tablet keyboard

tablets usually have a removable keyboard 

that's so thin and light 

that the tablet needs a backstand to prevent it from falling backwards 

when in laptop mode 

but if the removable keyboard is heavier 

then the tablet wouldn't fall backwards when in laptop mode 

so if the removable keyboard contains a battery 

then the removable keyboard will be heavier 

so that the tablet won't fall backwards when in laptop mode 

and if the battery in the keyboard isn't heavy enough 

then the keyboard could also contain the laptop power brick or extra ssd 

and so on