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Replacement 48V Battery for Ecotric Seagull Ebike

🏍 Goes Up To 20 MPH!

⏪ 30 Day Return Policy!

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📝 18-Month FULL Manufacturers Warranty!

Original Price $0.00 - Original Price $0.00
Original Price $0.00
$359.00 - $359.00
Current Price $359.00

ECOTRIC Replacement Battery for Seagull Electric Bike

Introducing the Ecotric Seagull Electric Mountain Bicycle - White SEAGULL26S900USB-W: your ultimate companion for off-road adventures and urban commutes. Designed with an array of cutting-edge features, this e-bike is set to redefine your riding experience. In this comprehensive product description, we'll delve into the remarkable attributes of this bike, with a particular focus on the impressive 48V 13Ah (624 Wh) Lithium-Ion battery pack.

Eco-Friendly Powerhouse: 48V 13Ah Lithium-Ion Battery

At the heart of the Ecotric Seagull Electric Mountain Bicycle is its formidable 48V 13Ah Lithium-Ion battery pack. This powerhouse of energy storage is a hallmark of quality and reliability. The choice of high-grade lithium-ion cells ensures exceptional performance, characterized by high energy density and superior discharge efficiency. When you're navigating challenging mountain trails or cruising through the city, you can count on the consistent and efficient power delivery from this advanced battery.

One of the standout features of the battery is its remarkable service life. With a cycle life extending beyond 600 charges, the Ecotric Seagull Electric Mountain Bicycle's battery proves to be a long-lasting companion. This translates to years of reliable use and countless adventures without worrying about battery replacements. It's a testament to Ecotric's commitment to providing lasting, high-quality solutions.

Convenient Portability with Detachable Design

For the modern rider, convenience is paramount. Ecotric has taken this to heart by incorporating a detachable battery design. This innovative feature allows you to easily remove the battery and take it home for charging. No more fussing with complicated cables and connectors; just slide it off, charge it in the comfort of your home, and snap it back into place. This design also has the added benefit of deterring theft, ensuring your investment remains secure.

Extended Range: Double Your Adventure

With the Seagull's 48V 13Ah battery pack, you're no longer confined to the limitations of traditional bikes. It's more than just a power source; it's your key to extended adventures. A spare battery can instantly double your travel distance, freeing you to explore further and delve deeper into the great outdoors. Say goodbye to the anxiety of running out of power halfway through your ride and embrace the freedom to explore without boundaries.

Compatibility and Technical Specifications

Compatibility: Seagull

Rated Voltage: 48V

Battery Capacity: 13Ah

Weight: 12.8lb

Built-In Charge Level Indicator

A key feature of the Ecotric Seagull Electric Mountain Bicycle's battery is the built-in charge level indicator. This handy tool keeps you informed about the battery's current charge status, ensuring you're always aware of your power reserve. Whether you're preparing for a long day of off-road adventure or just a quick commute, this indicator gives you the confidence to plan your journey effectively.

Lockable and Removable with Two Included Keys

Security is paramount when you own a premium e-bike like the Seagull. To provide peace of mind, the battery pack is equipped with a lockable mechanism. The included set of two keys allows you to securely lock the battery to the bike frame. This not only deters potential thieves but also ensures that your battery stays in place during your ride. When it's time for recharging, simply unlock it, detach it from the base, and you're ready to power up.

Warranty and Return Policy

To underscore the quality and durability of the 48V 13Ah Lithium-Ion battery pack, Ecotric offers an 18-month warranty. This warranty provides you with protection and assurance against any manufacturing defects or issues that may arise during regular use. For detailed information on the warranty coverage and our return policy, please consult the provided documentation.

The Ecotric Seagull Electric Mountain Bicycle - White SEAGULL26S900USB-W, with its 48V 13Ah Lithium-Ion battery pack, is a true game-changer in the world of electric bikes. It offers a combination of high-performance, exceptional reliability, and user-friendly features that cater to both seasoned riders and newcomers alike. With a focus on environmental sustainability, ease of use, and extended travel range, this e-bike is a fantastic choice for those looking to enhance their cycling adventures. Elevate your riding experience today with the Ecotric Seagull Electric Mountain Bicycle, where innovation meets adventure.


FREE Shipping in 48 States!

Shipping takes 2-3 business days on most orders, with a max of 6-8 business days for more off beat addresses.

ALL of our Orders are Shipped from our Warehouses right here in the USA!

Ecotric Electric Bikes are Shipped 95% assembled! Simply mount the front wheel, set the handlebars, and screw in the pedals. Then enjoy the ride!

FREE Shipping is offered through UPS, FEDEX & USPS.

Spare parts typically ship via USPS, while ebikes and batteries typically ship via UPS or FedEx

If a wrong or insufficient shipping address is porvided, you will be responsible for the second shipping cost.

As soon as your bike has shipped, you will receive an email with Tracking Number allowing you to see the scheduled delivery time to your exact adderss.

Pick Up from Oakland, CA Warehouse...
If you wish to pick up your order directly from the warehouse, please contact us to set up a pick-up date and time via email

Ecotric Return Policy

  1. Ecotric Electric Bicycle Return Policy allows you to return or exchange your electric bicycle once within 30 days start from the date of receiving the bike. Please check the warranty terms for complete information for when a return is applicable. Please note that we do not accept the return of the spare parts or accessories(except battery).

