Build a Solar USB Charger, Portable & Powerful

This is a high-speed portable USB charger was specifically designed to charge my phone and tablet at the same time.

This charger can be charged at the mains or by solar panels that I have modified.

Cannot live without technology these days!

List of Materials

1 x Small disused makeup box (free from the Mrs, priceless!)

1 x Multimeter (£3 eBay)

1 x Push switch (£2.50 Maplin)

1 x Dual USB Car charger (£5 eBay)

2 x 4.5AH SLA Battery (£6 each eBay)

1 x Scrap metal face plate (was lying around in the shed)

Grand total £22.50