[RE-wrenches] GSL Energy LiFePO tripping out issue

[Mac Lewis]

I'd look for weak/loose internal control circuitry, especially connected to
the K3 contractor or it's drive coil. Grab, pull, twist all connectors and
see if the relay responds.

Good luck 🤞

On Mon, Apr 7, 2025, 4:54 PM Maverick Brown via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> What voltages are you using with it for ABS? Are you running open loop?
> Does the battery pretend to be Pylontech or some other protocol?
>
> Maybe the BMS is tripping from high volts, even for a brief period.
>
> The spec does say maximum of 56V.
>
> Most all other 16S LiFePO4 can go much higher, in theory to:
>
> 3.65 max cell voltage = 58.4
> 3.5 vpc is 56V
> 3.45 vpc = 55.2V, my favorite sweet spot
> 3.4 vpc = 54.4 is preferred by a few vendors.
>
> Is the Sol-Ark on the internet so you can look at voltage charts? If so, I
> can look at it if you want/can share it.
>
>
> Absorb time is another story.
>
>
> Thank you,
>
> Maverick
>
> Maverick Brown
> Off-Grid Solar Commander since 2006
> Maverick Solar Enterprises, Inc.
>  • Solar Commander Remote Power
>  • SunFlow Systems Cathodic Protection
> maverick at mavericksolar.com
> 512-460-9825
>
>
>
> On Apr 7, 2025, at 5:00 PM, Kevin Pegg via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> 
>
> Hello Wrenches,
>
>
>
> Has anyone seen this before? I’m dealing with a battery bank that keeps
> tripping out, opening the K3 contactor, randomly. I can’t find any pattern
> nor cause. Voltage is ok, load ok, temperature ok. It could be during the
> day under PV charge, or in the evening. The battery bank is paired with a
> SolArk 15k. Same behavior if it’s closed loop or open loop voltage-based
> control. SolArk tech support said it was not supported in closed loop. GSL
> tech support has not been useful and refuses to address the issue at hand.
>
>
>
> This is close but not exact model.
>
>
> https://www.gslenergybattery.com/20kwh-wheel-design-solar-energy-storage-battery--2048kwh-lifepo4--modular--scalable--10-year-warranty--ul-certified
>
>
>
> I wrote about this same project Dec 2024 was able to recover a frozen and
> 18 months abandoned deeply discharged battery bank. Capacity wise, they are
> fine. This site is not continually occupied; I just don’t know how to get
> it to the point where the system is reliable. Tempting to bypass the K3
> contactor, as it still would have a secondary one for safety.
>
>
>
> Kevin Pegg
>
> EA Energy Alternatives Ltd.
>
> 37471 Hwy 16
> <https://www.google.com/maps/search/37471+Hwy+16?entry=gmail&source=g> E
>
> Telkwa, BC  V0J 2X2
>
>
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