The LithiumCard isn’t the only credit card-sized battery for mobile devices seeking crowd-funding, as there’s also a TravelCard project that offers iPhone and Android smartphones exactly the same perk: a credit card-like device that packs enough energy to bring life to a dying smartphone. According to the Go Design company the TravelCard’s 1300mAh battery can offer an additional 5 hours of talk time, 4.5 hours of internet usage or 98 hours of standby time on top of what the phone’s battery has to offer. The device is just 4.77mm thick and weighs 56.7g, fitting into most wallets or pockets, and comes with either a Lightning or microUSB charging cord. The TravelCard will be made in lightweight aircraft grade aluminum and
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