For SOTA type QRP, looking for a solar cell for multi-day trips. REI sells the Goal Zero Nomad series among others. Interested in lightweight with enough capacity to charge HTs and Bioenno batteries for KX2. Three to four summit activations over two to three days. Questions for users of QRP solar: - Do you drag along all the chargers for Bioenno/HT type batteries when doing backpack QRP? Seems like a lot of extra weight. - For things that don't use USB plugs (HT chargers) is there a way to adapt to USB for use with solar? - Is Goal Zero Nomad an acceptable brand? What have you used?