Grengine

When you hear about solar power systems for personal use you probably think about something small, pocket portable and not good for anything more than charging phone or laptop.

How about a system that keeps the lights on of the entire house when electricity suddenly goes down check out grengine a powerful and eco friendly accumulator that has all the functionality of lead acid accumulator.

Except for being much lighter and much better in all senses, it comes with powerful battery that weighs only 12 pounds which is almost 4 time less than normal lead acid battery.

Its batteries are also stack-able to fit your power needs and you can easily replace them without the need to throw away entire unit.

You can also use it while charging and its recharging took 6 hrs from socket and 8 hrs through solar power in sunny day.