12Pcs 5V Boost Step Up Transformers Power Supply Module for DIY Charger, with LED Display, USB and Micro Port

12Pcs 5V Boost Step Up Step-up Transformers Power Supply Module Lithium Battery Charge Protection Board for DIY Charger,with LED Display,USB and Micro Port

12Pcs 5V Boost Step Up Transformers Power Supply Module for DIY Charger, with LED Display, USB and Micro Port

The use of welding Note B + positive and B-negative can not be reversed 18650 battery Charging board size : 22*17*11mm Input : 5V 1A (charging red light) Output : 5V 1.2A (please do not take longer than 1200mA current device) Lithium voltage : 3V- 4.3V Charging Interface : Micro USB Available for various batteries like Polymer ,18650 Lithium ,Cell Phone ,Tablet and MP3 Battery The step up charging board can be connected to a lithium battery and connected in multiple sections of lithium batteries, as long as the voltage is 3.7-5.5V in parallel(only be connected in parallel, not in series) Charging instruction : Two versions are shipped randomly.Old Version charge status indication. Red light flashes when charging; Long red light when full;New Version has no lights. it has protection functions, protect from over-charger / over-discharger/ over-load ( support charger and discharger at the same time ) The image is for illustration Package Included: 12 X 5V Lithium Battery Charge Protection Board

Key Features

• ✅ Built-in charge and discharge power MOS;The existing power management chip on the market all are HOTCHIP HT4928S which the parameters is same as134N3P
• ✅ Two versions are shipped randomly.Old Version charge status indication. Red light flashes when charging; Long red light when full;New Version has no lights.
• ✅ The step up charging board can be connected to a lithium battery and connected in multiple sections of lithium batteries, as long as the voltage is 3.7-5.5V in parallel(only be connected in parallel, not in series)
• ✅ Available for various batteries like Polymer ,18650 Lithium ,Cell Phone ,Tablet and MP3 Battery
• ✅ it has protection functions, protect from over-charger / over-discharger/ over-load ( support charger and discharger at the same time )

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