A shock pump is designed to fill a very small volume of space with very high air pressures.

A tire pump is designed to fill a large volume of air, to relatively low pressures, pretty quickly.

You can technically fill a schrader valve tube using a shock pump, but because the volume of air for each repetition of the pump will be so low, it might take a week to fill the tire.

A shock pump will not mate with a presta valve at all.

On a practical level, you should use a shock pump to fill your shocks, and a tire pump to fill your tires.  

Can I use a shock pump to inflate a tube?
I have a few day old Nexus 7 tablet, unrooted, bootloader still locked, and otherwise in factory condition. This morning, it ran its charge out. When I plugged in it, this happens:


Google Logo appears.
Nexus Logo appears.
Lock screen which shows charging: 0%.
White screen, device powers off.
Repeat.


What is happening? Thanks!
