O.K the Battery is 3.7 Volts, what does this mean? And also the switch, what do you mean by clean the switch, do you mean the part that normally falls out when opening the case? Or the bit inside?
This sounds all good so far
Everything the Battery says on it (In english) is:
(MODEL NO) 042040A
(CAPACITY) 300mAh
(VOLTAGE) 3.7v
4.2v
I wonder what the 4.2v below means?
Hope this helps...