EG4 Community Forum

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Joined: July 23, 2025 1:42 pm
Last seen: March 10, 2026 3:54 pm
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RE: EG4 14.3kWh indoor wall mount battery BMS comms issues - resulting in blackouts, power blips, and charging restarts

@natwall1 If you have the Indoor Wall Mount batteries read the post from "Krzysiek_KTA" above. The solution he found to the brown outs that we were...

4 months ago
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RE: EG4 14.3kWh indoor wall mount battery BMS comms issues - resulting in blackouts, power blips, and charging restarts

@krzysiek_kta K Wonderful news. How long was "quite a while" for the battery to be off? My tech guy had me do the standard total shutdown/rest...

6 months ago
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RE: EG4 14.3kWh indoor wall mount battery BMS comms issues - resulting in blackouts, power blips, and charging restarts

Pawnee, Yes, both K and I (at least) have used this to try to make our solar systems work properly. We have different inverters but K has done som...

9 months ago
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RE: EG4 14.3kWh indoor wall mount battery BMS comms issues - resulting in blackouts, power blips, and charging restarts

i've copied this message from another thread on this subject. My equipment is, FlexBoss21 and indoor 280 AH Lithium Wall Mount Battery. K Well it'...

9 months ago
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RE: outage blips Flexboss21 + gridboss21

@krzysiek_kta K' Well it's been about five weeks since I changed my Battery setting from Lithium to Lead Acid on 7/29. My home owners insurance...

9 months ago
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RE: outage blips Flexboss21 + gridboss21

@cowsaround After speaking with EG4 Tech support (903-609-1988 option 2) I decided to use the solution that Krzysiek_KTA used. The Tech I had on th...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

@krzysiek_kta I have had the Lead Acid as my battery type since yesterday morning and no blackouts so far. (knock on wood) i may be missing somet...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

@frankorth Frank, I was a newbie in November so I won't give advice on the items you on your much larger system than I have. Reading my story abo...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

@krzysiek_kta Just got off the phone with EG4. By setting the battery to Lead Acid the main difference is you loose some advanced functionality. ...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

@krzysiek_kta I'm calling EG4 support again in the morning. What Voltage did you use for charging the wall mount batteries in the lead acid mode? ...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

Well, I just had a power outage at 2:08 and it was restored at 2:08. they always last a few seconds. 🙁

10 months ago
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RE: outage blips Flexboss21 + gridboss21

Yes, mine is set to lithium and my battery is an indoor wall mount. On Wednesday I restarted the system for a second time. Fingers crossed no blacko...

10 months ago
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RE: outage blips Flexboss21 + gridboss21

I have been having the same problem. My FlexBoss21, GridBoss and wall battery went online in November. No hardware changes but I took the advice on t...

11 months ago