Morning! Have searched but cannot find my exact issue. It’s winter here now in New Zealand, and with that, far less solar generation. Bought a generator to supplement charging - was not plug and play, but a quick search showed me I needed to select adaptive charging. Boom! 1200 watts pumping into the unit. Two days of charging (we are on day 8 of little to no sun), fired up generator this morning, the AC200PL was charging - then just stopped. I unplugged the unit from the generator just in case, checked adaptive charging was on, plugged it back in - still nothing. Firmware is updated, checked. Please help. I was so pleased to have the generator to help and now my power insecurity is back full force. Thanks, Tam
Hi Tam, Mike in Oz, would help with more details.
- What size, brand of genny?
- What was the “Big White Cloud” temperature when this happened?
My suggestion - You have 2 items where the issue could be, plus cables. The first thing is to check both, i.e. Is the generator, outputting 240VAC and under load? Try powering something else to check and as upwards of the load the 200PL uses.
Secondly, find somewhere, if possible with grid power and check the 200PL is charging from that. Also check that the overload circuit breaker has not tripped on the Bluetti and indeed the genny. Check the cable for continuity and or damage. Finally if it’s down to freezing in temp, it’s probably too cold to charge a LFP battery.
As an aside, not all generators are good to charge sensitive electronics, especially “el cheapo” ones. I have a Gentrax 800W cheapy, it is close to max when charging my 30A caravan charger at around 550W. However, I set my AC180 to Silent mode charging at around 280-290W and it charges fine.
So, try setting the AC200PL to Silent mode at 800W and see if that helps. 
(A slower charge is better than no charge and kinder to the battery in the long term)
2 Likes
Hi @TamJ, From the current information, we believe it is likely related to the ambient temperature.
When the temperature is very low, the system will stop charging to protect the battery. Could you tell us the specific ambient temperature? Is it feasible to place it in a warm room for 3 hours and then try charging again?
@Mandp’s troubleshooting approach is very professional. Thank you for your enthusiastic help!
Hello! Thank you for your replies.
Some variables: it didn’t ever get less than 4 degrees celsius around the battery (396.2 Fahrenheit).
I used a friend’s generator, which has an inverter (high quality Honda with an inverter) - same problem: an inconsistent power flow. Helpfully, the friend is a registered electrician specialising in solar installation. So he and I are speaking about a power conditioner. Does anyone have any suggestions on these??
I have managed to get it going, by cycling through the self-adaptive and other settings in the charging.
As a side note, it is disappointing that there are so many work-arounds that need to be done.