Best external battery for iPhone 3Gs

[salarmanutd]

hey buddies how u doin guyz? i got a Q here.if there's anyone who can A me it'll be so gooooooooooood.
i got a solar iPhone charger(NOVO THINK) but unfortunately it charges 70% of it.is there any battery dat makes my iPhone fully charged for thrice or more?wat's ur ideas bout deez batteries?

Kensington Travel Battery Pack
Richard Solo 1800 Backup Battery
RichardSolo 9000 mAh Mobile Charger
juice pack™ powerstation

which one is better?

 

[LostLogik]

Get a HyperMac. Best thing I did for my 3GS, with the added bonus of it charging my MacBook as well.