Down Tube 17.5ah 19.2ah 20ah 48v ebike battery for 1000w 1500w 2000w motor ebike ship from US UK EU

Ship from US, UK, DE and Free Shipping
3.647,00 NOK
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1, Made of Samsung 50E, LG5000 or LG5200mAh Li-on cell.
2, Motor work with: Work with 1500W -2000W motor.
3, Size: 385x120x97mm.
4, Connector: The battery comes with XT-60 connector.
5, The battery has an LED display to show the usage power in time. And it comes with a matching charger, Its indicator light can tell the status of battery charging. Red light indicates it is charging and green light indicates finished charging.
6. Integrated USB charging port which enable you to charge your phone while riding. The battery comes with a safety locks & switches which can be firmly fixed to the bicycle and prevent from being lost.
7, 1000-1500 life cycles. We implemented a strict high quality management policy: every lithium battery has passed the QC appearance and function test before shipment. The ebike battery charge cycle exceeds 1000-1500 times.
8, Safety & Convenient: Hight quality electric cells and built-in a 40A-50A BMS protective plate, prevent over charge, over discharge, over current and short circuit and ensure the long life expectancy.
9, This battery is located in US, UK, EU warehouse, it is free shipping and can be shipped to the above places only. If you are from the above places and cannot buy it, normally it is because the battery you choose is sold out in your location's warehouse, you can choose other battery instead.

Type of Battery cell and Capacity(Amperage)
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Frequently Bought Together

About This Item

Voltage: 48V 52V ;         
Battery Capacity: 15A, 17.5A, 19.2A, 20AH   ;        
Battery Type:  Lithium Ion (Li-Ion), Down Tube  ;       
Charging Time:  5-9 hours ;        
Item Condition: New

Components Included: 
1 x Battery | 1 x Charger

Description

FAQs

Shipment & Delivery

Reviews

48V Frame Downtube E-Bike Battery Pack (1000W–2000W Motors)

Product Overview

The 48V Frame Downtube E-Bike Battery Pack is a high-performance lithium-ion power unit engineered for high-drain electric bicycles, commuter e-bikes, and conversion kits running 1000W, 1500W, and 2000W motors. Available in 15Ah, 20Ah, and 20.8Ah capacity options, this frame-downtube battery series features premium tier cell selections, including Samsung 50E cells, high-density LG 5000mAh cells, and ultra-high capacity LG 5200mAh cells. Equipped with an industrial-grade 40A or 50A continuous BMS (supporting peak instantaneous discharge ratings of 80A or 100A), it delivers steady power, minimal thermal buildup, multi-point safety test compliance, and an exceptional service lifespan of up to 2,000 charge cycles.

Fast Regional Delivery: Stocked and dispatched directly from local third-party logistics warehouses in the US, UK, and Germany with fast 3–5 business days delivery.

Technical Specifications

Feature Technical Parameter
Nominal Voltage 48V System
Compatible Motor Output 1000W | 1500W | 2000W Motors
Case Form Factor Standard Bicycle Frame Downtube Mount
Warehouse Fulfillment US, UK, and Germany Warehouses
Delivery Time 3–5 Business Days Fast Regional Shipping
Warranty & Support 1-Year Quality Warranty + Lifetime Technical Support
Safety Testing & Quality Short Circuit √ | Overcharge √ | Crush Safety √ | Extrusion Safety √
Battery Cell Options

• Samsung 50E Cell (High Power & Longevity)


• LG 5000mAh Cell (High Density, 3C Discharge)


• LG 5200mAh Cell (Ultra-High Capacity, 3C Discharge)

Nominal Capacity Options 15Ah | 20Ah | 20.8Ah
Cell Combinations 4x13 | 5x13
BMS Continuous Discharge Current 40A or 50A
BMS Max Instantaneous Current 80A or 100A
Internal Resistance 105 mΩ
Charging Cut-Off Voltage 54.6V
Discharge End-Off Voltage 12V
BMS Rated Charging Current 10A
Max Discharging Current Amperage 10A
Charging Method CC / CV (Constant Current / Constant Voltage)
Battery Life / Cycle Count

Samsung 35E / 50E: >2,000 Charge Cycles


LG 5000mAh / 5200mAh: >1,000 Charge Cycles

Operating Temperatures

Charge: 0°C to 50°C (32°F to 122°F)


Discharge: -20°C to 50°C (-4°F to 122°F)

Key Features & Performance Highlights

  • Fast 3–5 Day Regional Shipping: Dispatched locally from dedicated third-party logistics warehouses in the United States, United Kingdom, and Germany, providing fast 3 to 5 business day order fulfillment.

  • 1000W–2000W Power Delivery: Features an internal 40A/50A continuous BMS (80A/100A peak instantaneous discharge) designed to feed power to hungry 1000W, 1500W, and 2000W electric bicycle motors without thermal throttling or voltage sag.

