I have an AC200L. If I add an expansion battery how does it manage the discharge rates for each unit. Does it draw both down evenly or the expansion battery first and then the AC200L. Can the sequence be managed by the user. I can see how I might want to run either one depending on where I am.
My opinion and I stand corrected if wrong. I believe expansion batteries are pass through.
The B210 outputs 51.2V @ 60A = 3,072W. The B300K is 58.8V at 90A max = 5,092W. They differ in output.
That said, the AC200L output is 2,400W continuous. Therefore if either of the above batteries are connected to a fully charged AC200L, pass through power means that the expansion battery is providing the power until it depletes, then the AC200L battery continues to provide power until it to depletes and up to Max AC200L load .
(The B230 battery is not available on the AU website and may be discontinued here.)
However, if your AC200L is not fully charged, the expansion battery will provide power to your load device/s and any excess available will charge the AC200L at the same time until it reaches 100% if capacity permits.
@BLUETTI can confirm, or not my thoughts, lol.
Hi @Slotown
I have a AC200L with a B210. Its clearly priotize the draw from AC200L but both gets drawn at the same time, not evenly.
You cant set this for yourself, the unit manage it itself. Even when the AC200L is at 0%, you still can draw power from the expansion battery.
greetings
Erik
@Slotown
In theory, the system should balance evenly, but in practice, it doesn’t always match the ideal scenario (even with identical battery voltages, charging/discharging currents may vary, leading to differences in capacity/SOC between batteries).
Unfortunately, users cannot manually manage this prioritization order.
If that is the case for discharging, what is the protocol for when the AC200L and the expansion battery are charging. Let’s assume both are at a 30% charge level.
In theory, they discharge together: if one battery has a higher voltage, it will discharge first until the voltages equalize, then both batteries will discharge simultaneously.