SKU: 8995000002

KETELES K820 & K820 PRO eBike Replacement Battery

Sale price$101.25 Regular price$112.50
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Description

KETELES K820 & K820 PRO eBike Replacement Battery48V 13Ah Replacement Battery for KETELES K820 K820PRO High Power Upgrade Hailong Upgrade your KETELES K820 or K820PRO with this 48V 13Ah Hailong lithium downtube battery, engineered to deliver stronger torque, improved hill climbing ability, and stable power output for commuting, long distance rides, and demanding terrain. Key Features Powerful Output (48V 13Ah): Provides strong acceleration and sustained torque for inclines and heavy load riding. A+

48V 13Ah Replacement Battery for KETELES K820 / K820PRO — High-Power Upgrade Hailong

Upgrade your KETELES K820 or K820PRO with this 48V 13Ah Hailong lithium downtube battery, engineered to deliver stronger torque, improved hill-climbing ability, and stable power output for commuting, long-distance rides, and demanding terrain. 

Key Features
  • Powerful Output (48V 13Ah): Provides strong acceleration and sustained torque for inclines and heavy-load riding.
  • A+ Grade Cells (2600mAh): Durable long-life cells designed for deep-cycle performance.
  • 30A Intelligent BMS: Offers protection against overcharge, over-discharge, overcurrent, temperature issues, and short circuits.
  • Wide Motor Compatibility: Supports 200W–1000W systems commonly used in KETELES e-bikes.
  • 5-Pin Charging Port and USB Output: Reliable 5-pin charging system plus a USB port for powering mobile devices.
  • Integrated Lock with 2 Keys: Provides secure battery mounting and theft protection.
  • On/Off Power Switch: Helps preserve battery life when the bike is not in use.
Product Specifications
  • Voltage: 48V
  • Capacity: 13Ah
  • BMS: 30A Intelligent Motherboard
  • Charging Pins: 5-Pin
  • Charger Included: 54.6V 3A Fast Charger
  • Default Connector: XT60
  • Cell Type: 2600mAh A+ Grade
  • Configuration: 13S5P (48V 13Ah)
  • Dimensions: 370mm × 110mm × 90mm
  • Battery Type: Lithium-Ion (Li-Ion)
  • Suitable Motor Power: 200W – 1000W
  • Weight: 5.5 kg
  • Colour: Black
  • Certifications: UKCA, CE, UN38.3, MSDS
Compatibility & Important Note

This Hailong downtube battery is compatible with the KETELES K820 and K820PRO. The original mounting tray/base plate used in these models may not be compatible with this Hailong battery, which can prevent the unit from mounting securely.

To ensure a correct and stable fit, we provide a compatible Hailong-style base plate for free, along with the charger included at no extra cost. This allows for proper installation without needing external parts or professional modification.

What’s Included
  • 1 × 48V 13Ah Hailong Battery
  • 1 × 54.6V 3A Fast Charger
  • 2 × Locking Keys
  • 1 × 5-Pin Discharge Cable with Base (XT60)
  • 1 × Instruction Manual
Why Choose This Battery for KETELES K820 / K820PRO?

This 48V 13Ah Hailong battery is ideal for riders needing enhanced torque, sustained power delivery, and longer ride time. With its protective BMS, secure lock, and long-lasting cell structure, it is a durable and dependable upgrade or replacement when paired with the correct base plate.

Warning

Always charge the battery using the supplied charger. Do not short-circuit or expose to extreme temperatures. Ensure the base plate replacement is completed correctly before installation. Follow all safety guidelines and dispose of the battery responsibly according to local regulations.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8995000002

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Oscar
Lowell, US
★★★★★ 5
love them!
Great quality!
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Reviewed in the United States on May 12, 2026
J
Verified Purchase
J
Chelsea, US
★★★★★ 4
Better than thin plastic boards
I used to use one of those thin/bendable plastic cutting boards, thinking it's easier to transfer food into pots/pans from the board, but they tend to get bent in time and they're simply too thin and I hated the feeling of my knife pretty much hitting the kitchen counter. So, I decided to buy this set. I wanted to try a wooden board, but didn't want to spend too much in case I didn't like it, and this set had the perfect price tag and I liked the fact it came with 4 different sizes, so that I can see what size would actually be more useful. I've been using it for 2 months now they're doing great (except one of them started splitting a bit and started showing some strange black dots on the side... possibly mold??? though I can't think of any reason why mold would grow on just one of them. Maybe it's related to the fact that it's the only one that's cracking. And this is the only reason why I gave 4 stars instead of 5.) Anyway, apart from that one, the rest are doing well and having 3 boards is plenty. I like the juice groove to avoid spilling liquid on the board, as it happened so many time using the bendable plastic boards. I'm handwashing them with dish soap. They seem to dry pretty fast, and so far no stains etc. on the surface. They're not super duper thick so even the largest one is not too difficult to handle. I sometimes use them to serve some food like appetizers, snacks, pizzas and sandwiches, etc. too!
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Reviewed in the United States on February 12, 2023
R
Verified Purchase
Royce Caswell
Phoenix, US
★★★★★ 5
Great selection!!
Got these for my wife. She loves them. They are thick and easy to clean. They are very durable. They look beautiful. They function for everything we do in the kitchen.
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Reviewed in the United States on January 16, 2026
J
Verified Purchase
Jesse Lange
Phoenix, US
★★★★★ 1
Updated review: spitting and splintering
UPDATE: Originally, one of the boards arrived with a split in it, but I was still happy with them. After a few weeks of light use, hand washing and drying of the boards, I figured it was time to update this review and knock these down to 1 star. The boards do not hold up very well. Cut marks are deep, and they are starting to splinter. Another of the boards has also developed a split. Save your money and go with cutting boards from someone else. ORIGINAL REVIEW: I bought these cutting boards to cut down on microplastic exposure. This would be a 5 star review except that one of the boards arrived cracked (noticed while hand washing all of them before use). Despite the one cracked board, I did not return them, as I immediately started using the boards, was too busy to deal with it at the time, and the overall value was still there. These boards are great, the value is excellent since you get several of different sizes. I like that all sizes have the moat for juices, because sometimes you are cutting one or two chicken breasts or one steak and don’t want to have to grab a big board. I honestly am writing this review because I wouldn’t be surprised if the company sends me a replacement. If they do, I will update the review to reflect their customer service.
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Reviewed in the United States on February 17, 2025
B
Verified Purchase
Brittany Collins
Whiting, US
★★★★★ 5
Will buy again
Love my cutting boards. Great quality
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Reviewed in the United States on April 22, 2026

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