  • Premium Samsung & LG Lithium Cells: Select between ultra-durable Samsung cells offering up to 2,000+ lifecycle charges or high-density LG 5000mAh / LG 5200mAh cells (3C discharge rate) for max energy capacity in a compact downtube shape.

  • Four-Point Safety Certification: Rigorously tested and verified across four core safety protocols: Short Circuit Safety Test (√), Overcharge Safety Test (√), Crush Safety Test (√), and Extrusion Safety Test (√).

  • Integrated BMS Circuit Protection: Shielded against over-charging, over-discharging, thermal spikes, internal shorts, and heavy current drains.

  • 1-Year Warranty & Lifetime Support: Backed by a full 1-year quality warranty and lifetime technical customer support.

Package Contents

  • 1x 48V Downtube E-Bike Battery Pack (Selected Capacity & Cell Option)

  • 1x Quick-Release Frame Mounting Rail Plate with Security Keys

  • 1x Battery Charger

  • 1x User Manual

Frequently Asked Questions (FAQ)

Q: How fast will I receive my 48V downtube e-bike battery?

A: Orders ship directly from regional third-party logistics warehouses in the US, UK, and Germany. Standard regional delivery takes 3 to 5 business days.

Q: What is the full charge cut-off voltage for this 48V battery?

A: The full charge cut-off voltage is 54.6V, charging safely via the CC/CV (Constant Current / Constant Voltage) method.

Q: What size motor is compatible with this 48V downtube battery?

A: Backed by a high-discharge 40A or 50A continuous BMS (80A/100A peak), this battery is optimized for electric bike motors rated for 1000W, 1500W, and 2000W.

Q: What battery cells are available, and how long do they last?

A: You can choose between Samsung 50E cells (rated for over 2,000 charge/discharge cycles) or premium LG 5000mAh / LG 5200mAh cells (rated for over 1,000 charge/discharge cycles).

Q: What safety testing certifications has this battery passed?

A: Every battery pack passes four strict quality and safety tests: Short Circuit Safety Testing, Overcharge Safety Testing, Crush Safety Testing, and Extrusion Safety Testing.

 

 

 

About Us

1, Our battery factory is a professional lithium Ion manufacturer, all of our batteries new from factory directly or within 3 month oversea stock (US, UK, DE, FR).

2, Certifications: All of our batteries have UL, ROHS, MSDS, UN38.3 safety certifications

3, Safety Tests: Short Circuit Safety Test √ Overcharge SafetyTest√ Crush Safety Test Needing Safety Test √ Explosion Safety Test√

4, Warranty:  One year quality warranty and lifetime technical support. We has been in long-term cooperation with  Samsung, LG, Sanyo, All new UPP batteries enjoy a 1-year warranty. We have technical team based in US offers the best customer support if you have requirements for other different modes and capacities, please contact us and we can customize item for you.

5, Note before order: Our battery can fit most motor kits , but exclude these four : Bosch, SHIMANO, Yamaha,Panasonic .

 

We are Authorized Distributor of Unit Pack Power ebike batteries, please check here for the certificates of authorization.

 

Packing list of 48v ebike battery


Down Tube eBike Battery Size

48v electric battery

The Picture below demonstrates how a standard frame downtube e-bike battery rail is mounted and secured onto a bike frame:

Installation

Frequently Asked Questions

Welcome to our FAQ page, where you can find answers to the most commonly asked 

questions about our company, products/services, policies, and more

1. General Questions

A. General Questions

What is your return policy?

We want you to be completely satisfied with your purchase, so we accept returns on all items within 14 days of the purchase date. To start a return, please visit our Returns page and follow the instructions.

How do I track my order?

Once your order has shipped, you will receive a tracking number via email. You can use this number to track your order on our website or on the carrier's website.

Can I cancel or modify my order?

We try to process orders as quickly as possible, but if you need to modify or cancel your order, please contact our customer service team as soon as possible. We'll do our best to accommodate your request.

How long is the delivery

Normally the delivery is from 3-15 business days. Different product's delivery is different. You can see how long you will receive the item on the product page and also the checkout page. And the delivery of some certain items for example the assembled stealth bomber ebike is longer because it is shipped by sea due to the heavy weight and bulky package, the delivery takes about 35-45 business days. 

B. Returns and Warranty

Returns Policy

If you are not completely satisfied with theebikemotorkit purchase for any reason, theebikemotorkit welcomes you to return new for a full refund to your original method of payment if returned within 14 days of purchase, in most cases. In order to complete the return, you must have a proof of purchase and contact us before your return. For return details, please check our refund and warranty policy.

warranty

We have 1-year standard warranty for all batteries and motors(Including the batteries and motor in the Ebike). For controller, LCD or TFT display, it is 6-months warranty if you provide us the video to show the problems. The warranty does not cover the easy wore-out parts (for example throttle, brake lever, tire, cable, headlight, bicycle seat). For details, please check our refund and warranty policy.
Normally we always like to provide the technical service and advice after your purchase as long as you provide us videos to show the problems. So after your purchase, if there is some problem, don't be hestitated to contact us. we can always give you some advise.

