Premium 48V / 52V Folding E-Bike Replacement Battery
Aleaivy DCH-009 Premium 48V / 52V Folding E-Bike Replacement Battery (17.5Ah | Engwe EP-2 Pro & MATE X Compatible | 2A Charger Included)
Unlock longer riding distance and steady motor output with the Aleaivy DCH-009 Upgraded Folding E-Bike Battery Pack. Specially designed for internal frame fitment in popular folding fat-tire e-bikes—including the Engwe EP-2 Pro, Engwe Engine Pro, and MATE X—this premium replacement battery features high-density lithium-ion cells housed in a slim $420 \times 115 \times 58\text{ mm}$ aluminum casing. Available in both 48V and 52V configurations with capacities up to 17.5Ah ($840\text{Wh} - 910\text{Wh}$), every pack comes complete with a matching 2A Smart Fast Charger.
⚠️ Key Performance & Safety Guidelines
IMPORTANT VEHICLE & BATTERY SPECIFICATIONS:
Standard DCH-009 Form Factor: Precision-engineered $420\text{ mm} \times 115\text{ mm} \times 58\text{ mm}$ casing dimensions for seamless insertion into folding bike main-frame tubes.
Broad Compatibility: Direct replacement or backup battery for Engwe EP-2 Pro, Engine Pro, MATE X, and similar folding fat-tire models using DCH-009 style cases.
52V Upgrade Capability: Select the 52V version for reduced voltage sag under heavy loads, improved climbing torque, and snappier throttle response.
Complete Charger Bundle: Includes a dedicated 2A AC smart charger with automatic cutoff protection against overcharging.
🚀 Key High-Performance Features
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High-Capacity 17.5Ah Cell Configuration: Delivers high energy density ($840\text{Wh}$ at 48V / $910\text{Wh}$ at 52V) to extend your riding range on long commutes and gravel trails.
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Integrated Key Lock & Folding Handle: Foldable top handle allows easy extraction from the bike frame, while the physical key-lock system prevents theft when parked.
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Advanced Battery Management System (BMS): Protects against overcharging, over-discharge, short-circuiting, overcurrent, and temperature spikes.
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Durable Alloy Casing: Heat-dissipating aluminum shell protects cells against trail vibration, impacts, and weather exposure.
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External Charging Port & Power Switch: Charge the battery inside the bike frame or easily unlock and remove it for off-bike desktop charging.
📊 Technical Specifications Matrix
| Specification Parameter | Aleaivy DCH-009 Battery Specifications |
| Brand & Model Line | Aleaivy Folding Series (DCH-009 / NLK009) |
| Compatible Bike Models | Engwe EP-2 Pro, Engine Pro, MATE X & DCH-009 Compatible Frames |
| Physical Dimensions | $420\text{ mm} \times 115\text{ mm} \times 58\text{ mm}$ ($16.5" \times 4.5" \times 2.3"$) |
| System Voltage Options | 48V Nominal / 52V High-Output |
| Capacity Options | 13Ah / 16Ah / 17Ah / 17.5Ah ($840\text{Wh} - 910\text{Wh}$ Max) |
| Cell Chemistry & Type | High-Density Lithium-Ion (Li-Ion) |
| Protection System | Smart BMS (Overcharge, Short-Circuit, Over-Current) |
| Included Charging Unit | Matching 2A AC Smart Charger Included |
| Primary Application | Folding Electric Bike / Replacement Battery Pack |
📋 Ideal Applications
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Engwe EP-2 Pro & MATE X Upgrades: Direct drop-in replacement for degraded or aging factory batteries on popular folding e-bikes.
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Extended Range Riding: Keep a second DCH-009 battery charged in your vehicle or pannier to swap mid-ride and double your travel distance.
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52V Performance Tuning: Upgrade from 48V to 52V on compatible controllers for improved high-speed torque and overall punch.
📦 Package Contents
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1 x Aleaivy DCH-009 Folding E-Bike Lithium-Ion Battery Pack (48V or 52V / Up to 17.5Ah)
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1 x 2A AC Smart Battery Charger
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2 x Frame Security Keys
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1 x User Care Guide

The product is compatible with the following electric bikes:
MATE X bike
Engwe Engine Pro (16Ah Version) and Ep - 2 Pro(13Ah Version)
Engwe Engine X (both 13Ah Version and 16Ah Version)
CMACEWHEEL RX20
Bezior XF200/ X Plus, etc.
Important Notice for Engwe Engine Pro, Engwe ep - 2, Engwe ep - 2 pro, and BEZIOR XF200 E - bikes:
Older models of these e - bikes are equipped with the DCH - 006 battery, which has dimensions of (430x103x430mm) and is relatively thinner.
Newer models use the DCH - 009 battery, with dimensions of (420x115x58mm), a fatter battery.
The item currently linked is the DCH - 009 battery. If you are uncertain about the version of your e - bike or which battery is suitable for it, please send us pictures of your existing battery. Our team will assist you in determining the correct choice.
Compatible Ebike brands:
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Tesgo |
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Ginghma |
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Cmaceweel |
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Bezior X |
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Engwe |
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Engwe |
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RIDSTAR |
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RIDSTAR |
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Viribus |
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ENGWE |
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MATE X |
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Lankeleisi |
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Lankeleisi |
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Cyrusher |
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2023 new |
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G-REX |
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BURCHDA |
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Polarna |
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Polarna |
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Yamee |
!!!Attention:




Product Information:
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NLK foldable electric bicycle battery parameter table
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Nominal Voltage:
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48V 52V(Optional voltage)
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Nominal Capacity:
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13Ah 16Ah 17Ah 17.5Ah (Customized capacity)
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BMS:
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20A-30A (350W to 1000W motor use)
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BMS Function:
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Over-Current, Over-Discharge, Over-Charge,
Short-Circuit Protection, Balance Act.
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Size:
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It is up to your battery needs
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Discharge Cut-Off Voltage:
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upon request(Please consult customer service)
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Charge Voltage:
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upon request(Please consult customer service)
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Cycle Life:
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80% capacity after 800 cycles
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Battery Type:
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LI(NiCoMn)O2 18650
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Batteries:
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Brand 18650 cells
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Warranty:
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12 months
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Weight:
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as required
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Charging Working Temperature:
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0~45°C
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Discharge Working Temperature:
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-20~60°C
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Storage Temperature:
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-10~40°C
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Q: What is the difference between a Li-ion battery, a Ni-Mn battery, and a lead-acid battery?
A: Charge Temperature: 0 to 45°C and Discharge Temperature: -20 to 65°C
Q: What kind of cells are used in this electric bicycle battery?
A: Different capacities with different cells. We make the battery with original A-grade brands and high-quality domestic cells; all can be customized as per your requests.
A: All of our e-bike batteries come with a charger. We have a normal charger and a fast charger. If you need a fast charger, please contact us.
Q: Do your electric bike batteries come with BMS?
A: Yes, our batteries have a SEIKO IC BMS, with stable performance. This can protect the battery and avoid short circuits, overcharging, over-discharging, and overcurrent.
Q: Can you provide OEM and ODM service?
A: Yes, we are a professional electric bike battery manufacturer with a factory, which produces all kinds of high-quality E-bike lithium batteries according to customers' requirements and designs. You are welcome to place OEM and ODM orders and visit our factory.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.