... for laptop, 2.For cellphone,laptop,DC,PDA,MP3,MP4, PSP, 3.Li-ion rechargeable battery 12000mAH(3pcs) Portable solar charger for laptop, laptop charger, Li-ion rechargeable battery ... , over current and over-charging/rechargingLong working life, Li-ion battery replaced availableBattery capacity is doubled of NB battery Buy solar power pack for laptop