2. Products/Services Questions

A. Finding Products

Search for Products

Know exactly what you want? Or perhaps you're just searching for a ebike kit? Use our comprehensive Search box located in the upper right corner of our site to find the exact product you need, or browse through the collection under the catalogue colum. You can be as broad as "ebike kit", "ebike battery", "ebike" or as specific as "48V2000W electric bike kit."

How to select a perfect product

Don't know what ebike kit, battery or ebike you want to buy among the wide range of selection? First, do you have a budge? if you do, stay with a budge to select within the budge range. Second, know what's your reqest for an ebike, for example, the speed, power, and driving range;  3, if you have a bike and want to buy ebike kit to convert your bike to be electric bicycle. then you need to measure your bike's wheel size and dropout.
For more information to help, please read our blog "What you need to consider when to buy an Electric Bike Kit"

How do i know the ebike conversion kit can be installed on my bike or not

To check if your bike can be installed with our ebike kit or not, you need to measure two sizes: 1, the wheel size of your bike; 2, the dropout of your bike. with this two sizes to check the ebike kit can be installled on your bike or not. Regarding how to measure the wheel size and dropout, please check our blog How to measure the wheel size and dropout of A bike  

Product Information

After you have found the perfect product, you can read the features and specification on each product detail page. The information is located beneath the product details. All the available wheel size, power, and amperage are listed on the option column for you to choose.

Product Availability & Out of Stock Products

Theebikemotorkit carries hundreds of SKUs for ebike kits, batteries and ebikes. Occasionally, an item may be temporarily out of stock. You can check the stock availablitiy by selecting your location, for example, If you are in US, You can choose your location to be United States(it is on  the upper right corner box). And you can also send us emails to ask us the availabilities of certain SKU.

B. Technical services

How to install

Normally we list on our installation guide video on thee product page. And you can also go to the help videos under the blogs to check the installation guide vidoe.

Trouble Shooting

We always provide technical service after your purchase as long as you provide us the videos to show the problems. And for some normal trouble during your usage, you can check our trouble shooting blog to ge your answer too.

3. Account Questions

Account registration, sign in, password & linked accounts

Resetting Your Password

If you have forgotten your password, click the "Forgot password?" link on the Sign In screen. Enter your email address, and we will send you a link to reset your password.

Changing Your Login Email Address or Password

You can change your account email address and password on the Account Information page. All your email subscriptions and order confirmations will be sent to your new email address.

4. Contact Questions

Call us

+86-18588534856
Representatives are available: 
MON-FRI: 9am to 6pm BJT 
SAT-SUN: 10am to 5pm BJT

Chat with us

Representatives are available: MON-SUN: 9am - 6pm BJT

Shipment & Delivery

We normally ship it from China, US, UK or Germany warehouse by FEDEX, UPS, DPD, DHL, GLS, POST or other international express. 

1, Ship it from US, UK and Germany warehouse

When you can receive your order: Order Handling Time + Delivery Time. If we have stock in US, UK or Germany warehouse, we ship it from US warehouse to US buyers, from UK warehouse to UK buyers, from Germany warehouse to Europe Union buyers. The delivery normally takes about 1-5 business days. The shipping cost to these three areas (US, UK and Europe Union) is free. To the other countries, you can check the shipping cost at checkout. No import tax from Germany to Europe Union countries.

 Shipping from US, UK and Germany Warehouse
 Destination Order Handling Time(Business day) Delivery (Business Days)

Shipping Methods

Shipping Fee

Import
Tax

US, UK, Germany 1-2 1-5 DPD, UPS, DHL, Evri, GLS, Post or FEDEX etc., Free None
Norway, Switzerland and EU, please check EU
countries list below
1-2 3-5


DPD, UPS, DHL, Evri, GLS, Post or FEDEX, etc.,


Free None



EU countries list: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden 


2, Ship it from China

When you can receive your order: Order Handling Time + Delivery Time. For the orders which ship from China, We need some days to prepare your order especially the stealth bomber ebike. The order handling time is about 2-7 business days. Please check the shipping fee, handling time, delivery and import tax details in the following tables.

