### Battery Basics:

In order to learn more about the differences between 48V & 52V batteries or how a batteries Ah rating affects its range, let’s start with some basics which are important aspects to know and understand about ebike batteries!

Ebike battery packs are made of numerous individual battery cells and the quantity and configuration of cells inside of the battery pack are what result in the overall ebike battery pack (Voltage) as well as the overall capacity of the battery (Amp Hours or Ah). For more information on our range estimates and battery pack configurations please visit our range estimate link here.

### Figure 1. Individual Battery Cells Assembled into a Battery Pack

So, what is the Volt?

A volt (Abbreviated V) is an electrical pressure within the battery that pushes to the current around your e-bike motor system.

What does this mean…

Voltage is what pushes the flow of electric energy which in turn relates to the “speed” of the ebike motor. In other words, voltage is responsible for the motor RPM (rotation per minute). From a design point of view, electric motors are made to turn at a certain RPM for a given application, determined by its construction. If the motor receives a certain voltage it will turn at a given speed, and if the voltage within the battery increases, the motor will spin faster.

So, what an Amp?

The amp is a measure of the current that the e-bike motor is drawing.

Putting Volts and Amps together!

When you feel like Evel Knievel on your ebike (yes, this is a thing!) and go full-throttle, what is happening is that more amps are drawn from the battery in order to provide your ebike with the higher power that you are demanding in that moment.

Where does Battery Capacity fit in?
Battery Capacity, also known as (Ah, Amp Hours, or Watt-hours,) can be thought of in a similar way to your car’s gas tank capacity. The larger your car’s gas tank is, the more gallons which it can hold, and the farther you will be able to travel. This is the same with regards to battery capacity as in general the larger the Ah (Amp hour), rating the larger the battery capacity!

Example 1: A 48V 20 Ah battery will have twice the capacity and range of a 48V 10 Ah battery.

Note: When comparing the capacity of two different voltage batteries (such as 48V and 52V) with the same or similar amp-hour ratings it is best to convert the amp-hour rating to watt-hours to compare the overall battery capacity using watt-hours. Watt hours are another way to measure and compare capacity. A Watt Hour is a unit of measurement for power over a period of time.

Watt hours are calculated by multiplying the nominal battery voltage (48V or 52V) by the battery Amp hour (Ah) rating.

Example 2: Which battery has a larger battery capacity, a 48V 10 Ah battery or a 52V 10 Ah battery?

Step 1: Convert the Amp hour rating to watt hours,

48V x 10 ah = 480 watt hours

52V x 10 ah = 520 watt hours

We can see that the 52V 10ah battery will have the larger battery capacity of 520 watt hours when compared with the 480 watt hours of the 48V 10 ah battery which is a 40 watt hour difference!

What's the difference then between 48V and 52V batteries?
If you want to learn more about the difference between our 48V and 52V battery options then we recommend clicking the button below to check out the comparison article link!

The right decision…
Unfortunately, it is not that easy as ebike battery packs are in no way a one size fits all item which is why we offer so many different battery options! In order to see the estimated range based on the motor and battery pack that you are looking at, we recommend clicking the button below to learn more about our range estimates!