... . 2. 10-year Battery life. 3. Compact design, Portable style, Popular. 1. Key Features:• Good load capability, ... • Integrated battery protection / charge control module • Compact design, Portable style • Both Solar and AC charging way, solar charging is ... Charge Controller, inverter or UPS switching function) 300W Portable Solar Backup System, portable solar charger for iPhone/iPad/iPod etc.