3.7V Liter 9V 5V Multimeter Modified 18650 Lithium Battery Charge Boost Discharge Integrated Adjustable Module 2A

Condition : NewType : Voltage RegulatorBrand Name : Ah robot : Mainland China
>For the version without protection, the "t" point on the back must be short circuited. Otherwise the battery is invalid.>Attention! be careful! Customers without multimeter should not buy this product. Don't blame the product electricityThe positioner has no scale. Don't pick on me if something goes wrong. Our products are delivered after testing.◆ up to 1 a programmable linear charging current◆ for a single 3.7V lithium battery, fully charged with 4.2V◆ constant current / constant voltage charging, with over temperature protection◆ soft start to limit surge current, with battery reverse connection protection◆ low power standby, extended battery life◆ charging status dual output, no battery and fault status display◆ 0V activation and 2.9v trickle charging◆ working temperature: - 40 ~ 80 ° C◆ input voltage range: 4.2V ~ 6.5V◆ output voltage: 4.2v-28v (adjustable)◆ maximum power: 5WDescription of charging indicatorThe module can roughly judge the working state through the two LEDs and other states. CHRGIt is red and stdby is blue. The red light of battery charging status is highlighted, and the blue lightIt doesn't light up, but the red light is slightly bright. If there is a boost outputAccording to the different output power, it is possible that the red light will be highlighted when charging, but it is not connectedWhen there is no load, the blue light is on and the red light is slightly on.lnput：5VOutput：4.2-28V adjustable