Bite the bullet and get another new battery. Once you fully discharge modern GRT low volume electrolyte batteries, they do not fully recover their full reserve capacity...and their life is severely impacted.
As for WYW suggestion, well taken, but having done the roll or push starting method not very successful on my 600 lb carbed Sporty, doing it on a "modern" 950 full sized tourer, may be tough with a weak battery, as so many accessories work at draining the "surface" charge your HD needs (200A for 4 secs)...to prime the pump, EFI enable, turn on all lights/runninging lights. ECM, TSSM, Regulator etc.
You may be successful...but the bottom of the hill comes mighty early and pushing MOCO iron beyond that is no joy, at least one with my 135 lb "slight of build" frame would be capable of...! :sd Good news is, my local HD dealer will pickup your bike FREE if you are having them do the work...no problem with that, and no huffing and puffing from this ol' guy! :coffee