My 2 cents, from another noob
get a charger, charge the battery out of the bike
next day, turn charger off, use volt meter (home depot $5), check 12-14 v
install in bike, before turning anthing on, voltage should read the same, if not short on bike or corrosion.
turn key on, should read at least 12 v
if it starts, read voltage over 12v closer to 14 your good, allow it to idle, check it every min. ensure voltage is not dropping,
if voltage dropping, rev the engine and watch meter does it rise or continue to drop? (possible 2 person thing)
>>expert throw you advice here<< (I dont know all the techie stuff on a blast)