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Reention Polly DP-2170-5C DP-5C down tube ebike lithium battery, 36V/48V/52V 10-20Ah, optional 21700 or 18650 cells, built-in controller box, multiple plugs, ideal for ebike conversion kits.
Reention Polly DP-2170-5C (DP-5C) is classic down tube style lithium battery pack for electric bicycles and ebike conversion kits. It supports two cell options: 21700 cells or 18650 cells, maximum capacity up to 36V25Ah / 48V20Ah, voltage optional in 36V,48V,52V, capacity range 20Ah-25Ah for different riding range demands.
This DP5C battery housing reserves built-in controller box space, which can fit 9 mosfets controller PCB. Equipped with safe lock to fix battery firmly on bike frame, 4 LED lights battery level indicator for real-time remaining power check. Charging port is DC2.1, optional 3Pin high current port; standard 4Pin discharge port, we support custom different discharge plugs including XT60, XT90, Anderson, bullet connectors, Deans connector etc.
Optional USB port, power switch available. Certified with MSDS & UN38.3. Widely used for fat tire e-bikes, ebike DIY rebuild and ebike conversion kits.
✅ Electric Bicycle / Fat Tire Ebike
✅ Ebike Conversion Kits
✅ DIY E-bike Rebuild & Replacement Power
| Parameter | Specification |
|---|---|
| Model | DP-2170-5C (DP-5C) / Reention Polly |
| Battery Type | Lithium Ion Battery Pack |
| Cell Option | 21700 / 18650 (2 types optional) |
| Nominal Voltage | 36V / 48V / 52V |
| Capacity | Max 36V25Ah / 48V20Ah |
| Charging Port | DC2.1, Optional 3Pin high current |
| Discharge Port | 4Pin, custom plugs available |
| LED indicator | 4 LED battery level lights |
| USB port | Optional with / without |
| Power switch | Optional with / without |
| Controller Box | With, can hold 9 mosfets controller PCB |
| Dimension L×W×H | 368×95×125 mm |
| Optional Accessories | base block, latch, spring lock, keys |
| Certifications | MSDS / UN38.3 |
1 × Reention Polly DP-2170-5C Battery Pack 1 × Fixing Plate 2 × Lock Keys *Optional: Charger, XT60 / XT90 / Anderson adapter cable (sold separately)
✅ Dual Cell Choice: Choose between 21700 or 18650 cells, flexible capacity up to 48V20Ah for long-distance riding.
✅ Built-in Controller Box: Special housing design reserves space to install 9-mosfet controller PCB, perfect for ebike conversion kits.
✅ Safe Lock Design: Security key lock firmly fastens battery on bike down tube, prevent battery theft.
✅ 4 LED Power Indicator: One press to check remaining battery level conveniently.
✅ Multiple Connector Customization: Support XT60, XT90, big/small Anderson, bullet, Deans connectors to match different ebike controllers.
✅ Multiple Voltage & Capacity: 36V/48V/52V optional, capacity 10-20Ah, satisfy different power & mileage requirement.
✅ Reliable Transport Certification: MSDS & UN38.3 certified for global shipping.
Please confirm voltage, capacity and discharge connector type before order to avoid mismatching your ebike controller. Custom connectors, USB port and power switch are available for bulk wholesale orders. This is Reention Polly DP5C style down tube battery, great replacement battery for DIY ebike, repair shops and distributors.
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.
