Upgrade Cordless Grass Trimmer | Black and Decker TYPE JP01

I bought this from a Japanese used store for $10. It works normally, but it is very weak, I use it to cut only young grass. I feel it is almost useless, but its resources are usable. I decide to made it a little better by replacing the old motor with a newer one. The result is acceptable, it is stronger than before. Some information you may want to know Old Grass Trimmer Rotation speed 7400/min No load power is about 50W 550 DC motor 18V New Grass Trimmer Rotation speed 8500/min No load power is about 90W 755 DC motor 18V I hope you find this video useful and enjoy it! Furthermore, I am happy to receive feedback, suggestions to improve myself. !!! I'm sorry for the mistake if I did in this video !!! Thank you very much for choosing to watch my video! Have a nice day Gear Show