... efficiency up to 17%; 2, solar panels Specifications: 5.5V / 200mA; 3, charger built-in high capacity rechargeable battery ... up to 1.2A 6, the cell phone charger to charge time: about 120 minutes (different brands and ... to charge the built-in battery charging time: 8 hours; 8, under the sun to the solar charger charging time ... equipment. 12, support the iPad tablet charging solar charge for iphone4s