HW 357 3.7V 9V 5V Adjustable DC DC Step Up 18650 Li-ion Battery Power Bank Charger Module

Features:
● Micro USB input terminal with a female, can be directly input to do with the phone charger rechargeable lithium battery, And still retains the input voltage wiring pads, can be very convenient DIY
● It can be used for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection
● It Support charge discharge over current protection
● It Supports simultaneous charging and discharging
● Charge cutoff voltage: DC 4.2V±1%
● Charging mode: linear charge
● Working environment temperature: -20-85 degrees Celsius
● For example: VIN+Port input 5V solar panels, BAT+port can output 4.2V to charge 3.7V 18650 battery Note: The OUT+Port can output an adjustable voltage

Specifications:
● Input voltage: 4.5-8V
● Output voltage: continuous adjustable 4.3-27V (Counter clockwise to boost voltage)
● Charging voltage: 4.2V
● Charging current: up to 1A
● Discharge current: the maximum 2A
● Output reference maximum current: 5V 1.4A, 9V 0.8A, 12V 0.6A
● Quiescent current: about 0.5 mA
● Overshoot protection: Yes
● Over discharge protection: None (also can be said yes, because 2V cut-off boost but does not block the output, output has 2V)
● Deadline boost:: 2V, depending on whether added the additional protection board
● Size: 3.3 x 2.3 x 0.9cm

Connections:
● VIN+ connect 5V solar panel
● BAT+ terminal can output 4.2V to charging 3.7V 18650 battery
● OUT+ side can output an adjustable voltage

Package Included:
1 x HW 357 3.7V 9V 5V Adjustable DC DC Step Up 18650 Li-ion Battery Power Bank Charger Module