Below are two great smartphone and tablet chargers. One trim and inexpensive and one solar. Both can be purchased from the Store on AskAbbyStokes.com.
PNY T2200 Universal Rechargeable Battery Charger – under $10
The PNY battery charger is so trim and light, along with an irresistible price, that I bought a few. I distributed them between my handbag, travel gear, and glove box so I always have a way to charge my smartphone or tablet within reach.