The most important part of an electric bike isn’t the motor or the controller—
it’s the battery.
Your battery determines range, safety, power output, lifespan, weight, and even the riding experience.
But with so many options—48V, 52V, 36V, Hailong, rear rack, down-tube, NCM, LiFePO4—many buyers are unsure how to choose the correct one.
This guide will help you quickly and confidently choose the best battery for your e-bike with low risk and maximum compatibility.
A battery is not “the bigger the better.”
It must match your motor and controller.
Common voltage options:
36V – For small motors (250W–350W)
48V – Most popular for 500W–1000W bikes
52V – Performance version compatible with some 48V controllers
60V+ – High-power electric motorcycles
If the voltage doesn’t match:
Lower voltage → weak power or won’t start
Higher voltage → controller protection, alarm, or damage
➡ Always choose the same voltage as your original battery.
Capacity determines how far you can ride on one charge.
10Ah–13Ah: Short commuting (20–35km / 12–20 miles)
15Ah–17.5Ah: Medium-distance (40–55km / 25–35 miles)
20Ah+: Long range (60–100km / 37–62 miles)
| Usage Scenario | Suggested Capacity |
|---|---|
| Daily commute 10–20 km | 13–15Ah |
| Delivery riders | 17.5Ah–20Ah+ |
| Mountain/off-road | ≥ 20Ah |
| Casual riding | 10–13Ah |
Pros:
Higher energy density (lighter, smaller)
Better range
More power output
Cons:
Shorter cycle life than LiFePO4
Best for:
E-bikes, mountain bikes, commuting, long range
Pros:
Highest safety
Extremely long cycle life
Cons:
Heavier and larger
Best for:
Delivery bikes, cargo bikes, tricycles, long-life applications
➡ For lightweight and long range → Choose NCM
➡ For maximum safety and long lifespan → Choose LiFePO4
Each bike model uses different battery housings. Common types:
Mounted on the downtube
Popular for 13Ah–20Ah packs
Fits most DIY or aftermarket builds
Used on city/commuter bikes
Larger capacity
Good for riders who don't remove the battery often
Built into the frame
Requires exact size matching
Extra-large capacity
Ideal for off-road or high-power builds
➡ Always confirm dimensions to make sure the battery fits your frame.
The core of any battery is the cell quality.
Top battery cell brands include:
Samsung
LG
Panasonic
EVE
Lishen
BAK
Avoid batteries with unbranded or unspecified cells.
The BMS controls charging, discharging, balance, and safety.
Important BMS functions:
Overcharge protection
Over-discharge protection
Overcurrent protection
Cell balancing
350W–500W motor → 15A–20A BMS
750W motor → 20A–25A BMS
1000W motor → 30A BMS
High-power off-road → 40A+
If the BMS current is too low, the bike will lose power or cut off during acceleration.
A good battery should have the proper certifications:
UN38.3
MSDS
CE / RoHS
IEC62133
UL (for North America)
At least 12 months warranty
Fast after-sales support
Customization options for B2B buyers
Stable cells and low failure rate across bulk orders
B2B buyers care most about:
✔ Batch consistency
✔ Low defect/return rate
✔ Transport safety
✔ Cycle life
B2C buyers care most about:
✔ Range
✔ Safety
✔ Compatibility
✔ Weight
✔ Brand
Voltage cannot be changed casually.
More Ah = more range.
Hailong / Rear Rack / Triangle / Integrated
The most important part of an electric bike isn’t the motor or the controller—
it’s the battery.
Your battery determines range, safety, power output, lifespan, weight, and even the riding experience.
But with so many options—48V, 52V, 36V, Hailong, rear rack, down-tube, NCM, LiFePO4—many buyers are unsure how to choose the correct one.
This guide will help you quickly and confidently choose the best battery for your e-bike with low risk and maximum compatibility.
A battery is not “the bigger the better.”
It must match your motor and controller.
Common voltage options:
36V – For small motors (250W–350W)
48V – Most popular for 500W–1000W bikes
52V – Performance version compatible with some 48V controllers
60V+ – High-power electric motorcycles
If the voltage doesn’t match:
Lower voltage → weak power or won’t start
Higher voltage → controller protection, alarm, or damage
➡ Always choose the same voltage as your original battery.
Capacity determines how far you can ride on one charge.
10Ah–13Ah: Short commuting (20–35km / 12–20 miles)
15Ah–17.5Ah: Medium-distance (40–55km / 25–35 miles)
20Ah+: Long range (60–100km / 37–62 miles)
| Usage Scenario | Suggested Capacity |
|---|---|
| Daily commute 10–20 km | 13–15Ah |
| Delivery riders | 17.5Ah–20Ah+ |
| Mountain/off-road | ≥ 20Ah |
| Casual riding | 10–13Ah |
Pros:
Higher energy density (lighter, smaller)
Better range
More power output
Cons:
Shorter cycle life than LiFePO4
Best for:
E-bikes, mountain bikes, commuting, long range
Pros:
Highest safety
Extremely long cycle life
Cons:
Heavier and larger
Best for:
Delivery bikes, cargo bikes, tricycles, long-life applications
➡ For lightweight and long range → Choose NCM
➡ For maximum safety and long lifespan → Choose LiFePO4
Each bike model uses different battery housings. Common types:
Mounted on the downtube
Popular for 13Ah–20Ah packs
Fits most DIY or aftermarket builds
Used on city/commuter bikes
Larger capacity
Good for riders who don't remove the battery often
Built into the frame
Requires exact size matching
Extra-large capacity
Ideal for off-road or high-power builds
➡ Always confirm dimensions to make sure the battery fits your frame.
The core of any battery is the cell quality.
Top battery cell brands include:
Samsung
LG
Panasonic
EVE
Lishen
BAK
Avoid batteries with unbranded or unspecified cells.
The BMS controls charging, discharging, balance, and safety.
Important BMS functions:
Overcharge protection
Over-discharge protection
Overcurrent protection
Cell balancing
350W–500W motor → 15A–20A BMS
750W motor → 20A–25A BMS
1000W motor → 30A BMS
High-power off-road → 40A+
If the BMS current is too low, the bike will lose power or cut off during acceleration.
A good battery should have the proper certifications:
UN38.3
MSDS
CE / RoHS
IEC62133
UL (for North America)
At least 12 months warranty
Fast after-sales support
Customization options for B2B buyers
Stable cells and low failure rate across bulk orders
B2B buyers care most about:
✔ Batch consistency
✔ Low defect/return rate
✔ Transport safety
✔ Cycle life
B2C buyers care most about:
✔ Range
✔ Safety
✔ Compatibility
✔ Weight
✔ Brand
Voltage cannot be changed casually.
More Ah = more range.
Hailong / Rear Rack / Triangle / Integrated
