A backup battery to build on

We use affiliate links. If you buy something through the links on this page, we may earn a commission at no cost to you. Learn more.


The COI+ LEGO Power Brick has a 4200mAh lithium-polymer battery inside with plenty of reserve power to get your devices through the day.  It has patented PCB and smart IC, so it charges your device at “a speed that best protects your electronic device”, up to 2.0A.  It’s small enough to fit in your gear bag, and it’s available in red, yellow, blue, or white.  Best of all, it serves as a baseplate for LEGO blocks, and it even comes with a few blocks that can be used to build a stand for your mobile device right on the COI+ battery.  Brando is taking pre-orders now for $56.00; shipment is in mid March, 2014.

About The Author

1 thought on “A backup battery to build on”

  1. Gadgeteer Comment Policy - Please read before commenting

Leave a Comment

Your email address will not be published. Required fields are marked *