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- dafuli01@ebikeserviceparts.com
Reention EEL MINI / EEL PRO inframe ebike lithium battery, 36V & 48V optional, 10.4Ah‑17.5Ah capacity options. Integrated down‑tube design, anti‑theft lock, DC2.1 charge & 6Pin discharge port, LED indicator, replacement battery for city e‑bikes Xiaomi Himo C20
This Reention EEL series includes EEL MINI and EEL PRO two variants of in‑frame down‑tube lithium batteries, specially engineered for integrated city electric bicycles. Powered by 18650 cells, both 36V and 48V voltage are available for customization with multiple capacity selections. Equipped with anti‑theft security lock, LED power indicator, DC2.1 charging port and 6Pin discharge port. It delivers stable power output for daily urban commuting and works as ideal replacement battery for models like HIMO C20.
✅ Integrated down‑tube city electric bicycle
✅ HIMO C20 E‑bike
✅ 36V / 48V in‑frame ebike projects & replacement rebuild
| Parameter | Value |
|---|---|
| Series Model | Reention EEL MINI / EEL PRO |
| Battery Structure | In‑Frame Down‑Tube Integrated Battery |
| Cell Type | 18650 Lithium‑ion Cell |
| Nominal Voltage | 36V / 48V Optional |
| EEL MINI Max Cells | 40 pcs |
| EEL MINI Available Capacity | 36V:10.4Ah / 10.5Ah / 12.8Ah /14Ah；48V: Custom capacity |
| EEL MINI L1/L2 Size | 365 mm / 430 mm |
| EEL MINI Cross‑section | 64 mm × 74 mm |
| EEL PRO Max Cells | 52 pcs |
| EEL PRO Max Capacity | 36V 17.5Ah；48V Custom capacity |
| EEL PRO L1/L2 Size | 420 mm / 424 mm |
| EEL PRO Cross‑section | 64 mm × 84 mm |
| Charging Port | DC2.1 |
| Discharging Port | 6Pin |
| Indicator | LED Power Indicator |
| Security Lock | Anti‑theft lock included |
| USB Port | Without |
| Power Switch | Without |
1 × Reention EEL MINI or EEL PRO In‑Frame Ebike Lithium Battery Pack
✅ Slim In‑Frame Design: Perfectly embedded inside ebike down‑tube, keeps neat original frame appearance for city e‑bikes.
✅ Two Model Options: EEL MINI for mid‑range capacity; EEL PRO for high‑capacity requirement.
✅ Dual Voltage Customization: Support both 36V and 48V voltage, multiple capacity choices to satisfy different riding‑range demands.
✅ Complete Hardware Configuration: Built‑in anti‑theft security lock for theft prevention and convenient battery removal.
✅ Standard Port Matching: DC2.1 charging port and 6Pin discharge port, matches most original integrated ebike wiring harness.
✅ Visible LED Power Indicator: Quick real‑time battery level check for daily riding.
Brand: REENTION
Product Name: EEL MINI / EEL PRO In‑Frame Down‑Tube Lithium Battery
Battery Type: Lithium‑ion
Battery Cell: 18650
Nominal Voltage: 36V / 48V Optional
Capacity: 10.4Ah,10.5Ah,12.8Ah,14Ah,17.5Ah, custom capacity for 48V
Charging Port: DC2.1
Discharging Port: 6Pin
Indicator: LED Power Indicator
Security Lock: Anti‑theft lock
USB Port: Not included
Power Switch: Not included
Application: City ebike, in‑frame ebike replacement, OEM ebike assembly
Color: As shown in the picture
Please verify your ebike frame cavity dimension, working voltage, connector pin definition before placing your order to prevent incompatibility. 48V version supports custom capacity, please contact us for detailed specification.
Minor color differences may appear due to lighting conditions and screen display variations.
Allow measurement tolerance of ±2‑5 mm.
Only the listed lithium battery pack is included; charger, cables and other accessories shown in reference images are not part of the package.
Great choice for ebike repair stores, DIY rebuilders and ebike wholesale distributors. Bulk OEM & custom voltage order service is available.
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.
