After utilizing all eight watts of lithium-ion battery power, recharge the Switch 8 on the go with the portable Nomad 3.5 Solar Panel in about six hours or from any USB source in less than four hours.

ENGADGET: Goal Zero's Switch 8 solar charger bundle now available for $100

As the latest in Goal Zero's portable, solar-powered ecosystem of products, the Switch 8 Solar Recharging Kit can bring back a dead smartphone instantly and replenish your battery in less than three hours.

ENGADGET: Goal Zero's Switch 8 solar charger bundle now available for $100