Features
1.Support 5V and 12V dual voltage output, to meet the power needs of a variety of electronic devices.
2. No welding DIY design, easy to install, suitable for electronic enthusiasts to quickly assemble.
3.Can be assembled with 3 sections of 18650 batteries, providing high capacity and stable endurance.
4. Equipped with a power switch, easy to control the power supply state, enhance the safety of use.
5.Standard DC5.5*2.1mm interface, widely compatible with all kinds of adapters and equipment systems.

Parameter
Capacity: loadable battery capacity: 3*3.7V*3400mah=37 watt-hours (batteries user-provided)
Output power: DC port output 12V3A (not regulated); USB port regulated output 5V2-3A
Whether regulated: DC port is not regulated, 3 batteries connected in series for direct output, full of 12.6V low-voltage protection of 8V, the voltage increases or decreases with the amount of power
Application Type: For small power appliances that do not require voltage regulation, electric motors, LED lights, stereos, solenoid valves, radios, etc.
Battery type: 3.7V cylindrical 18650 batteries
Charger type: 12-13V charging, with internal charging current circuit, more than 13V may be damaged, less than 12.7V may be charging the full
Charging power: internal charging current limiting circuit with 12.6V0.4A=5W Charging power: internal charging current limiting circuit 12.6V0.4A=5W, can be charged by ordinary 12V power supply
Protection circuit parameters: overcharge protection 4.25V*3; low voltage protection 2.75V*3; overcurrent detection voltage 0.1V+-0.025V Temperature range of use: -20~60℃
DC interface standard: DC5.5*2.1mm (inside positive and outside negative)

Package include
Battery box*1