We are Authorized Distributor of Unit Pack Power ebike batteries, please check here for the certificates of authorization.
theebikemotorkit
Down Tube 17.5ah 19.2ah 20ah 48v ebike battery for 1000w 1500w 2000w motor ebike ship from US UK EU
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
Regular price
CHF 319.00
Regular price
Sale price
CHF 319.00
Shipping calculated at checkout.
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Quantity
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General Info of The Item
General Info of The Item
Voltage: 48V 52V
Motor Power: W
Number of Speed:
Maximum Speed:
Motor Type:
Tire Type:
Brake Type:
Color:
Product Description
Product Description
What the Item includes
What the Item includes
Shipping & Delivery
Shipping & Delivery
Free Shipping to US, UK & Germany. For some items shipping from China, it is free shipping to EU countries and Australia too. For more Details, please check the shipping policy below.
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 |
| 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 |
|
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 |
|
|
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 |
Order Handling Time (Business Day) |
Delivery |
Shipping Methods |
Import |
|
package |
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
Shop with Confidence: 30-Day Money Back...
Shop with Confidence: 30-Day Money Back...
14-Day Money-Back Guarantee for Any Reason
Undamaged and unused product may be returned for a full refund for any reason within 14-days after receiving your items. Once the returned items arrives back in theebikemotorkit's warehouse for inspection, the refund process will be begin.
- Returns must include all accessories;
- Returned items must be in the same condition that you received it, unworn, unused, undamaged, and in its original packaging. You'll also need the receipt or proof of purchase;
- For non-quality related return, the buyer is responsible for the return shipping cost;
- For quality related return, theebikemotorkit will bear the return shipping cost;
- We don't accept Used products return except it is the product problem or extremely product defects.
- Please contact us for the return address before your return.
How to Return an Item
- To start a return, you can contact us at [email protected]. If your return is accepted and meet the free shipping return requirement, we’ll send you a return shipping label, as well as instructions on how and where to send your package.
- For the return which the buyer need to pay the return shipping cost, please contact us by email to get the return address. Then let us know the tracking number after you ship the items.
- Your items must be in the original packaging. Or the refund and replacement would not be issued. Items sent back to us without first requesting a return will not be accepted.
Return Shipping Cost
Please read carefully the condition below to see who need to pay the return shipping cost. If the conditions are not met for return or warranty, theebikemotorkit reserves the right to the exchange or refund.
|
Time after purchase |
Product Condition |
Return |
Exchange |
Shipping Fee |
|
＜14 Days |
(Unopened and Unused) Brand New |
√ |
× |
borne by the customer |
|
(Opened and Unused) Non-Defective Product |
√ |
× |
borne by the customer |
|
|
(Opened and Used) Defective Product (provide product video) |
× |
√ |
borne by the seller |
|
|
＞14 Days |
Non-Defective Product |
× |
× |
/ |
|
3 Months |
Defective Product (provide product video) |
× |
√ |
borne by the seller |
|
6 Months |
Defective Product (provide product video) |
× |
√ |
borne by the seller |
|
12 Months |
Defective Product (provide product video) This does not apply to Controller and LCD, TFT display |
× |
√ |
borne by the seller |
Please note: To avoid malicious returns and save our labor costs and time. If the customer claimed the product defective and request return. Please provide product videos to us. At the same time, we will detect the cause of the failure after the product is returned to the warehouse. If it is man-made damage or return caused by improper use. We will charge consumers a return fee of 10%~20%, and the return shipping fee is borne by the consumer.
Refund
- Please send us a notification after you ship the item out and provide a tracking number. After we receive the item you returned and check out that the item is in good condition, we will replace or refund you. This will be issued in 5-7 business days.
- If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next, contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund, please contact us at [email protected].
How to measure the wheel size and dropout of A bike
How to measure the wheel size and dropout of A bike
How to Measure a Bike Tire (How to Measure a Bicycle Tire)
In the bicycle field, the wheel size is the size of the bike wheel after you install the tire. So when you get the tire size, you get the bike wheel size.
If you have a bike tire on your wheel, you can generally find required measurement information on the tire wall (side of tire – see picture below).
Tire walls usually display the size as the picture below.
