem RESU10H Battery Question

Dave Angelini Offgrid Solar offgridsolar at sti.net
Fri Jun 30 10:40:35 PDT 2023


Hi David,

I own and tested the 48V version Resu10, not the 10H that you have. On 
the one I have, the battery needs a heartbeat signal to operate.
Without that signal from the inverter or a device that talks to LG 
battery the contactor will open and shut down the battery.

This was a pretty early lithium offering and has proven to be very 
undesirable. We destroyed 2 of the Resu 10's with XW charge currents.

Not sure if your plan is safe. Maybe the guy's here will know more. I 
would hold off until. Good Luck

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridsolar at sti.net
text 209 813 0060

On 2023-06-30 9:39 am, David Katz via RE-wrenches wrote:

> I have an LG Chem RESU10H Battery that was originally sold with a 
> SunnyStorage inverter.  Does anyone know if there is a way to turn on 
> the battery output terminals so it can be charged without the inverter. 
> No lights come on when you turn on the main switch and the output 
> breaker.  There is a small terminal strip for control wires. There is a 
> 12V + and - terminal and a Batt En terminal.  Does any one know if 
> powering the Batt En. Terminal turns it on?  I am going to try that but 
> I am not sure what voltage that terminal wants to see.
> 
> Thanks
> 
> David Katz
> 
> David Katz
> 
> President
> 
> www.tamaracksolar.com [1]
> 
> (707) 222-6240 Ext: 105 | (707) 832-7487
> 
> dkatz at tamaracksolar.com
> 
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