Spintec will NOT give back lost run time.
All spintec does it draw lots of the energy out of the cells, because it pulsates, it thus allow the cells to rebound back to 1.2v and then draws energy again. its like discharging down to 5.4v many many times. yes it draws more juice out, thus you can then put more juice back in on the NEXT charge.
it like running your fuel tank till the cars empty light goes on and then filling up.
vs running you fuel tank dry, restarting the car and then running out the fuel lines, restarting the car and getting that every last drop out of the engine aswell.
obviosly when you fill up the next time you will get more fuel into the car. but it doesnt give you more capacity.