I have Sony DCR-PC 109 camcorder. I am going on himalayan expedition. Can I charge my Sony NP-FF51 and NP-FF71 Battery with burnton solaris flexible solar panel? How? IF yes, what adopters do I need for? How much time it will tack to charge battery?

Either panel will work, but you get more charging power (in less time) for your money with the Solaris 12. If my math is right, he NP-FF51 should charge (in good conditions) in about an hour. The NP-FF71 should charge in about 1.5 hours. If you use the Solaris 6 watt version, double the times, at least. Brunton estimates the charge time for camcorders is 1 -2 hours with the Solaris 12, which seems accurate for your situation. As for how you do this, you will need a vehicle power adapter since the Solaris units come with the female coupling (I assume this comes with the units here, but you should check). You can pick up a male car adapter online for less than $30. Make sure it's specific to your camcorder's model. Wasabi Power makes one as does TurboCharger. Sony might even have one in their accessories (I didn't check). Once you have that, you just find some sun, plug in the adapter that comes with the Brunton unit into the solar array then plug in your car adapter into that and connect your camcorder for almost magic charging. You should test this before you go, and in a variety of weather conditions in order to get the approximate charge times so you can plan ahead and know what to expect.