... , 33000mah 4.charge laptop,pda,cellphone,camera,dvr,mp3... Notebook BatteryThe products is a commercial portable power with high capacity ... ,(the output voltage can be set as customer's demand in our factory ) , it could charge laptop , camcorder, mobile phone, ... ,and other digital products anywhere anytime. **Specification:1. Built-in rechargeable lithium battery (33000mAH/3.7V);2. Input voltage: DC12 ...