Can the Weza power appliances such as polishers or angle grinders (power tools)?
It is not compatible with power tools (220v) as it only powers 12v appliances. They require more power than the human can comfortably generate with the Weza.The display bar is no longer working. The Weza is not totally discharged. I hooked it up to the charger for 8 hours just to make sure. It has some power in it because I have plugged in some 12 volt items. It could simply be that the micro processor needs to be reset. To do this you need to disconnect the battery by loosening the cap screws on the side panel (underneath the rubber grommet). You will need the supplied allan key. Once loosened, the switch should be slid to break contact for a few seconds, then re-connected and fastened firmly again.