Self-contained GoPro portable power kit.
Okay, i admit it: i'm a tiny paranoid about having dead batteries in the field. I hung out as long as i could, always preferring cameras and other gadgets that would accept aa batteries. I have, in fact, a nice collection of flip video cams, canon powershots and other devices that accept ordinary alkaline which are available everywhere. I have some extremely evil memories of running out of power with early nicad powered devices, endless problems with "memory effect" and other nasty stuff. No matter what camera i am carrying, you can count on me having at last one extra battery with me. Usually more. The tenergy sidekick power 10 power kit makes love a lot easier for me and other power paranoids when you're out with your gopro(s). The heart of the system, in my opinion, is a very cleverly designed gopro battery holder. It has a charging indicator diode and a short cable terminating in a usb plug. A gopro hero3 battery fits snugly into the holder. (it may, in fact, be magnetic, but i am not definite of this.) this is necessary because it means you can rest fairly well assured that the gopro battery won't accidentally drop out of its charging cradle. You can also employ the cradle on your computer usb port as well. Tenergy supplies its tenergy 13,000mah jumbo dual port external backup battery / power bank in this kit. Consider that a gopro hero3 battery has a capacity fair north of 1000mah and you realize that this unit has enough power to provide about 10 full charges. The 13000mah power bank has two usb sockets, one with a 1a output, the other 2.1a. A short cable with a miniusb connector allows you to charge the battery inside your gopro. My own personal preference is to employ the tenergy sidekick 1 which consists of a charging cradle and gopro hero3 battery along with the charging cradle included with the sidekick 10. This allows me to charge two gopro batteries in external cradles and leaves the gopro camera free for image making. My personal kit includes the 13000mah power bank, two tenergy gopro battery cradles, a total of three or four gopro hero3 batteries, longer cables with microusb, miniusb, apple 30-pin and lightning connectors and a 2a ac adapter in a small mesh bag. This is everything i need to hold my gopro shooting for a full day or two or more, as well as charge my phone(s) and small tablets. Obviously, you have to be judicious in what you charge and when to create sure you have the power for what you consider the most necessary task(s). The entire package weighs less than a pound, which might be a bit much for backpackers, but is fine for me. The core here, i think, is the ingeniously designed cradle for charging gopro hero3 batteries. The 13000mah powerbank external battery takes several hours to charge, but is supposed to have a long standby time. Overall, i am very impressed with this package. I've used it to charge various combinations of gopro batteries, smartphones and small tablets. There's enough battery capacity to cover all your needs for at least a day or two in intensive device employ and maybe more.Jerry