I actually try to avoid "electrics" for field use. I suppose the largest exception would be FRS radios for hunting, mushrooming, etc I will check into this product, hopefully the reviews are favorable. How long does it last once charged up? My usual fire starting implements are a Doans magnesium /flint bar, bic lighter(s), strike anywhere matches in a brass matchsafe w/ the silva compass on top. I also like a zippo lighter, put extra flimts under the felt packing cover, and you can bur even gasoline with them. (learned that from my dad, seems a few drops of gasoline powered a number of them in WWII)
As an added note; salt water will ruin lighter flints! They crumble. If your journey's take you near salt water vacuum seal your emergency lighters and or flint bars. I had that experience with zippo flints when i left my lighter in my pocket while swimming in the Med many years ago.