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other videos that may help: • how to make a Power bank with a charger... • external hard drive making noise and not reco... • turning off the refrigerator at night to save... • how to know how much energy is used by... • Video • how to make a dustpan with a can... My complete playlists: / oliveiratecnostal Hey guys, today I'm going to make a portable charger with some old batteries that I had here. I removed these batteries from radios, minigames, old cell phones and others, so the batteries may have little charge storage capacity. Even so, it can be useful to light a flashlight or a small cell phone recharge, because although putting the 3 batteries together gives around 3 amps of charge, it should probably actually have 1.5 amps due to the time of use of the batteries. The Powerbank works as a reserve to recharge other devices, being compact and with a USB cable. The portable charger can be used both as a wall charger and as a portable car charger. It can also be recharged by a mini solar power system. Reminding everyone that the channel's main objective is to bring recycling ideas, technology and various tips by doing small projects to reuse used materials, but it is up to each one to analyze and study the subject. Despite having portable charger boards, I checked on Mercado Livre and saw that there are plenty of offers for Powerbanks complete with batteries at very affordable prices. Even though they are inferior brand products, they are still very worthwhile and are new with a battery. So maybe it is not interesting to make the charger in the video, but it is just a curiosity and test video. #tips #recycling #gambiarra #reuse Be a member of this channel and get benefits: / @diyoliveira