If you can’t find the sizing on the wall of your tire, here we show you the methods to get your bike wheel size.
The Standard Method (Easiest and Fastest Ways to Find Bike Tire Size)
The standard method is to measures the tire width and tire diameter in inches.
How to Measure Bike Wheel Size with the Standard Method
- Put your bicycle on its kickstand or against a wall so that it’s stable.
- Place the bottom of the tape at the lowest point of the tire (on the ground) and measure in a straight line to the centre of the bike wheel to find your wheel radius (as shown in the image above). Multiply your wheel's radius by two, then it is the wheel's diameter. it is the wheel size.
- Measure the tire's width by placing the type across the top of it like the picture below. the number you got is the tire width. Be sure to list the diameter first, followed by the tire width.
- Bike wheel diameters are rounded to the nearest half-inch, so if your measurements are just over or under, round up or down to the nearest size.
How To Measure a Bike Wheel (Rim) for Tire Size
If you do not have your bike’s tire to hand, you can determine the tire size by measuring your bike’s rim width in millimetres as well.
Based on the average tire and wheel combinations currently on the market, the following charts illustrate the coinciding tire size and rim length.
Many rims will display their size somewhere, but some rims may be missing this measurement.
If you cant find measurement on your wheel’s rim, follow the easy steps below that will help you determine the appropriate tire sizes your rim can handle.
- With no tire on your bike wheel, position the wheel vertically and hold it steady.
- Take a measuring tape and press it against the inside of the rim, where the tire bead would normally sit.
- Measure the internal distance from one side of the rim to the other (as shown in the image above).
- Take this width and apply it to the correct table below.
Road Bike Rim Width to Tire Size Chart
Measure of Wheel
20" -- outer tire: 495mm dia.; rim: 410mm dia.;
24" -- outer tire: 600mm dia.; rim: 517mm dia.
26" -- outer tire: 650mm dia.; rim: 573mm dia.;
700C -- outer tire: 690mm dia.; rim: 635mm dia.
28" -- outer tire: 710mm dia.; rim: 650mm dia.
How to measure the dropout of your bike
The dropout of your bike is important, it can decides if the electric bike kit can fit your bike or not. So before your purchase of an ebike kit, please measure the dropout of your bike first.
Bike dropout is literally called frame spacing, is the inside distance between the two fork ends (drop outs) where the wheel fits in. it is very easy to be measure just by removing the wheel and holding a ruler to measure the place where the wheel came out. please check the following picture.
Down Tube 17.5Ah 20.8Ah 20Ah 48V ebike battery for 1000w 1500w 2000w ebike UK DE US Stock
Experience reliable power with our premium 48V eBike battery, engineered for high-performance electric bikes. This robust ebike battery 48v 20ah delivers consistent energy for 1000W, 1500W, and 2000W motors, ensuring smooth acceleration and extended range on every ride. Built with advanced lithium technology, it offers superior durability and faster charging cycles. Available in ebike battery US stocks for quick domestic shipping, plus convenient options from UK and EU warehouses. The down tube design integrates seamlessly with your frame for optimal weight distribution. Perfect for commuters and enthusiasts seeking dependable power. Upgrade your eBike experience today with our trusted 48v ebike battery solution.
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 .
Specification
1, Nominal Capacity(AH): 15AH/20AH
2, Nominal voltage(V): 48V
3, Battery internal resistance（mΩ ）: 105
4, Cell Combination: 3x14/4x13/
5, End-off voltage(V): 12
6, Charging cut-off voltage (V): 54.6
7, Rated charging current Amperage of BMS (A): 10
8, Maximum Instantaneous discharging current Amperage of BMS (A): 80
9, Maximum continuous discharging current Amperage of BMS(A）: 40
10, Battery Cell: Samsung 50E
11, 5C discharge.
12, Max discharging Current Amperage(A): 10
13, Charging and discharging time: more than 2000 times.
14, Charging Type (CC-CV): cc/cv
15, Cut-off charging voltage (V): 54.6
16, Charge temperature range ssd: 0-50℃
17, Discharge temperature range: -20–50℃
Packing list of 48v ebike battery
Down Tube eBike Battery Size
Installation
