Battery upgrade

Roll-Road features the 21700 battery from BMW supplier Eve in the Emma pro, which has the following advantages over 18650 batteries:

 1. Higher energy density: The 21700 battery is larger than the 18650 battery, so it can hold more battery chemistry and thus provide higher energy density. This means that Emma pro can have a longer riding range.

 2. Higher safety: 21700 batteries are safer than 18650 batteries. This is because 21700 batteries use more advanced material to better prevent overcharging and overdischarging, thus reducing the risk of battery combustion.

 3. Longer life: 21700 batteries last longer than 18650 batteries. This is because 21700 batteries use more advanced battery technology, which can better prevent battery aging and damage.

 4. Faster charging: 21700 batteries charge faster than 18650 batteries. This is because 21700 batteries are equipped with more advanced charging technology that charges faster, thus reducing charging time. "

Battery upgrade

Roll-Road features the 21700 battery from BMW supplier Eve in the Emma pro, which has the following advantages over 18650 batteries:

 1. Higher energy density: The 21700 battery is larger than the 18650 battery, so it can hold more battery chemistry and thus provide higher energy density. This means that Emma pro can have a longer riding range.

 2. Higher safety: 21700 batteries are safer than 18650 batteries. This is because 21700 batteries use more advanced material to better prevent overcharging and overdischarging, thus reducing the risk of battery combustion.

 3. Longer life: 21700 batteries last longer than 18650 batteries. This is because 21700 batteries use more advanced battery technology, which can better prevent battery aging and damage.

 4. Faster charging: 21700 batteries charge faster than 18650 batteries. This is because 21700 batteries are equipped with more advanced charging technology that charges faster, thus reducing charging time. "