Review on 💡 POTEK 750W Power Inverter: 12V DC to 110V AC Car Adapter with USB and AC Ports for Electronics Charging by Jason Guzman

March 21st 2021: I bought this machine in August 2017 so finally decided to do a long term review on it. I bought it to connect to a very large deep cycle battery to power a small TV and other medium powered devices while hiking. So, after almost four years of use, here's my assessment. It still works. Just be careful not to short the wires when connecting to the battery. In other words, do not connect the red wire to the black (negative) side of the battery or you will immediately blow the internal fuse. You do NOT want to do this as it is extremely difficult to separate the case of this inverter and replace the fuse inside. By "extremely difficult" I mean it took me a few hours, breaking the plastic body of the device here and there. So be careful not to cross any cables or you may have to open this case up for a professional with professional tools. In the end I managed to replace the fuse and assemble the case, but it wasn't easy. It's not the manufacturer's fault, it's my fault. And I've learned my lesson. I haven't shorted it out since, and every time I take it on a hike or tour, it always works great. Car or deep cycle battery, it shows you the number of volts in the battery. If you load it via plug-ins in front of the device. You can also tell if a battery is good by seeing if the voltage holds when it outputs a load, e.g. a plug-in. Flashlight. If the voltage drops fairly quickly, the battery is either bad or needs to be charged. If you charge the battery and the voltage still drops rapidly after charging, the battery is either sulphated or simply unusable.