October 20, 20205 yr Hi All, 2xPylontech US3000 I have a ton of battery questions that I first need to research, but right now the biggest panic is heat. ICC says that my batteries are running around 37deg at the moment, with a big AF fan on the side, surely this is not great. Usually its ambient +3.. but ambient today is hotter then mamma in the 3rd grade... How bad is it, when do I turn the batteries off.. 40? Edited October 20, 20205 yr by Leonard
October 20, 20205 yr From the manual: Working Temperature 0℃~50℃ Charge -10℃~50℃ Discharge Having said that, I think you are right to be worried. High temperature is one of the biggest factors affecting battery life. I am building an actively cooled enclosure for mine - I want them to stay near 25°C.
October 21, 20205 yr 21 hours ago, Leonard said: hotter then mamma in the 3rd grade... Not sure if I should be worried here or not 😉
October 21, 20205 yr You can also try reducing your charging current setting on the inverter. If the batteries charge at a slower rate they will not heat up as much. I have 2x Dyness B3 3.6kWh batteries, which are quite similar to the Pylontech US3000. I reduced my charging current from 40A to 20A, and it makes a difference of about 2-3 degrees in the peak battery temperature. I also keep my garage door open for extra ventilation.
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