Samsung has introduced Adaptive Fast Charging in its new Galaxy Note 4: 0-50% in 30 minutes is claimed. To make it work you need three things:
• the charger that came with the phone. Clearly labelled:
Credit: Android Central
On the other side is a clue to how this works: Output: 9.0V – 1.67A or 5.0V – 2.0A
• the cable that came with the phone. Not so clearly labelled.
• Fast charging option enabled:
Settings > System > Power saving > Fast charging
Some other manufacturers are making similar claims.
If your battery is low, & you only have a short time to charge, Zap&Go or Pronto will give you a better result. / removeable battery mAh LiIon lithium ion charge recharge fastcharge micro USB cable adapter /