Self-assembly e-bike battery 13s3p 48V DP21700-4 12–15Ah
- Battery available in capacity
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Self-assembly e-bike battery 13s3p 48V DP21700-4 12–15Ah
Battery 48V
Eco Range
Standard Range
Advantages of assembling the battery yourself:
Save up to 100 Euro
Gain unique knowledge
Save in the future
The kit includes:
13S3P PACK
Lithium-ion pack. It's the main component of the battery. After adding a compatible BMS, it's ready to use.
BMS
Battery Management System (BMS) – this device automates the battery's operation. When connected to a suitable charger, it ensures proper charging and discharging. It's an essential part of a properly built e-bike.
Lithium batteries (Li-ion, Li-Po, etc.) require attention and care. They must not be charged above 4.2V per cell or discharged below 3V per cell. BMS exists to monitor these conditions in daily use.
ACCESSORIES FOR BOTTLE-TYPE BATTERY ASSEMBLY
- Red wire 12 AWG – 1 m
- Black wire 12 AWG – 1 m
- Red wire 16 AWG – 0.5 m
- Black wire 16 AWG – 0.6 m
- Epoxy glass insulator – 12.5 mm x 12.5 mm
- Thick heat shrink – 10 mm x 12 cm
- Medium heat shrink – 6.4 mm x 12 cm
- XT60 connector set
- Double-sided tape
- Kapton tape
- Spiral cable wrap – 0.65 m
- Rivet nuts and mounting screws – 4 pcs
CASE
The case fits 39 x 21700 cells and has a built-in power indicator.
The set also includes a mounting rail.
Laser cut plates
MOUNTING PLATES
The package is welded on laser-cut pure nickel plates with a thickness of 8x0.15
Note:
Do not connect this battery model to the Mxus 3K Turbo 3000W MTB kit.
Always remember the correct order when connecting the charger to the battery. ALWAYS connect the charger to the 230V socket first, and only then to the battery charging port. DO NOT reverse this order — doing so may cause serious damage to both the charger and the BMS in your battery. Reversed connection may cause a sudden inrush of current through the BMS socket, damaging the plug, socket, BMS MOSFETs, or even the charger transistors.
The actual usable capacity of the pack is always lower than the nominal capacity (based on individual cells). A finished battery will usually offer about 10% less real capacity than the theoretical one. This is due to several factors, such as voltage sag under load or unused capacity left by the BMS to protect the battery’s lifespan (e.g. stopping discharge around 2.7V per cell).
If your BMS has an enabling circuit (two white wires) and it’s disconnected, you need to short those wires to activate the BMS.
Each cell and package in the nexun.pl online store is covered by a 24-month warranty for consumers and a 12-month warranty for companies.
The warranty covers:
- Cell damage
- Capacity decline (over 15% per year)
The warranty does not cover:
- Errors in assembly that do not comply with the manual or workmanship
- Improper maintenance
- Mechanical damage
- Changes in the product's operating characteristics depending on weather conditions (temperature)
- Water damage
To maximize battery life, use the following recommendations:
1. Fully charge the battery after each ride
2. Fully charge the battery every 3-4 weeks when you do not use it, e.g. winter break.
3. In the autumn and winter (temperature below +12*C), lithium-ion batteries have a lower capacity (by max. 30%) than in the summer, which results in a shorter range. This is normal. During this period, do not use the full powerf or the first 10-15 minutes of riding.