Ok Thanks for reading I am new to the forum had the 2006 GS250 for about 6 months I bought the bike used with 1800 miles now I have around 7000 miles. Problem is that I am having issues starting the bike. It  seemed like a dead battery so I have tried to charge the battery but had same issue so I replaced the battery and spark plug, was able to get the bike to start but after driving for about 20 to 30 minutes I try to turn over the bike and get no lights like the battery is dead. If I hook up a charger the bike starts like normal. What on the bike charges the battery when running and could this be the issue why everytime I go to start the bike the battery seems dead. So I am able to start the bike when external battery of some kind is connected but battery seems drained after each ride