E-bike battery - Downtube 13s5p 48V DP-21700-7 (20-25Ah)
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E-bike battery - Downtube 13s5p 48V DP-21700-7
Battery 48V
Range Eco
Range Standard
BATTERY FOR ELECTRIC BIKE – 13S5P 48V DP-21700-7
A modern and efficient lithium-ion battery, built in a 13s5p configuration and based on 21700 cells. Its nominal voltage of 48V ensures stable operation and sufficient power, making the battery an excellent choice for electric bikes intended both for daily commuting and for longer recreational rides.
The bidon-style housing allows for easy installation in the bottle cage position, providing an aesthetic and practical solution for standard bike frames. The integrated BMS system protects the battery from overcharging, deep discharge, and overheating, extending cell lifespan and enhancing user safety. A reliable power source that combines high capacity, easy installation, and attractive design.
You have to see - Akademia E-bike
Battery construction instructions 13s5p | Akademia E-bike
Installing the rail in the bicycle frame | Akademia E-bike
Attention:
Do not connect this battery model to the set MTB Mxus 3K Turbo 3000W.
You don't know if the case will fit your bike frame? Download the templates and print at a scale of 1:1, after printing, check whether both marked dimensions of 50mm are consistent with reality, otherwise the casing could have been printed in a different scale and the dimensions will not match.
Download a battery template for fitting in a bicycle frame - Klick here
Remember to connect the charger to the batteries in the correct order. ALWAYS first connect the charger to the 230V socket and then to the charging socket. DO NOT connect it the other way round. This may quickly damage both the charger and the BMS installed in your battery. The reverse connection causes the effect of sudden charging of the charger's output capacitors through the BMS socket. This is accompanied by the flow of huge current that can damage the plug, socket, BMS mosfets or even charger transistors.
The real capacity of the pack (available capacity) is always smaller than the rated capacity of the pack (rated capacity of the cells it contains). It is assumed that the finished battery based on the package will have approximately 10% less real capacity than the theoretical rated capacity. This is caused by many factors, such as a decrease in cell capacity under load, or the BMS leaving unused capacity (discharge to the minimum cell voltage of approximately 2.7V) in order to extend the battery life.
If your BMS has a turn-on circuit (two white wires) and it is disconnected (the wires are not short-circuited), it must be connected (short-circuit the wires) to turn on the BMS.
Where are down tube batteries installed?
Each battery 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
- BMS damage
- Capacity decline (over 15% per year)
The warranty does not cover:
- Errors in assembly that do not comply with the instructions or workmanship
- Improper maintenance
- Mechanical damage (cracked/broken casing, melted connection terminals, etc.)
- 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 power for the first 10-15 minutes of riding.
4. Do not charge the battery with a current higher than 3A.