In this video, we show you how to make a USB power bank charger that actually charges your device. We tried to do the procedure using a Bluetooth box board, because in a way it is quite easy to show that your phone is charging, but charging it satisfactorily is another story. On the FAZENDO ARTE 10 Channel, we have already posted several videos about power banks, both with the inclusion of more 18650 cells on a board that probably does not support a larger number of cells, and repairing micro USBs, something that often breaks, because we connect and disconnect them several times over time, which wears out the part a lot. Since the intention of this video was to make a Bluetooth speaker, trying to reuse its USB to create a homemade power bank, this is because the battery connection board has to input up to 4.20 volts, depending on what is specified in the datasheet of the 18650 battery or lithium cell battery, for example, leaving 5 volts on the USB port, but that was not what was happening with the Bluetooth board we used, not even that WS877 speaker board can send 5 volts to power a pendrive, being the possible cause of many related complaints that I see out there, since the pendrive needs 5 volts to work and the board does not have the capacity to meet this need. So that's it, folks, here are the tips from this video demonstrating how a portable cell phone charger power bank should work, in case you are thinking of making your own. Remember that things that mess with the battery require extra care when building. (CARD MENTIONED AT 14:50) 👍✅How to recharge a notebook battery cell with an old cell phone - Homemade charger 4.2 volts 👍✅ • How to recharge a notebook battery cell with an old cell phone - Homemade charger 4.2 volts 👍✅ • How to recharge a notebook battery cell with an old cell phone - Homemade charger 4.2 volts 👍✅ BE CAREFUL with fake BATTERY - FIX devices WHEN THE BATTERY DOES NOT RECHARGE - POWER BANK AND OTHERS👍✅ • BE CAREFUL with fake BATTERY - FIX... 👍✅BLUETOOTH BOX DOES NOT PLAY PENDRIVE GOOD, tips on WS-887 box without sound power, failure👍✅ • BLUETOOTH BOX DOES NOT PLAY PENDRIVE ... 👍✅How to make a bluetooth box with a powerbank portable charger - How to connect a potentiometer to the board👍✅ • How to make a bluetooth box with a p... 👍✅How to make a portable charger in the modem housing with more notebook battery cells👍✅ • How to make a portable charger in the h... 👍✅IS THE TURBO MICRO RECTIFIER STILL WORKING ON A 30 VOLT POWER SUPPLY? HOW MANY TURNS THREAD SEAL TIP👍✅ • MICRO TURBINATED RECTIFICATION IS STILL F... 👍✅BLUETOOTH BOX DOES NOT PLAY PENDRIVE GOOD, tips on WS-887 box without sound power, failure👍✅ • BLUETOOTH BOX DOES NOT PLAY PENDRIVE ... 👍✅How to recharge notebook battery cell with old cell phone - Homemade charger 4.2 volts👍✅ • How to recharge battery cell of... 👍✅Test mini reused SOLAR PANEL and bad USB CABLE - Testing if a SHORTER cable is better👍✅ • Test mini reused SOLAR PANEL... Electric Soldering Iron, 908s 80W ALIEXPRESS STORE ** https://tidd.ly/4f3HSiP USB CABLE V8 MICRO USB OR TYPE C ALIEXPRESS STORE *** https://tidd.ly/4g7AeVW ATTENTION! ALL PROCEDURES SHOWN HERE ON THE MAKING ART CHANNEL MUST BE DONE WITH EXTREME CAUTION, ESPECIALLY PROJECTS INVOLVING BATTERIES, ALWAYS USE ORIGINAL BATTERIES, INSULATE ALL WIRES VERY WELL, EQUALIZE THE CHARGE OF THE CELLS TO MAKE PARALLEL CONNECTIONS, THE BATTERIES MUST HAVE THE SAME CHARACTERISTICS TO REDUCE THE RISK OF EXPLOSION, AND MAINLY ONLY DO THE PROCEDURES SHOWN ON THE MAKING ART CHANNEL IF YOU HAVE SOME KNOWLEDGE, BECAUSE DOING IT INCORRECTLY CAN EITHER DAMAGE YOUR DEVICE OR END UP CAUSING AN ACCIDENT. ALWAYS USE SAFETY EQUIPMENT. Skinny Leonard by Audionautix is ​​licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...) Artist: http://audionautix.com/