Most 8 or 9 inch tablet work time is not so long,especially some no brand tablet,Via 8650, 8850 Tablet,allwinner a10 tablet,RK3066 tablet,don't work so long due to orginal bad battery,you can change a new battery to extend your tablet work time.
5000mAH Battery can make your 8 or 9 inch tablet work over 4-7 hours.
Material: Polymer Lion
Output Voltage: 3.7V
Input Voltage: 5V
Fit for tablet:7,8 or 9 inch Chinese brand tablet or no brand tablet,such as ICOO D70Pro II, Ployer,onda,cube,vido/yuandao,Teclast,AMPE,SANEI,lander,PIPO,Ainol,Etc
Before you release order,please make sure the battery size are suitable for your tablet orginal battery room.
Advise find a eletronics device repair store to change,due to need solder the cable with special tool.