Nintendo Switch Joy-Con Controller Battery

This Nintendo Switch Joy-Con replacement battery is what you need to bring one dead left or right Joy-Con back to life! Battery degradation is an inevitable part of your controller's lifespan extend it with this replacement battery. If your left or right Joy-Con wont turn on, wont ...This Nintendo Switch Joy-Con replacement battery is what you need to bring one dead left or right Joy-Con back to life! Battery degradation is an inevitable part of your controller's lifespan extend it with this replacement battery. If your left or right Joy-Con wont turn on, wont hold a charge, or you simply experience poor battery life, this replacement battery may be what you need to fix it.