3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge Integrated Module:

This is a mini 5v up which have TP4056 Lithium Ion Battery Charger with Boost Converter With DC To DC Step Up Boost Converter Module which allow you to get 5v 9v or 12v.

Product description:

1. Micro USB input terminal with a female, can  directly input to do with the phone charger rechargeable lithium battery, And still retains the input voltage wiring pads, can  very convenient DIY
2. It can  use for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection
3. It S

Features:

1. 100% Brand New and High Quality
2. Can  use for multimeter, converted to lithium battery charging
3. For example, VIN+Port input 5V solar panels, BAT+port can output 4.2V to charger 3.7V 18650 battery
4. Note: The OUT+Port can output an adjustable voltage.

Specifications:

1. Input voltage: 4.5-8V DC
2. Output voltage: 4.3-27V DC (Continuously adjustable)
3. Charging voltage: 4.2V DC
4. Charging current: Max. 1A
5. Discharging current: Max. 2A
6. Size: 3.3×2.3cm/1.3×0.91″

Package Include:

1 X TP4056 Lithium Ion Battery Charger with Boost Converter

Tutorial:

https://stem.pk/how-to-make-12-volt-with-3-7-volt-single-cell-battery/

This is a mini 5v up which have With DC To DC Step Up Boost Converter Module which allow you to get 5v 9v or 12v. Input voltage: 4.5-8V DC. Output voltage: 4.3-27V DC (Continuously adjustable). Charging voltage: 4.2V DC. Charging current: Max. 1A. Discharging current: Max. 2A. Size: 3.3×2.3cm/1.3×0.91″

1. 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
2. It can be used for voltage 3.6 3.7V, etc. 18650, polymer and other lithium battery charge and discharge protection
3. It S 1. 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
2. It can be used for voltage 3.6 3.7V, etc. 100% Brand New and High Quality  2. Can  use for multimeter, converted to li