The Bluetti AC500 & B300S System will soon be available via an Indiegogo crowdfunding campaign. The modular power station can be attached to up to six battery packs for a maximum capacity of 18,432 Wh. This would allow you to power a 10 W device for up to 1,567 hours. You can recharge the gadget via an AC wall outlet or solar panels.https://www.notebookcheck.net/Bluetti-AC500-B300S-System-announced-with-up-to-1-567-hours-of-power.638094.0.html
How does 18,432 Wh translate to "10 W device for up to 1,567 hours"?
It means the system is about 85pct efficient. It takes power to run the inverter the battery bms, the leds.
Your getting 85pct of what the battery rating is.
Rick
I call BS