We used the AC180 to power a 330w light to drop charge% from 100 to 15. It only lasted about 1 hour. At the start it said it would take 1.9 hours to go from 100 to 0. There 1hour seems poor. Comments please
Hi! Here are some steps to address the issue you encountered:
- Perform a charge-discharge cycle by fully discharging the battery and then charging it back to full, without any load during the charging process.
- If you don’t need to use the load, it’s best to turn off the AC & DC.
- If the State of Charge (SOC) drops to 0%, please check the BMS firmware through the app to ensure it’s the latest version, and then perform another charge-discharge cycle.
If you have further questions, feel free to ask!
Depending on the light, its power factor may be as high as 0.5. The AC180 displays real power not apparent power (VA) I believe, so if the power factor is 0.5, this means its really drawing 660W from the battery to keep the device running. Yes, its real power is 330W but its consuming 660W from the battery to run the internals. You get 90% depth of discharge or 1036Wh. 1036/660= 1.5 hours. In other words your lights draw 330W to run, but the appliance needs additional power to keep itself running, so the actual battery consumption is 660W not 330W.