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Growatt SPF 3000tl lvm es battery voltage incorrect

joshualeroy

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Joined
Nov 18, 2021
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I've got two of these inverters, the BMS and the other inverter shows the correct voltage, but the one is off by 0.9-1 volt consistently regardless of charge level. The reading at the terminals of the inverter is consistent with the BMS and the other inverter. The batteries are LiFePo4. Is there anything I can do or does this thing just need replacing.
 
Fixed, the seller replied very quickly with a solution. Hold both arrows to enter a mode to adjust it. password is 111
 
I can confirm this also works on the SPF 5000 ES.

It always bothered me but not enough to actually start looking for a solution until just 5 minutes ago when I finally buttoned up my 32kwh battery storage where I calibrated the JK BMS Voltages and Amperage counter. It finally just irked me enough that everything was reporting as measured except one SPF inverter with a .5 volt deviation.
Sorted, thanks for the tip. Interesting service menu.
 
I can confirm this also works on the SPF 5000 ES.

It always bothered me but not enough to actually start looking for a solution until just 5 minutes ago when I finally buttoned up my 32kwh battery storage where I calibrated the JK BMS Voltages and Amperage counter. It finally just irked me enough that everything was reporting as measured except one SPF inverter with a .5 volt deviation.
Sorted, thanks for the tip. Interesting service menu.
Please provide more direction here. I have a 48V Lithium Battery ... https://www.bctvnergy.com/lithium-b...ery/48v-200ah-lithium-lifepo4-deep-cycle.html. With 2 GW 5000 ES in Parallel. Voltage is off on the Inverter vs the Battery LCD Readings by about 2V ! So the Inverter shows 75% SOC when the Battery is fully charged. Please kindly explain how best to reset or calibrate. Thank you !
 
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