Save to shopping list
Create a new shopping list
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Our bestseller

Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)

  • Rated voltage: 48V, Rated capacity: 20,3Ah
338,34 €
incl. VAT / pc
Express checkout 1-Click(without registration)
14 days for easy returns
Find out in which store you can check the product and buy it right away
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
Safe shopping
Free delivery to parcel machinesMore information
Smile - deliveries from online stores when ordered from €10.38 are for free.
You buy and delivery is free!
deliveries from online stores are free when you order €10.38 are for free.
Free delivery includes parcel delivery to a parcel machine
Write your opinion
Your opinion:
Add your own product photo:

Self-assembly e-bike battery - Battery Pack 48V 20,3Ah + CHARGER

A product for beginner users.

You do not know if the battery case will fit into your bicycle frame? Download the templates and print it in a 1:1 scale, after printing, check that both marked dimensions of 50mm are consistent with reality, otherwise the housing could be printed in a different scale and the dimensions will not match.

Download the battery template for the try-in on the bicycle frame - Click here


Advantages of assembling the battery yourself:

You save up to PLN 400
1. You save up to PLN 400 on the cost of the battery. The assembly is easy, no specialist knowledge is required, we attach simple and convenient "Step by step" instructions. An ordinary soldering iron is enough for assembly (we recommend the cheapest soldering station for about PLN 100). We estimate the duration of the assembly at about 1 hour for an inexperienced user. Our service department is there to help and know if you run into any problems.
You gain unique knowledge
2. You gain new, unique knowledge. You know what you buy. You learn how the battery works and how it is built, so you know how to care for it better, and it will repay you with a longer failure-free operation.
You save in the future
3. If you are going to build another electric bike for your family or friends or you will be willing to buy a second battery to increase the range - the ability to build yourself will result in further, even greater savings and another portion of interesting knowledge in the new hobby of electric bikes.

The kit includes:


CHARGER 13S 2A 54,6V DC 2.1/5.5






What's missing?

Universal silicone to immobilize the package and seal the housing
The bolts that attach the battery case rail to the bike


Be sure to connect the charger to the batteries in the correct order. ALWAYS connect the charger to a 230V socket first and then to the charging socket. DO NOT connect upside down. This can quickly damage both the charger and the BMS installed in your battery. Reverse connection causes the effect of sudden charging of the output capacitors of the charger through the BMS socket. This is accompanied by the flow of huge current that can damage the plug, socket, BMS mosfets or even the charger transistors.

The real capacity of a package (available capacity) is always lower than the nominal capacity of a package (rated capacity of its cells). It is assumed that a ready battery based on a package will have about 10% lower real capacity than the theoretical rated capacity. It is caused by many factors, such as the decrease in the capacity of the cells under load, or leaving the unused capacity by the BMS (discharge to the minimum cell voltage to about 2.7V) in order to extend the life of the battery.

If your BMS has a turn-on circuit (two white wires) and it is disconnected (wires are not short-circuited) then it needs to be connected (short-circuited) to turn on the BMS.

How to install the battery?

Cell configuration
Maximum discharge current
35A (maximum performance of the connected controller)
Rated voltage
Rated capacity
20,3Ah (about 19Ah available)* 974Wh
Cell type
Samsung INR18650-29E
Weight of the finished battery with the rail
5,5 kg
Charger included
LiIon, 54,6V DC 2.1/5.5
on a professional welding machine, tape pure nickel 100%
IdoSell Trusted Reviews
4.92 / 5.00 650 reviews
IdoSell Trusted Reviews
Szybko, sprawnie, profesjonalnie
Jest Ok
This page uses cookie files to provide its services in accordance to Cookies Usage Policy. You can determine conditions of storing or access to cookie files in your web browser.