I've checked all modes. Turned on a motorcycle. Works with my notebook without battery. Device for all occasions.
I've checked it in all modes. Started a motorcycle, that wasn't in use for a few months . Useful for my laptop. The device for all occasions.
Didn't try on my car yet, but I use it for my laptop. Works up to 2 hours.
The goods are checked. Started a car with a half turn. Charging the device itself takes a long due to the battery capacity.