EV-Peak E4 50W Portable Battery Charger and Balancer

This charger can charge a 4S 14.8V 1550mAh battery in about 30 minutes @ 3A
The charger automatically detects and adjusts the maximum charge rate.

AC Input voltage: 100-240V
Charge Power: Max.50W
Charge Current: 4A
Balance Current: 400mA
LiPo Battery Cell Count: 2-4
Weight: 278g
Dimensions: 98*98*36mm