4000mAh Portable Power Bank Shell Hand Po / Shell Hand Warmer LED Torch
Battery Capacity: 3.7V/4000mAhli-ion
Working Voltage: DC2.9V-DC4.2V
Working Current: 2.8A
Charging Current: 1000mA
Output/Charging Voltage: DC5V -5%
Color: Blue, Green, Pink, White
Product size: 11*5*7.5cm
Woking Time: high temperature (60 degrees) 3h,at low temperature (50) 4H
State of LED indicators(4pcs): below 25%, 25%-50%, 50%-75%, 75-90%, over 90%
When you don't use this digital hand warmer for long time, please guarantee each 30 days full electric oncein order to guarantee battery of using life.
When this hand warmer finishes charging or short-circuit situation, internal MCU will automatically protection, at products is no any reaction of, should timely charging again to activate internal MCU.
Due to child's tender skin, it is strictly prohibited for 3 age or younger to use this product.
1 x BestFire 4000mAh Digital Hand Warmer Power Bank
1 x USB Cable
1 x User Manual
1 x Storage Bag
Any problem please feel free to contact us through Email System and we will do our best to serve you.