One of the main ways to extend battery life is to reduce the speed at which the car is driven. Using the lower speed (usually 2.5mph) will allow your child to get more driving time. It is also important to ensure that the battery is allowed to fully run down and then allowed to fully recharge before it is used again. Continually ‘topping up’ the battery reduces its effectiveness. Purchasing a second battery, so that you can swap out the battery when it needs charging can also help improve battery life, as well as meaning your child can have longer uninterrupted driving time.