 Ship from China to US, UK, Australia, Canada, Germany, EU, and some Asia countries, please check the EU and Asia countries lists below
 Package

Shipping

Fee

Order Handling Time (Business Day)

Delivery (Business Day)

Shipping Methods

Import 

Tax

small package

(1-7.9kgs)

Free 2-3 10-5 FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc.,

Yes, if you

are asked

to pay

8kgs<package

<80kgs

Free 2-4 10-15 or 30-35 By air or by sea from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc., for delivery none

Stealth Bomber

Ebike & Front Wheel

Free 5-7 35-45 By sea from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD, GLS, Post or Evri, etc., for delivery none
Battery Free 3-7 12-18 By air from China to US, EU, UK, CA or AU,  by FEDEX, UPS, DHL, DPD or Evri, etc., for delivery none

 

EU countries list: Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain and Sweden

Some Asia countries list: Japan, Malaysia, Philippines, South Korea, Thailand, Vietnam


Ship from China to United Arab Emirates 
 Package

Shipping

Fee

Order Handling Time (Business Day)

Delivery (Business Day)

Shipping Methods

Import 

Tax

small package

(1-7.9kgs)

Free 2-3 10-15 Special airline from China to UAE

Yes, if you

are asked

to pay

8kgs<package

<40kgs

Calculated at checkout 2-4 10-15  Special airline from China to UAE

Yes, if you

are asked

to pay, normally no

Stealth Bomber

Ebike, Front Wheel & Electric Wheelchair attachment 

Free 5-7 35-45 By sea from China to UAE, then ship it by local delivery company in UAE none
Battery Free 3-7 12-18 Special airline from China to UAE none

 


 Shipping from China to Norway, Switzerland, New Zealand, Mexico, Argentina & Brazil
 package

Shipping

Fee

Order Handling Time (Business Day)

Delivery

(Business

Day)

 Shipping Methods

Import

Tax

small package

(1-5.5kgs)

Free

2-3

10-13

FEDEX, UPS, DHL, etc.,

Yes, if you are asked to pay

6kgs<package

<80kgs

Free 2-4 10-13 FEDEX, UPS, DHL, etc., Yes, if you are asked to pay


Battery
Free 3-5 12-15 FEDEX, UPS, DHL, etc., Yes, if you are asked to pay

 Stealth Bomber

Ebike

We cannot ship this bike to these countries, but the DIY parts package for stealth bomber ebike can be shipped to these countries, the shipping rate and delivery are same to 6kgs<package<80kgs

  


 Shipping from China to Qatar, Saudi Arabia,(We cannot ship Stealth Bomber Ebike to this destination).
 Package

Shipping
Fee

Order Handling Time (Business Day)

Delivery
(Business
Days)

Shipping Methods

Import
Tax

package
(1-30kgs)

calculated 
at checkout
2-3 10-15 FEDEX, UPS, DHL or POST yes, if you are asked to pay 
package>30kgs,
normally the DIY
parts package for stealth bomber Ebike
calculated 
at checkout
2-4 10-15 FEDEX, UPS, DHL or POST yes, if you are asked to pay


Fulfillment & Warehouse Network

We are Authorized Distributor of Unit Pack Power ebike batteries with base factory in Shenzhen China, Oversea warehouse in US, UK, Germany, Australia and Canada. With this advantage, we can provide fast delivery from US, UK, Germany, Australia & Canada.
We are Authorized Distributor of Drvetion electric bicycles with base factory in Guangzhou, China, warehouse in Spain and Germany, which can provide fast delivery to European countries from Spain and Germany.
  • Local Inventory Orders: Orders for items stocked at our US, UK, or EU, CA, Australia are dispatched directly from those local warehouses via local ground couriers (e.g., FedEx, UPS, DHL or DPD).
  • Direct Factory Orders: Items or custom configurations not currently stocked in regional warehouses are shipped directly from our primary manufacturing hub in Guangzhou, China."

Updated on 28th, July, 2026

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
G
Gustavo Ramirez
Battery than I thought.

Battery was better than I had anticipated and lasts very long for the power and speed I use it for.

Blogs

Stealth Bomber Electric Bike Installation Guide Videos

How to install the front wheel of the stealth bomber ebike How to install the front fork, handle bar, headlight,...
Read more

Ebike Motor Troubleshooting Videos Collection

When the motor is not working, there are many factors, some is because of the other parts, for example, the...
Read more

Videos About LCD and TFT Display

1, SW900 LCD Display Setting 2, How to switch kilometers to miles and adjust motor voltage on SW900 LCD Display...
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Electric Handcycle Installation Video Guide

Installation Video Guide for 12" & 16" Electric Handcycle     Installation Video Guide for 20" x 4.0 Fat Wheel...
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Ebike Kit Installation Video Guide

Installation Video Guide of Rear Wheel Ebike Kit-SW900 LCD Display  Small Tip for Installing ebike motor on bike Installation guide...
Read more

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
G
Gustavo Ramirez
Battery than I thought.

Battery was better than I had anticipated and lasts very long for the power and speed I use it for.

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