Greetings from Ukraine to the entire BLUETTI community
Apart from my questions (which is a bit lower here), I wanted to say a big THANK YOU for great products that truly helps to Ukrainians during such tough period in our country. Your portable stations and solar solutions showed a real value and importance especially after the missile attacks toward the energy infrastructure by the rashists last winter.
Now, if you don’t mind, few things to check regarding the AC200 Max. I have it connected with 3 solar panels in series (410W / 41.9 VoC each), so the income from solar gives even more than my family consumes during the day (usually it’s around 200 - 400 W: two computers, some lightning, router and efficient fridge of course). No need to say that the power station easily covers impulses initiated by water supply system pump and covers kitchen appliances. But in the regular mode 200 - 400 W is enough. So my questions are:
Does AC200 Max has any kind of “pass through” mode? Let’s say if the station is 100% charged and works with AC output ON + getting energy with PV input, does the house consumes the energy from panels or still it discharges the station’s battery?
What’s best possible charge / discharge usage scenario for LiFePO4 batteries in order to have them in a good shape?
Sorry if both questions were raised and covered before
Hello, the AC200MAX will stop drawing power from the solar panels once it hits 100% charge. It will then use battery power, until the charge drops to 99%. Once it drops to 99% it will start charging again from the solar, until it reaches 100%.
For optimal battery health, typically keeping a battery at a minimum 20% charge and a maximum of 80% charge is ideal. The lifepo4 batteries it has are very resilient though and should work well for 10 years with normal use.
@sunhouse Welcome to the BLUETTI forum!! Glad to know that the AC200Max is working well for you.
As @Emax said in his reply, you can refer to it completely. Thank you the answer
yes, confirmed, even though the busbar is the central point where both the DC output of MPPTs and battery are connected, the fact of shutting down the MPPT at 100% (and restart it at 99%) could have an impact on your device’s battery cycles (cycling the top 1% can quickly cause battery wear if use in a prolonged manner). There were previous discussions on the “pass-through” and “true pass-through”, suggesting only the EP500 had this “true” version of it.
@BLUETTI what about AC500? Does it have “true” pass-through btw? Or is it like AC300 and others, turing on/off MPPTs at 100%, then back on at 99% under continuous load?
I’ve obtained an inline ammeter to check the behavior when setting an upper charge limit at 85% as suggested by @emax, will post the test results here!
@Derceto
The AC500, like the AC300, will turn off the MPPT at 100% to stop charging and then turn it back on at 99%.
If the machine is carrying a loaded device, the MPPT will also work at 100% and the PV input will bypass the loaded device, but it will not charge the battery.
@BLUETTI thanks for the heads up.
I’ll re-test my AC300 as I observed a slightly different behavior using the ammeter. Will let you know with the test results once the sun is back :-)
Is it by design when the battery reaches 100% charge (via solar/AC, etc). that when you go into the PV screen, the input is at 0W? Im assuming that 0 is saying that 0W is going into the battery and going directly to AC load?
Would be a great feature to add to the display on the PV screen with a 100W AC load, Solar Production 900W
With battery != 100%
PV input to battery 800W
PV input to inverter 100W
With battery = 100%
PV input to battery 0W
PV input to inverter 100W
Hi Bluetti peeps
I have the AC200max and using 300w solar panels. I noticed that after AC200max was connected to solar panel it immediately started charging on PV mode. I showed pulling in 105w But I don’t see it changing the battery balance amount available. Should I be changing a setting?
Blockquote
Is it by design when the battery reaches 100% charge (via solar/AC, etc). that when you go into the PV screen, the input is at 0W? Im assuming that 0 is saying that 0W is going into the battery and going directly to AC load?
Would be a great feature to add to the display on the PV screen with a 100W AC load, Solar Production 900W
@BLUETTI
if battery is 100%, PV shows 0W is still feeding solar power to inverter AC output?
When the battery is fully charged to 100%, the PV will automatically stop charging. If the battery level drops, PV will continue to charge the machine.
@BLUETTI
Yes, but how do I know the solar is going to the inverter during passthrough when charging is 100%? Because PV shows 0W which to me is telling me, theres 0 Solar coming in at all, while my AC load is draining 100W my battery falls down to 99% and then PV comes back up to eg. 400W.
Is there a way to keep the PV showing the actual solar input even when battery is at 100% instead of droping it down town 0%? or add a separate field that says “PV Input W and PV Battery Charging W”
it is not going to the inverter.
If the battery is full its not using PV power. its using 100% grid power wasting all the PV power. ( heating up your solar cells)
