Even the most fanciest power banks you buy can hold charge for a certain number of cycles. They don’t have replaceable batteries, so you will have to part ways with them after they lose their ability to hold charge. The ZERO power bank takes a different approach. This is a repairable power bank with replaceable cells. It can be expanded from 77Wh to 387Wh.
This has swappable cells. It has a 100 W USB-C port, so you can use this to charge a laptop. This power bank allows for linking up to 5 units. You get enough capacity to charge an iPhone 4 times and a tablet up to 2 times. This project is getting funded on Kickstarter.
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