A cellphone that can hold a charge for 15 years

The market is flooded with Smartphones and their accessories that make sure these smart gadgets always remain in a functional state. But, it is nothing less than a headache to hunt for a charging slot every now and then especially when you are on the move. To save you from all such troubles a cellphone has been designed that won’t need any charging for a good 15 years. It runs on one single AA battery and can still last for that long. Sounds like something that pretty damn good for the environment compared to a quad core smartphone that needs charging every few hours..

However it has only 2 features, sms and calling.