I’ve been trying to choose between a couple different solar charging products for this trip. Keeping all the electronic devices topped off is important.
Jim has a Joos Orange and likes it. But he did return the first one after the micro USB charge port corroded from exposure to saltwater. This was after only one day on the ocean. Since then, I’ve discovered most kayakers carry their Joos inside a Sealline iPad eCase to protect it from the elements.
The Joos has an internal storage battery rated at 5400 mAh so it’s capable of charging an iPhone a couple times but will only partially charge an iPad.
The Joos Orange was plagued by some issues with inferior or defective charging cables when first introduced but has supposedly corrected the problem. All models shipped after March 2013 have the upgraded cables. The Joos costs around $149.
The other solar charger I’m considering is the Powermonkey Extreme. It’s a two piece unit consisting of a fold out solar panel and a separate 9000 mAh storage battery. You get a bunch of connector tips and cables to fit virtually any device you have. It’s also billed as waterproof. But I have seen warnings about keeping water out of the connector ports.
The Powermonkey weighs a little less than the Joos and the extra large storage battery feature is attractive. However, most of the criticism is about the time it takes to top off the external battery (15 hrs!). I also wonder if it will fit inside a clear dry bag so I can attach it to my kayak deck to charge all day long? The unit costs around $179-199.