Dasbsug Dual USB 3.7V 5V 2A Boost Mobile Power Bank DIY Power Bank Charger Board Module

Features: brand new and high quality The voltage of the positive and negative electrodes is required to be 3.7V lithium battery and the rate is not lower than 3C otherwise the power supply will not be stable. Use old batteries or over-age batteries laptops electric vehicles electric drills and other disassembled batteries which may have been seriously aged or even damaged. Please use a multimeter to test whether the voltage is normal before connecting in parallel. Do not install reverse batteries do not incorporate damaged batteries do not connect batteries in series and are strictly prohibited from connecting to various batteries that do not meet the requirements. The minimum recognition current is 100 mA which cannot support Bluetooth-compatible devices MP3 and other low-current devices. Please use a 5V charger to charge the motherboard. PD chargers are not supported. Package Includes: 1x Power Bank Board Specifications: Material:ABS Single USB output: 5V/0.1-2.1A (MAX); Dual USB output: 5V/0.1-2.4A (MAX); IN input: 5V/2.1A; Type-C port input: 5V/2.1A Size:Approx.7.5x2x1cm/2.95x0.78x0.39 inches note: 1.Please allow 1-2cm errors due to manual measurement make sure that you do not mind before you order. 2.Due to the difference between different monitors the picture may not reflect the actual color of the item.