By upgrading the battery cells in your original battery, that is, by replacing it with battery cells slightly higher than the current mAh value, you can make more range in a single charge.

Are you unable to travel far enough to commute, to school, or on tours due to the capacity of your battery? Then let's upgrade the battery cells of your original battery.

There are some elements that you should pay attention to when doing this upgrade.

If we know the number of battery cells in the battery, we can reach the result directly, but generally, companies write the battery details with direct results such as 36V 7.8Ah. However, we do not know whether there are 30 batteries inside the battery case (we call it 3P 10S), 40 battery slots or if there is enough room to put 50 batteries. First of all, it has to be determined. After that, we can move on to the decision stage to upgrade from how many amps to how many amps. Let's illustrate this situation with an image.



The battery cells you see in the picture are old battery cells from two different models of electric bikes. Now, let's price separately for the battery upgrade of these two models.


Electric Bicycle & Scooter Range Extension Cost Calculation



Green Batteries:

In this product, 40 battery slots (4P) are connected in 10 series (10S). So we can use a maximum of 40 batteries. Here, we will use 2600mAh and 3200mAh for each battery cell, so let's get two separate prices:

36V 10.4Ah $144

4P X 2600mAh = 10.4Ah X 10S = 36V 10.4Ah

By the way, 2500mAh batteries were used in the original of this battery, that is, it was produced as 36V 10Ah.

The other price offer will be as follows:

36V 12.8Ah $176

4P X 3200mAh = 12.8Ah X 10S = 36V 12.8Ah

As can be seen in the example here, we changed the battery cells of an electric bicycle battery that was originally 10 amps and made 12.8Ah. We were only able to make an increase of 28%. Now let's move on to the other group.


Purple Batteries:

In this product, 30 batteries (3P) are connected in 10 series (10S). In other words, the company used 30 batteries. However, we see that this battery has a 5P battery slot, so 50 batteries can fit in this battery. (We assume that the BMS card supports this battery in the use of 50 batteries.) Here, we will use 2600mAh and 3200mAh for each battery cell, so let's calculate two different prices:

Original state: 36V 7.8Ah (2600mah X 3 = 7.8Ah X 10S = 36V 7.8Ah)

First, let's get the price of 30 3200mAh batteries.

36V 9.6Ah $132

3P X 3200mAh = 9.6Ah X 10S = 36V 9.6Ah This battery group is generally called 36 volts 10 amps in the market, but in fact, the product is 9.6 amps, not 10 amps.


Now, let's calculate the price of 2600mAh and 3200mAh batteries using 5 parallel (5P) ie 50 batteries.

36V 13Ah $180

5P X 2600mAh = 13Ah X 10S = 36V 13Ah


36V 16Ah $220

5P X 3200mAh = 16Ah X 10S = 36V 16Ah


As you can see, if the BMS card supports a battery with 50 battery slots, we can increase it from 7.8 amps to 10 amps and even up to 16 amps. When you increase it to 16 amps, you will be making more than twice as long.

So what if the BMS board does not support high amps? Of course, buy a BMS card that supports high amperage and replace it.

In this article, we have given you a preliminary information about upgrading a normal electric bicycle and scooter battery, that is, replacing the batteries with higher values. Prices here may vary according to market conditions and the brand of the battery used. If you want to renew the batteries of your electric bike or scooter, you can contact us.