Why does a motorcycle need a battery to keep running?

If you bike has a magneto, you don't need a battery to keep it running, but there are very few of those bikes around anymore - small dirt bikes, maybe. If you have a magneto and kick start you don't need a battery at all. read more

Not all bikes NEED a battery to keep running, as mentioned by Andrew, mopeds and early scooters didn’t have batteries at all, so once you had kick-started them into life they continued to run happily. read more

Most motorcycle batteries are at their best for about 3 years. read more

Many bikes do not output enough at idle to stay running. These bikes need a battery to provide power during these times. You know, times like stop lights/signs or stuck in slow traffic. A battery also helps absorb quick voltage spikes. read more