If it does the job, great…but maybe they are being a bit generous with the power output of 550 watts for a battery powered machine. That is equivalent to 30 amps at 18 volts. Expect the Chinese thought that would impress us no end!
I can believe it... that would only be a 3000mAh battery running at 10C (ie 10x3 amps).
Here is a
battery claiming to do 250-500 amps! (likely only for a few seconds mind you!)
