Връзка 1 (https://brickset.com/article/75082/rechargeable-battery-pack-for-control-hub-on-kickstarter?fbclid=IwAR0wIT7bdpyuYSkTCBJ4AI2uL9BdOmxJPlTfrJj9NoxuPMKl8PDIi5P2HNQ#.YoY4gC0mkMQ.facebook)
Връзка 2 (https://www.kickstarter.com/projects/phondly/enbo-pu)