AC300 - PV Input Reduces with space heater 1.4kw load

Product Discussion BLUETTI AC Series
1

New owner here. AC300 and 2 B300
So, now that I have my PV up and working on both controllers (3- Renogy 320 per controller), it seems like when I am charging (works well), and then I turn on the space heater, OR reduce the space heater settings, the PV input drops dramatically, over 1/2, this when I am over 80% full on both. Is this normal? Or is the ac300 just adjusting on the fly???

2

Which DSP firmware version are you using? I had a similar issue, and DSP firmware v4031.25 fixed the issue for me.

1 Like
3

I have DSP v4031.16…does not say I need to update. how do you do that?

4

@LukeWarm Please provide me with the SN of your AC300 then I will push the firmware for you.

5

SN ac30022220000439442

6

batteries discharge at different rates as well

7

@LukeWarm Thank you. The firmware was pushed your your AC300, please check.

For this problem, please check if there is a new BMS firmware, if yes, please update to the latest one. Also, please do a full cycle of charge and discharge to correct the SOC.

8

@LukeWarm Hi, is there any updates?

9

After the updated firmware and the recharging the batteries from zero, everything seems to be woking fine. PV shows continual state and the output shows the continual state. Now I need more batteries, 2 is a minimum…of course…

10

@LukeWarm Thanks for your update.