It is too big to put in a backpack but this seems like a perfect solution for those who suffer from a lot of power outages at their homes and need to keep their phones powered up for weeks.
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Shared with: Public, Dor Kleiman+1’d by: Andrew Bernstein, Chris Radtke, Adam Outler, Chris VukinDor Kleiman – 2015-12-06 21:24:48-0500Why not just get a UPS and get it over with? Chris Vukin – 2015-12-06 21:35:27-0500im in 🙂Keith I Myers – 2015-12-06 22:00:28-0500 – Updated: 2015-12-06 22:02:29-0500+Dor Kleiman – Using a UPS to charge a mobile phone is not the most efficient way to do it as the battery essentially has to run a 12c DC to 120v AC invertor only to scale it back to 5v DC by the mobile phone charger.
This would drain the UPS after a few uses. This stores in the energy at 5v and could last weeks if you are powering your phone and a tablet. Adam Outler – 2015-12-06 23:43:02-0500 – Updated: 2015-12-06 23:43:35-0500The rule is, you lose 10% per conversion. Chemical to electrical, 120 to 5, 5 to chemical. This removes an extra step from the process. This is a perfect system rule though. Wall outlets aren’t.