Funny you mentioned the Eton brand sir, i actually ordered one last year, pero nagkagulo ang pagpadala dito so wala pa rin sa akin :p i got the Microlink FR160, sadly you can't charge this unit via usb, hand crank, then solar(10 hours?!?) lang talaga. The FX3 *can* be usb charged though.
Gusto ko rin lang umiwas sa disposable batteries, environment-friendliness and all, so nagstandardize na ako with rechargeable AA/AAA's