Fast Delivery
20S 8P 72V 40AH Battery for SURRON eBikes
$1,079.99
Free Duty Shipping
$1,079.99
Free Duty Shipping
$1,079.99
Free Duty Shipping
$1,079.99
Free Duty Shipping
$1,099.99
Free Duty Shipping
$1,099.99
Free Duty Shipping
$1,099.99
Free Duty Shipping
$1,099.99
Free Duty Shipping
$1,129.99
Free Duty Shipping
$1,129.99
Free Duty Shipping
$1,129.99
Free Duty Shipping
$1,129.99
Free Duty Shipping
$1,079.99
Free Duty Shipping
- SURRON Bike Compatibility & Premium Cells : The 72V 40Ah lithium battery, built for SURRON electric bikes, uses original Samsung 21700 50S cells in a 20S 10P configuration (200 cells total), ensuring 800-1000+ charge cycles for long-term reliability.
- BMS with Bluetooth for Battery Monitoring : Equipped with a 100A discharge BMS (with Bluetooth connectivity) tailored to the 72V 40Ah battery, it protects against overcharge/over-discharge and lets you track voltage, capacity, and health via a mobile app.
- Customizable Discharge Plugs for SURRON Setups : The 72V 40Ah ebike battery offers swappable plugs (QS8/10, Anderson, XT90F/M, etc.), designed to fit various SURRON electric bike models and user preferences.
- Fast Charging for 72V 40Ah Battery : Paired with an 84V 5A fast charger, this setup recharges the SURRON bike battery to 80% in 7 hours, complementing the 72V 40Ah capacity for quick back-to-ride readiness.
- High-Discharge Power for 5KW Motors : With 100A continuous discharge (300A peak), the 72V 40Ah battery matches 5KW motors in SURRON electric bikes, delivering consistent power for demanding rides.
BMS
60A for 72V 3600W Motor
80A for 72V 4800W Motor
100A for 72V 6000W Motor
Discharge Plug
QS8 plug
Anderson 50A
XT90F/M
Wire only
BMS
Discharge Plug
Long-Lasting Power
The 72V 40Ah lithium battery, designed for SURRON electric bikes, is a high-performance power solution. It uses original Samsung 21700 50S cells (20S 10P, 200 cells total) with 800-1000+ charge cycles for long-term reliability, delivering 100A continuous discharge (300A peak) to match 5KW motors seamlessly.
Integrated with a 100A BMS featuring Bluetooth, it enables real-time monitoring of voltage, capacity and health via a mobile app, while protecting against overcharge, over-discharge and short circuits.
With customizable discharge plugs (QS8/10, Anderson, XT90F/M, etc.) for versatile SURRON compatibility and an included 84V 5A fast charger for efficient recharging, this battery elevates every ride—whether daily or adventurous.
Integrated with a 100A BMS featuring Bluetooth, it enables real-time monitoring of voltage, capacity and health via a mobile app, while protecting against overcharge, over-discharge and short circuits.
With customizable discharge plugs (QS8/10, Anderson, XT90F/M, etc.) for versatile SURRON compatibility and an included 84V 5A fast charger for efficient recharging, this battery elevates every ride—whether daily or adventurous.


Powering Batteries
The 72V 40Ah battery for SURRON electric bikes leverages original Samsung 21700 50S cells, a key choice for reliable performance.
These cells deliver 5000mAh nominal capacity, supporting the battery’s 800-1000+ charge cycles to ensure long-term power for SURRON rides.
With 25A continuous discharge capability (up to 45A with 80°C temperature cut-off), they enable the battery to output 100A continuously (300A peak) – perfectly matching the 5KW motors of SURRON e-bikes.
Their 21700 size (21.45mm×70.55mm) and flat-top design also facilitate the 20S 10P configuration (200 cells total) in the battery, balancing power and durability for consistent performance on every ride.
These cells deliver 5000mAh nominal capacity, supporting the battery’s 800-1000+ charge cycles to ensure long-term power for SURRON rides.
With 25A continuous discharge capability (up to 45A with 80°C temperature cut-off), they enable the battery to output 100A continuously (300A peak) – perfectly matching the 5KW motors of SURRON e-bikes.
Their 21700 size (21.45mm×70.55mm) and flat-top design also facilitate the 20S 10P configuration (200 cells total) in the battery, balancing power and durability for consistent performance on every ride.


Custom Discharge Plugs on Demand
Changing the battery’s discharge plugs to your preferred type (QS8/10, Anderson, XT90F/M, etc.) delivers key perks for SURRON e-bikes: better compatibility with diverse setups, easy plug swaps to cut maintenance time/costs, and adaptability for future upgrades—no full battery replacement needed.


Ensures The Safe
The battery’s built-in smart BMS acts as its "brain," monitoring cell voltage, current, and temperature in real time. It prevents overcharge/over-discharge, balances cells, and optimizes charging/discharging rates to extend lifespan and ensure safety. With real-time data tracking and alerts, it keeps the battery efficient and reliable for SURRON e-bikes.


Power Revival
The 84V 5A fast charger, paired with the battery, is tailored for SURRON e-bikes. It cuts charging time with smart algorithms—adjusting current/voltage to prevent overcharging and extend battery life. Featuring over-current, over-voltage, and short-circuit protection, it ensures safe charging. Compact and 110-240V compatible, it’s portable for on-the-go use.


Real-Time Insights
The battery’s BMS connects to mobile devices, enabling real-time tracking of key metrics—including cell voltage, current, temperature, state of charge (SOC), and cycle count—through a dedicated app.
Riders can check the battery’s health and performance anytime, receive alerts for anomalies like overheating or overcharging, and plan rides based on accurate power levels.
This seamless connectivity keeps SURRON e-bike users in full control, ensuring safe, efficient battery use on every journey.
Riders can check the battery’s health and performance anytime, receive alerts for anomalies like overheating or overcharging, and plan rides based on accurate power levels.
This seamless connectivity keeps SURRON e-bike users in full control, ensuring safe, efficient battery use on every journey.


Power & Smartness
This BOOANT 72V 40Ah battery stands as a benchmark of quality and safety for SURRON e-bikes. Built with premium Samsung 21700 50S cells, it delivers consistent, reliable performance. Its intelligent BMS acts as a robust guardian, monitoring in real-time to prevent overcharging, over-discharging, and overheating, ensuring every ride is powered by both strength and security.
TECH SPECS
Battery Model | 72v 40Ah Battery |
Cell Type | SAMSUNG (50S)21700 5000mAh 3.6V Cell |
Cell OverCharge Protection Voltage | 4.2V/Cell |
Cell Overdischarge Protection Voltage | 2.8V/cell |
Nominal Voltage | 72V |
Rated Capacity | 40Ah |
Energy | 2880WH |
Parallel & Series | 20 Series 8 Paralles 160pcs Cells |
BMS ( Built-in ) | MAX 100A ( Bluetooth ) |
Suitable Motor | 100A BMS Suitable Motor- Less than 72V 6000W(MAX) Motor |
Discharge Cutoff Voltage (V) | 56V+/-0.5V |
Charge Cutoff Voltage (V) | 84V+/-0.5V |
Rated Discharge Current (A) | 40A |
Maximum peak discharge current (A) | 300A |
Maximum Continuous Discharge Current (A) | 100A |
Charger Mode | 110V~240V 50/60HZ 84V 5A |
Charger Time | 8-10 Hours |
Battery Size (mm) | 460mm*185mm*80mm |
Battery Weight | About 11.5Kg |
PACKING LIST


Battery Pack*1 84V 5A Fast Charger*1 AC Power Cord*1 Discharge Extension Cord*1