3 cell phone batteries can be connected in series?
5V parallel with three batteries really dangerous, lithium limit voltage is generally 4.2V, you can use the universal charge of three batteries in parallel charge, full of automatic stop. Although 700MA is not large, but the human body is still dangerous to charge.
In addition, if the mobile phone battery protection current is small, when playing drift may be power, because the current over the General Assembly to protect, but will be their own good.
Mobile phone batteries have a protective board, the voltage is absolutely super, but will not burn, play enough, the motor loss fast.
