you just sit and watch the screen until the battery goes completely.
you cant
You can't you just have to beat him and get it
Hearthome's badge
in the 1st gym badge
you get the coal badge after defeating Roark in eterna city
if you are looking for the third gym badge i suggest Veilstone city.
Get the first gym badge
The fifth gym leader in Pokemon platinum is crasher wake but you get the fourth badge.
You can use the GTS in Pokemon Platinum after you get the first gym badge from the Oreburgh City gym.
The Gym Leader Name is: Volkner and the Badge is called Beacon Badge. In Pokemon diamond and pearl he has (Raichu, Ambipom, Octillery, and Luxray).In Pokemon platinum Voltner has (Jolteon, Raichu, Luxray, and Electivire) for his rematch he has the same as platinum but add on Lanturn.You rematch him in platinumBut if you want to see the Pokemon just go to this website ---->(http://bulbapedia.bulbagarden.net/wiki/Volkner)Have fun battling Voltner!!!! :D
you must beat the eighth gym leader and he will give you the badge.
Once you obtain a badge it's permanently stored in the badge case.