bruno henrique dos s silva

pode se montar um powerbank utilizando as placas que vende no aliexpress nos links abaixo https://pt.aliexpress.com/item/Dual-USB-5V-2-1A-1A-Mobile-Power-Bank-Charger-PCB-Board-Boost-Step-up-Power/32760797930.html?spm=2114.02010208.3.26.ryvhxe&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10065_10151_10068_10136_10157_10137_10060_10138_10155_10062_10156_437_10154_10056_10055_10054_10059_303_100032_100033_100031_10099_10103_10102_10096_5180011_10147_10052_10053_10050_10107_10142_10051_10173_10084_10083_10080_10082_10081_10110_519_10111_10112_10113_10114_10181_10037_10183_10182_10185_10032_10078_10079_10077_10073_10123_142,searchweb201603_9,ppcSwitch_2&btsid=2f59c9d5-3468-4c7b-8677-20054a87602d&algo_expid=4dee02c6-22d4-4a33-a858-726913d8c967-3&algo_pvid=4dee02c6-22d4-4a33-a858-726913d8c967 https://pt.aliexpress.com/wholesale?minPrice=&maxPrice=&isBigSale=n&isFreeShip=y&isNew=n&isFavorite=n&isMobileExclusive=n&isLocalReturn=n&shipFromCountry=&shipCompanies=&SearchText=modulo+usb+bank&CatId=0&g=y&SortType=price_asc&initiative_id=SB_20170517155244&needQuery=n&groupsort=1 descrição: modelo: K6-PCBA entrada: 5V1. 2A saída: 5V1A, 5V2. 1A faixa de tensão de bateria: 3.7 V +/-0.5 V faixa de exibição de capacidade: 1%-100% tamanho: 65*22*15mm não deve exceder 450,000 mA na linha Valor: R$ 12,00 (17/05/17)