Etón BoostSolar: $99 Solar Power Battery Backup System Josh Smith05/07/2013 The Etón BoostSolar is a solar-powered smartphone and tablet charging solution that delivers power anywhere there is sun and includes a battery capable of delivering two charges to the typical smartphone. Users looking for mobile power solutions and emergency prep products may recognize the Etón name as the manufacturer behind many Red Cross branded emergency and outdoor power products.Advertisement The Etón BoostSolar is a solar charger and battery pack that users can charge up with the sun or by a USB port. The 5,000 mAh battery can charge a smartphone twice and can push enough power to charge demanding tablets, which are picky about power requirements. The Etón BoostSolar is a solar charger with a 5,000 mAh battery. Users can plug the USB cable from an iPhone, Android, iPad or other tablet into the Etón BoostSolar to get a jolt directly from the solar charger or can pop out the battery to charge up while charging another battery in the Etón BoostSolar. Users can swap batteries to keep charging, pulling unlimited power from the sun.Advertisement The Etón BoostSolar can charge the included 5,000 mAh battery in about 16 hours of sunlight or in about 5 hours over USB. Each battery includes a LED indicator to show the battery life left.Advertisement Switch between batteries to keep the power flowing. Etón ensures that the solar panels will survive your outdoor adventures thanks to an IPX-4 rating for water, which means the solar panels can survive splashes and a little rain. The rugged rubber exterior will help protect the device while in use. The corners feature openings so users can clip the solar charger to a backpack while walking, for on the go charging. The BoostSolar measures 3/4-inches x 6-inches x 6-inches and weighs 11.7 ounces. While outdoors types may be immediately drawn to the BoostSolar it is also a good option for users who are looking to keep a device on hand for power in an emergency. A device like this would have provided a better power solution than hunkering down in a running car while the power was out for nearly a week after a storm last summer. Users can also share the power thanks to multiple USB ports.Advertisement Etón offers the BoostSolar in black and a lime green on Amazon and through REI. The Etón BoostSolar retails for $99.99. No pricing is available for spare batteries at this time.