... Charger Specifications1.Solar panelMonocrystalline 2.2W glue sealed2.BatteryLithium battery, 1 pc 2400mAh3.LightLED, 1 pc 12000mcd4.Outer ... structure:Solar cell phone charge battery. And lithium battery is generally the best that should be the lithium polymer battery, security, high performance. ... stored in the solar cell phone charger Built-in battery, when need for charging phone, solar cell phone ...