Rather than store lots of phones in our caravan, we rent out power packs to enable people to charge their own devices as they enjoy events. The power packs have a capacity of about 5500 mAh, sufficient for at least one full charge of a smartphone. An iPhone 5 has a battery of capacity 1500mAh; a Samsung Galaxy is about 2200mAh. The …

We want to make solar power available for everyone and so although most of our charging is done by rented power packs we also have a charging point available 24/7 with a donation box. It takes a