What advantages did the Patriots possess that allowed them to win battles against the British?

The brits fought far away, so reinforcements and supplies took a bit to get there. The patriots also didn't use conventional tactics like the British did and that was an advantage. The patriots had morale too

The British fought a war far from home. Military orders, troops, and supplies sometimes took months to reach their destinations. The British had an extremely difficult objective. They had to persuade the Americans to give up their claims of independence.