As a frequent driver, I can safely say that the Nature Power 38330 Inverter has helped me in more ways than one. The unit is able to charge all of my automotive devices with ease, making me feel more secure while on long drives. As a result of using this product, I found that i had a lot less anxiety about being stranded with dead batteries and no way to power up. The only downside to the Inverter is that it's a bit pricey but in this case, the benefits far outweigh the cost..