The battery is an important component of the electric bike, providing autonomous power for the electric motor. The ebike battery type determines its weight, cyclic life and operating temperature range. The mileage of the electric bike on a single charge depends on the battery capacity, and its voltage affects the speed and must match the operating voltage of the motor and controller. Therefore, the battery for an electric bicycle must be selected taking into account the desired range and the characteristics of other electrical components.

Beginners, as well as people who are pathologically short of money, or trying to save money, most often use AGM lead-acid batteries. Some cyclists go even further and make batteries from elements for uninterruptible power supplies, which are the cheapest. The main problem of these elements is that they are designed for surface currents, and in the mode of deep discharges – charges, they do not live very long. Factory AGM type ebike battery works better and last longer because they are designed for use as traction for electric vehicles. When buying, you only need to test the battery to make sure it works.

ead-acid batteries are cheaper than others, they are unpretentious in operation and are able to work in cold weather. These batteries are:

  • safe to use
  • heavier than others
  • therefore load the e-bike
  • impairing its handling and reducing the load capacity.

If we take batteries with a small capacity and weight, less than those recommended by the manufacturer, for a given type of wheel e-bike motor, then with a high discharge current, their capacity decreases. When driving your electric bike with a small battery, it is recommended:

  • not to accelerate hard
  • do not accelerate quickly
  • refrain from high speeds.

Or if you are new to the ebikes, then you might want to read up on our What is an Electric Bike guide where we discuss the basics in detail.