Self-assembly battery - Battery Pack 48V 20,3Ah + CHARGER(V4)
- Rated voltage: 48V, Rated capacity: 20,3Ah
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
WHICH KIT IS THIS BATTERY FIT FOR?
Self-assembly e-bike battery The battery is ideal for installation with City and Trekking conversion kits.
Batteries should not be used with MTB conversion kits.
The maximum discharge current of the battery is 35A (our Self-assembly batteries do not support conversion kits above 1500W).
Advantages of assembling the battery yourself:
The kit includes:
CELL PACKAGE 13S 7P
Lithium-ion package. It is the main element for building a battery. After soldering the correct BMS, it is ready to work.
Cell type: Samsung INR18650-29E
Estimated range: 97km
- at a speed of 25 km / h
- no wind, on flat asphalt
- without power assist, driving "on the throttle"
CHARGER 13S 2A 54,6V DC 2.1/5.5
A quick automatic charger for LiIon and LiPoly batteries (lithium-ion and lithium polymer).
It does not require configuration, it works immediately. After charging the battery, it switches to standby.
The housing is roomy enough that it allows you to use all 91 baskets for cells, and it will also fit BMS inside
Battery management system (BMS) - it is a device that automates the entire process of using batteries. After connecting a suitable charger to the BMS, it monitors its proper charging and discharging. It is an integral part of a properly constructed electric bike.
Lithium batteries (lithium ion, lithium polymer and others) are serviceable and require care and attention. They cannot be charged above 4.2V per cell and discharged below 3V per cell. In order to supervise them in everyday use, a device called BMS was invented.
ACCESSORIES FOR INSTALLATION
Accessories for installation in a ready-made battery: Cable 12 AWG (black and red), XT60 connector, Spiral cable protection ø 8mm
KAPTON TAPE 25mm
Protective self-adhesive layer enables operation up to 280 degrees Celsius and electric and antistatic insulation.
It is widely used in the construction of electric bicycle installations, especially batteries.
A set of 4 washers for mounting the battery case G91 to the bicycle frame.
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.