Unanswerable Charging Questions?

Amazing that no tech from Razer can answer what should be a simple how to charge a Mamba wireless mouse question. Is it because the Mamba is made in China and Razer has no techs who speak Chinese? So they can't ask the Chinese engineers who built the mouse did they design the Mamba to be charged in a standard wall charger or only through a computer or laptop usb port?
When the Mamba reaches 100% charged does it simply stop charging like a phone or any other device that charges using a wall charger.
Do you ruin the Mamba if you don't pull it out of the charger as soon as it reaches 100%?
Simple questions you see but no response from Razer in 2 separate emails, 3 separate post in two separate forums!
Guess I'll have to try and contact those Chinese engineers myself.