Thanks Dave.  That’s why I am asking.  Does the heart beat come through the Can 
Bus?  There are a lot of these around that did not work as intended.  I am 
consdidering opening this one up and reconfiguring for 56 volts.  This one is 
450 volts.  Maybe that’s what the H stands for.
David

[cid:image001.png@01D9AB4A.CA07F8F0]
David Katz
President
www.tamaracksolar.com<http://www.tamaracksolar.com/>
(707) 222-6240 Ext: 105 | (707) 832-7487
dk...@tamaracksolar.com<mailto:dk...@tamaracksolar.com>



From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of Dave 
Angelini Offgrid Solar via RE-wrenches
Sent: Friday, June 30, 2023 10:41 AM
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Cc: Dave Angelini Offgrid Solar <offgridso...@sti.net>
Subject: Re: [RE-wrenches] LG Chem RESU10H Battery Question

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  offgridso...@sti.net<mailto:offgridso...@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



[cid:image001.png@01D9AB4A.CA07F8F0]

David Katz

President

www.tamaracksolar.com<http://www.tamaracksolar.com/>

(707) 222-6240 Ext: 105 | (707) 832-7487

dk...@tamaracksolar.com<mailto:dk...@tamaracksolar.com>







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