BAFANG INTUBE batteries are designed to integrate into the bike frame.
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BAFANG INTUBE batteries are designed for pure performance. They combine the latest technologies and years of expertise. BAFANG has developed lightweight, fast-charging, and long-lasting INTUBE batteries.
They offer the highest efficiency level on the market today. The INTUBE range meets all your electrification and conversion project needs.
Numerous Models
With a wide range of options, BAFANG provides solutions to power any type of electric bike. INTUBE batteries also preserve the frame’s aerodynamics. They ensure effective weight distribution and help frame designers maintain a strong aesthetic.
BAFANG INTUBE batteries are perfect for all types of bikes. BAFANG provides the ideal power source for your electric bike.
BAFANG INTUBE Battery: BTF25
This BAFANG BTF25 battery is very compact and lightweight.
It fits into the smallest frame tubes. It provides 820 Wh of power, making it one of the most efficient components on the market.
CAPACITY: 820Wh
WEIGHT: 4.8kg
CHARGE TIME: 4.5h
BAFANG INTUBE Battery: BTF16
This BAFANG BTF16 battery is medium-sized and offers a long lifespan.
It accumulates 460/550 Wh with a very reduced weight of 3.4 kg. It is particularly well-suited for elegant and slim electric bikes often found in city bike ranges.
CAPACITY: 550Wh
WEIGHT: 3.4kg
CHARGE TIME: 6.5h
BAFANG INTUBE Battery: BTF15
This BAFANG BTF15 battery fits into the smallest bike frame tubes. It offers a power reserve of 640 Wh.
It is perfectly suited for trekking electric bikes.
CAPACITY: 640Wh
WEIGHT: 4.8kg
CHARGE TIME: 6.5h
BAFANG INTUBE Battery: BTF14
This BAFANG BTF14 battery offers aerodynamics for fast bikes. It is specially designed for eRoad and eGravel bikes.
It provides 410 Wh of valuable electric energy to meet all cyclist ambitions. It is ideal for climbing Alpine passes or maintaining effort on long sporting rides.
CAPACITY: 410Wh
WEIGHT: 2.65kg
CHARGE TIME: 4.5h
BAFANG INTUBE Battery: BTF09
This BAFANG BTF09 battery maintains the aerodynamics and sleekness of fast eRoad and eGravel bikes.
It provides 410 Wh of electric energy, which is more than sufficient for cyclists wanting to climb Alpine passes or undertake long sporting rides.
CAPACITY: 410Wh
WEIGHT: 2.65kg
CHARGE TIME: 4.5h
BAFANG INTUBE Battery: BTF05
This BAFANG BTF05 battery is ultra-thin. It is perfect for maintaining the aerodynamics of fast eRoad bikes.
It accumulates a capacity of 200 Wh of electric energy for those who want to climb the toughest passes or embark on great and formidable sporting rides.
CAPACITY: 200Wh
WEIGHT: 1.6kg
CHARGE TIME: 2.5h
BAFANG INTUBE Battery: BTF04
This BAFANG BTF04 battery is medium-sized. It offers a long-lasting capacity of 600 Wh for only 3.5 kg of weight.
It is particularly well-suited for elegant or touring electric bikes.
CAPACITY: 600Wh
WEIGHT: 3.5kg
CHARGE TIME: 2.5h
BAFANG Battery: BTF03
This BAFANG BTF03 battery is compact, lightweight, and slim. It fits into very small frame tubes.
It provides a capacity of 450 Wh for elegant electric bikes, children’s bikes, and junior bikes. City bikes are its primary target.
CAPACITY: 450Wh
WEIGHT: 3.0kg
CHARGE TIME: 4.5h
5 Key Facts About the BAFANG INTUBE Battery
- Fully hidden inside the frame: The INTUBE battery slides into the downtube of the frame, completely concealing it from external view for a premium OEM-style finish.
- Maximum protection: Shielded by the frame tube itself, the INTUBE battery is protected from impacts, splashes, and theft attempts far better than any external battery format.
- Optimal weight distribution: Housed in the downtube, the battery sits low and central in the frame, delivering the best possible balance and handling for an e-bike.
- Premium aesthetic: The result is an e-bike that is visually indistinguishable from a high-end factory-built e-bike — clean, professional, and uncluttered.
- 36V and 48V compatibility: Available in both voltages to power BBS01, BBS02, and BBSHD mid-drive motors.
Frequently Asked Questions About the BAFANG INTUBE Battery
What frame is required for a BAFANG INTUBE battery?
An INTUBE battery requires a frame specifically designed or adapted to house an internal battery — typically featuring a downtube with sufficient internal diameter and a removable end cap or access hatch. Standard conversion frames without these features are not compatible. Frames purpose-built for INTUBE batteries are available from specialist suppliers.
How is the BAFANG INTUBE battery removed for charging?
On compatible frames, the INTUBE battery is accessed via a lockable end cap at the bottom of the downtube. The battery slides out using the key, can be carried to a charging point, and slides back in when fully charged. Some setups allow on-frame charging via an accessible port without removing the battery.
Does the INTUBE battery offer enough capacity for long rides?
INTUBE batteries are available in capacities typically ranging from 10Ah to 17.5Ah. A 48V 14Ah INTUBE battery delivers approximately 60 to 100 km of range under normal conditions. The slightly smaller capacity compared to RACK alternatives is offset by the superior integration and aesthetics.
Is the INTUBE battery compatible with all Bafang mid-drive motors?
Yes, the Bafang INTUBE battery in 36V is compatible with the BBS01 and BBS02, while the 48V version is suitable for the BBS02 and BBSHD. The physical connector and voltage must always be matched to your specific motor to ensure safe and correct operation.
Compare with the TUBE battery for frame triangle mounting, the RACK battery for maximum capacity, and the BBSHD motor for the ultimate 48V build.
