Upgrade your Crazy Cart Standard model with our high-performance lithium-ion batteries and experience the ultimate in power and performance! Unlike traditional lead acid batteries, our lithium-ion batteries maintain a consistent voltage throughout their lifespan, delivering full power for longer periods of time. Therefore, expect over 1 hour of run time on a single charge. That means more time cruising, more time exploring, and more time having fun! IMPORTANT: When using a 48 volt battery, disconnect the ground wire from the on/off switch first to prevent damage to the LED light, which is not compatible with 48 volts. This step ensures you can restore the LED if switching back to a 36 volt battery later. It is crucial to monitor motor temperatures to ensure its longevity. Running the motor continuously without allowing cool-down breaks can lead to overheating. Please exercise caution and follow these recommendations for optimal performance and durability.