Given that our smartphone’s batteries don’t last particularly long, especially for heavy users, the idea of bringing around a battery pack or using a battery case is becoming increasingly common. However if you’d rather not deal with the bulk of a power bank or a battery case, then perhaps the Slimger could be the solution.
Slimger is basically an external battery for mobile devices that is slim enough to fit into your wallet like you would a credit card. Of course it is slightly thicker than a credit card, but if you don’t mind a little bulk in your wallet or purse, then it shouldn’t be an issue. In terms of battery size due to its thinness, it only packs a 1,400mAh battery under the hood.
We suppose it’s not necessarily a bad thing if you value portability over battery size, but it should be enough to give your phone a quick recharge if you find yourself in a situation where you absolutely need some battery to make a quick phone call or to fire off a few messages. Its creators are boasting that it should be enough to give users 5 hours of talk time, 4 hours of internet, or 95 hours on standby.
Slimger will be compatible Lightning-based iOS devices, devices powered by micro USB, and USB powered devices like rechargeable headphones or Bluetooth speakers. Slimger is priced at $31 each and can be bought via its Indiegogo page (where it has since been successfully funded).