My AC300+B300 unit has been in service for about 5 months now. It’s used daily to power my office and I wanted to make a capacity test as I started to use heating (November…)
- Load: 1600 Watt electric radiator.
- Wattmeter reads 1600 watts.
- AC300 screen mentions ~1725 watts.
I suppose the difference between 1600 and 1725 watts is the inverter’s efficiency (about 94-95% in this case). This seems OK to me.
Applying this continuous load of 1600 watts drained the battery in about an hour and a half.
The wattmeter reads that a total of about 2400 Wh were consumed by the radiator.
Considering the 95% efficiency of the inverter (as calculated above), this means only 2,526 Wh were drawn out of the 3072 Wh of theoretical battery capacity.
This means that a “full battery” actually refers to 82% of the B300’s marketed capacity.
This seems a bit low to me especially since I factored in the inverter’s efficiency.
Not taking the inverter’s efficiency would mean I only get 78% of the advertised capacity of usable AC power with a decent load.
Am I being too picky here, or am I reasonable to consider these values to be too low?
Also, @BLUETTI does this seem right according to your lab tests?