The core of this eco-friendly portable charger would actually be made of something that you probably already posses. The concept behind this electronic device is to reduce the unnecessary manufacturing of gadget chargers and compact energy storage gizmos, suggesting a clever way to reuse smartphone batteries.
Kiyong Shin and Sung Jungyeon have developed a shell for a portable battery pack that comprises a protective case and hookups for USB charging cables. If you've got an old mobile phone lying around, simply insert its battery into the BetterRe and you'll have a rechargeable device for juicing up your gadgets on the go.
Cell batteries do gradually deplete, but they often outlive their handset hosts. This eco-friendly portable charger cleverly and conservatively uses the tools that users already have available.