confused about injectors dead time and batt comp

i need to know what is the diffrent between the inj batt comp and inj dead time and inj timing ??

what is the important thing we should to know about this

iam using motec ecu and i have batt comp and inj timing i need to know what is the right nu to them

In the Motec Mx00 ECUs, the term 'Injector Battery Comp' is simply what Motec use to refer to injector dead time. In these ECUs you would enter your injector dead time data into the injector battery comp table.

Injector timing refers to when in the engine cycle the injector supplies fuel. This relates to degrees BTDC on the compression stroke. You can adjust/move the injector timing around to affect whether you're injecting against an open intake valve or a closed intake valve.