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