MH-CD42 DC 5V 2.1A Мобильная силовая плата Diy Board 4.2V Заряд/разряд(ускорение)/батарея защита/индикатор модуль 3.7V литий 18650 вкл.

Brand NameYour CeeModel NumberMH-CD42OriginMainland ChinaTypeElectronic Device Battery TesterCertificationNONEDIY SuppliesELECTRICALMeasurement unitpiece/piecesEach pack1Feature18650 testerFeature1battery charge indicator107,72 ₽-38%107,72 ₽-38%66,73 ₽66,73 ₽Add to CartBuy now66,73 ₽loaderReviews

4,8

6 reviews51000Top reviewsWith photosFrom Russia

All stars

All starsAdditionalAlexander S.20 June 2022·Show original

It went very long more than 3 months. I'll check, I'll add

Show moreAdded 27 July 2022·Show original

In general, it works. But there is one glitch, it can turn on and off without load.

Show moreNikolay K.24 August 2022

Show moreAnonymous user26 November 2020

Show more1Open 6 reviewsDescription

MH-CD42 DC 5V 2.1A Mobile Power Diy Board 4.2V Charge/Discharge(boost)/battery protection/indicator module 3.7V lithium 18650

 

Product Parameters Charging voltage: DC4.5V-5.5V (recommended DC5V) Charging current: 0-2.1A Charging quiescent current: 100uA Full voltage: 4.2V ± 1% Discharge current: 0-3.5A Discharge quiescent current: 50uA Discharge efficiency: up to 96% Output voltage: 5V Output current: 0-2.1A Ambient temperature: -20~+85°C The module comes with a lithium battery protection function (for lithium batteries without protection, with protection board) Overcurrent protection (OCP) Overvoltage protection (OVP) Short circuit protection (SCP) Over temperature protection (OTP) Charge and discharge power level 4 interval indication   Pin Description VIN: The correct input of the charging port + (DC4.5V-5.5V (recommended DC 5V) GND: negative input of the charging port - GND: Lithium battery - BAT: Lithium battery + GND: Output negative output - VOUT: Output positive output + KEY: Output enable trigger port (low pulse trigger)   Note In the discharge mode (the charging mode KEY function is invalid), the KEY port is triggered once, and the output is turned on; the KEY port is continuously triggered twice, and the output is turned off. When the load is first connected, the output will be automatically turned on. If the small fish 50MA is loaded, the output will be turned off after 30 seconds; if the load is greater than 50MA, the output will be continuously turned on.  Allow one side to discharge while charging (Note: this is the output voltage >4.7/<5V)   Wiring Instructions When the module is plugged in, the output will switch to external power supply (it will be powered off for 0.3s). When charging, the output voltage will be less than >4.7/<5V, depending on the charger load capacity! Trigger mode: low level trigger (ground) Connect to the single-chip microcomputer, if the connection is less than the load KEY, you can connect the single-chip microcomputer for about 20s to give a low level to keep the module working continuously.     Indicator Light Applications Car charging retrofit Driving recorder power supply Mobile power / charging treasure Portable devices such as mobile phones and tablets ​

 

 

 

---