Solar Charger AllPower solar charger 60 watt. 70 watt hour Voltaic lithium battery 50 watt hour Goal Zero 50 watt hour battery. Surface Pro 3. This is how I’m rendering Episode 4 of the Flinders ranges video today. It takes most of the day to do it this way. The video is just under 30 mins. About 2 to 3 hours running the Surface Pro 3 hard. Then upload on 4g. Just thought I’d show the complicated process.