A Viewer called Matt asked if I would take a look at a very expensive GYS100.20 battery charger. He had taken it to a repair shop but they couldn't fix it. Let's see if I can figure out what's wrong and hopefully repair it! I'm not an expert, but I do enjoy trying to fix things. If you enjoyed this video, or found it useful or helpful, please consider subscribing. It's free and you'll be notified when I upload more videos. Thank you for your support! Some of the tools and equipment that I use: The Famous Blue Mat: https://amzn.to/47bPNGK Infiray P2 Pro Thermal Camera: https://amzn.to/47c05Xm 170 piece electronics tool kit (security bits): https://amzn.to/3FGLWpr SMD Tweezer set: https://amzn.to/3t9GlW4 Aixun T3A Soldering Station: https://amzn.to/3u2SBri Soldering Flux: https://amzn.to/3UDC0py Low Melt Solder: https://amzn.to/3QICZ5r : Cheaper Alternative https://amzn.to/3G4L3XK Grinding pen: https://amzn.to/3QCHE7v Component Tester: https://amzn.to/46UcHm6 alternative (slightly cheaper) https://amzn.to/49yZSzJ Overhead Camera Mount I Use: https://amzn.to/3tX8Ar4 Microscope Light (I use on my Trinocular): https://amzn.to/3FEAPgy AD409 Pro Microscope 10" Screen: https://amzn.to/3G0CI7P Extra Long Torx Drivers(used on Milwaukee radio): https://amzn.to/40siUU3 DC Power Adapter plugs 38 PCS: https://amzn.to/49lCUMm USB Power Meter Tester: https://amzn.to/47VOEn9 SMD Component ruler 3x (for sizes of components): https://amzn.to/3TvfcWO Other Equipment: Main Overhead camera: Sony HDR-CX450 with 3rd party remote and RODE VideoMic Pro Other cameras: Canon G7X, iPhone 6 Microscopes: Amscope trinocular (clone) with FHD 48MP Camera V8 & Adonstar AD409 Pro. Editing Software: DaVinci Resolve The above links are amazon affiliate links, and I may receive a small amount from Amazon at no extra cost to you, if you choose to purchase an item. #electronics #electronicsrepair #repair Faulty GYS100.12 Faulty GYS 100.12 Faulty GYS Battery Charger GYS Battery Charger Repair GYS Battery Charger Blank Display Repairing a GYS Battery Charger GYS battery charger fix Fixing a GYS battery charger