Goal Zero Sherpa 100 Solar Kit
Crutchfield Customer Review (What's this?)
Awesome device. I had a Sherpa 50 that I bought years ago for a trip. I took it out of storage and tried to charge it for my current trip and it swelled up like an orange - I guess they meant it when they said you had to periodically charge it! Anyway, I bought the Sherpa 100 as a replacement so I would have power for my laptop, iPad, iPhone, GoPro camera, and satellite phone while I was on a weeklong sailing trip. I charged the unit on land from a wall outlet and then on the boat using either the solar panel that came with the kit (chained together with the smaller solar panel I had from the Sherpa 50 kit) or from the boat's DC power when it was available. Kept my devices charged all week.
Pros: Large capacity. Can charge up a laptop plus a cell phone and camera on a single charge.
Cons: Whenever possible, use the 12v or laptop ports to charge a laptop rather than the 110 inverter. If you use the inverter it drains the Sherpa more than with the other methods. I bought a 12v car adapter cord for my laptop and used it to charge the laptop from the Sherpa. Also, to avoid the problem I had with my old Sherpa 50, this time I'm leaving the Sherpa 100 connected to my wall outlet between uses instead of throwing it in a drawer. Hopefully, that will preserve its function.