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- dafuli01@ebikeserviceparts.com
Thunder DT‑4C finished downtube ebike lithium‑ion battery pack, dimension 407×89×74mm with rear integrated controller box. Built‑in BMS & fuse, key‑lock removable design, LED power indicator. 36V/48V optional for 250‑750W e‑bike motor, ready‑to‑use battery pack.
Thunder DT‑4C is complete pre‑assembled removable downtube lithium‑ion battery pack for electric bicycles. It features a unique rear‑side integrated controller box combined with metal slide mounting plate, you can place your ebike controller inside the rear box to organize wiring and save frame space. It is widely used as original or replacement battery for commuter ebikes, DIY ebike builds, repair shops and wholesale customers.
✅ 36V or 48V electric bicycle system
✅ Fits 250W‑750W hub motor & mid‑drive ebike
✅ Fits frames compatible with Thunder DT‑4C downtube battery mounting dimension
| Parameter | Value |
|---|---|
| Model | Thunder DT‑4C Downtube Battery Pack |
| Overall Dimension | 407 × 89 × 74 mm |
| Shell Material | High‑strength Aluminum Alloy Profile + Durable ABS Plastic End Cap |
| Cell Type | Grade‑A 18650 Lithium‑ion Cell |
| 36V Cell Configuration | 10S4P |
| 48V Cell Configuration | 13S3P |
| Max Capacity | 10.5Ah |
| Fit Motor Power | 250W‑750W |
| Color Option | Matte Silver / Matte Black |
1 × Thunder DT‑4C Pre‑assembled Finished Battery Pack 1 × Metal Slide Rail Mount Plate with rear controller box 2 × Anti‑theft Keys
⚠️ Notice: E‑bike controller and charger are NOT included.
✅ Rear Integrated Controller Box: Exclusive design on mounting slide plate, store ebike controller inside rear compartment, keep wiring neat and release extra frame space.
✅ Grade‑A 18650 Lithium Cells: Stable performance, long cycle life for daily commuter cycling. ✅ Built‑in Full‑Protection BMS & Fuse: Protect battery against over‑charge, over‑discharge, over‑current, short‑circuit and over‑temperature; internal fuse improves circuit safety.
✅ Slide‑in Anti‑theft Mount System: Heavy‑duty metal slide rail fixed on downtube frame. Battery slides into rail and locked by key; easy to remove for indoor charging.
✅ Practical User‑Friendly Design: 5‑LED battery‑level indicator for quick remaining power check; independent DC charge port and discharge terminals.
✅ Ready‑to‑use Finished Pack: Fully assembled battery pack, plug‑and‑play. Matte silver / matte‑black shell optional, custom logo & discharge connector are supported.
Brand: OEM
Product Name: Thunder DT‑4C Downtube Finished E‑bike Lithium‑ion Battery Pack
Shell Material: Aluminum Alloy + ABS Plastic
Dimension: 407 × 89 × 74 mm
Cell: Grade‑A 18650 Li‑ion Nominal
Voltage: 36V / 48V
Max Capacity:10.5Ah
Applicable Motor: 250W‑750W ebike motor
BMS: Built‑in multi‑protection BMS with fuse
Color: Matte Silver / Matte Black
Package Content: Finished battery pack, mount plate, 2 anti‑theft keys
Not Included: Charger, ebike controller
Please confirm your ebike downtube mounting cavity dimension and system voltage before ordering to avoid incompatibility.
Minor color difference may exist due to light environment and screen display.
Allow measurement tolerance ±1‑3mm for manual measurement.
Only Thunder DT‑4C finished battery pack, mounting plate and keys are included. Charger and ebike controller are sold separately.
Ideal replacement battery for ebike repair workshops, DIY ebike builders and ebike wholesale buyers. Plug‑and‑play lithium‑ion battery for many 36V &48V commuter electric bicycles.
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
It used to take me weeks to hunt down hard‑to‑find e‑bike spare parts. Their compatibility‑check technical support saved me countless repair headaches. Reliable supplier I can always count on.
For more FAQs and further details, please get in touch with us
We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
We provide part identification, model matching and full order follow-up support.