  2. Please request a Return and Exchange Authorization. (contact ECOTRIC Support for a return label at Once the Return and Exchange Authorization is issued, we will email you a return label. You must print the return label and stick it on the box to ship back the electric bike.

  3. Ship-back charge:

         a. If the unit purchase under a free-shipping promotion, there will not be a refund for shipping cost. However, the customer will have to bear the 20% restocking fee of the original price if the return is unrelated to quality, damages or wrong item but merely for a personal and discretional last-minute decision from the buyer.

         b. If the return is accepted, Ecotric will issue a pre-paid shipping slip to you by email. You print the return label and stick it on the box, and take the package to the nearest UPS store.(If you need the pick-up service, please tell us, and we will arrange a return label with the pick up fee for you, but customer will need to pay for this pick-up fee.)

  4. The returned unit must be in like-new condition, include all original packaging,  accessories, and documentation. Any missing components may be deducted from the refund . Any shipping damage during the ship-back may incur a deduction from the refund. 

  5. Returned units are subject to a 20% of inspection and restocking fee from the original price plus 

    There will be 3% charge that will be deducted from the original price paid. This fee is mandated by the bank and/or credit card company and not within our control.

  6. The refund will be issued in an average time frame of 2-3 weeks after we are receiving, inspecting, and processing the returned unit.

  7. If customer wants to cancel the order after the shipping label being created, customer will have to bear the shipping cost.

Warranty information

To make a warranty claim always keep handy the E-Bike model, date of purchase, E-Bike serial number as well as the original order number from our website.

Every ECOTRIC electric bicycle purchased on our website comes with an 18 months warranty ( In the period of 18 months from purchase by Official Authorized Store) against manufacturing defects in materials or workmanship on its frame, battery, motor, controller, and display.

This warranty applies only to the original buyer of the ECOTRIC bicycle and is not transferable under any circumstances. The original buyer refers to the buyer who can provide the order number.

This limited warranty does not apply to normal wear and tear, malfunctions, or failures due to abuse, neglect, improper repair, improper maintenance, alteration, modification, damage or failure due to accident or other improper use, installation of third party components, parts, or accessories, or any products that have been modified from manufacturer’s specifications. The battery warranty does not include damage from power surges, use of improper charger, improper maintenance or other such misuse, normal wear or water damage.

It is important that you register within 30 days after the original purchase to activate the warranty, all fields are required to successfully submit your registration form.



For your reference, please refer to below comprehensive warranty:

1. Frame – are warranted to be free from defects in material or workmanship for 18 months from purchase by Official Authorized Store. Paint finish is considered consumable and is not part of the warranty.
2. Display, Controller and Motor Assembly – are warranted to be free from defects in material or workmanship for a period of 18 months from purchase.
3. Original Batteries – are warranted to be free from defects in material or workmanship for a period of 18 months from the date of purchase as follows: full replacement during the first 12 months, while replacements needed during months 13-18 are prorated.

The battery is sealed and cannot be opened or fixed. The battery should not have a percentage of nominal charge retention of 60% or less. Misuse of the battery, negligence or attempt to open or repair it will void the warranty.

4. General: The bicycle is backed up by a 18 months main warranty, certain components listed on this chart or consumables may be subject to a different period of coverage or not included in this warranty.

5. Consumables: Components subject to wear are not covered by the warranty: Tires, inner tubes, brake lever, brake caliper, brake lines, brake pads, basket, wheel lining tape, light bulbs, LEDS, fuses, etc.

Exclusions: The other parts are Normal wear parts which are excluded from this warranty.
If any parts happen to be damaged during shipping, please contact us immediately after shipment arrival. ECOTRIC will send a replacement part at our expense and will work with you to fix the issue.
Please note that for warranty issues, the customer is responsible for the cost of labor to install warrantied components, however, we will cover the Shipping costs of warranty parts.

If the warranty is void for any reason the customer shall bear any repair or replacement costs resulting from vehicle misuse, negligence or abuse.
Always follow care and preventive maintenance procedures.
Always keep receipts from any services performed to the vehicle by an authorized distributor or service center.
The warranty will be voided by any of the following circumstances:

  1. Failure to follow all directions or recommendations listed in the user manual.
  2. Cycling collision, accident or vehicle damage caused by careless parking 
  3. Acts in violation of laws 
  4. Never registered your ebike or cannot provide the order number
  5. DIY repairs on electronics
  6. Abusive use the bicycle in off-road terrain, mud, snow, water, sand, gravel and water
  7. If the bicycle is used as rental unit 
  8. Damages caused by natural disasters such as earthquakes, lightning, fire, flooding and other hazards .
  9. Rust and/or paint fading caused to heavy exposure to rain, hail, snow or direct sunlight for prolonged periods of time.
  10. Overloading beyond recommended capacity .
  11. Damages caused by nails, needles, broken glass , debris , sharp rocks or other foreign objects .
  12. If the bicycle is used but not limited to stunts, jumping from ramps, stairs or elevated ramps.
  13. If vehicle is used in competitions or racing.
  14. If vehicle has been modified for any purposes on the motor, electrical system, suspension frame, and battery.
  15. Use of other components not approved by the manufacturer.
  16. Damages resulted from improper care and handling.

Due to the nature of the product some components must be exclusive from the manufacturer such as but not limited to the battery, motor, main gauge cluster, controllers, Led headlights, brake drums or disc rotors and pads etc. Other components such as tires, tubes, saddle, racks, baskets may be used from market-ready or compatible products previous approval from the retailer or manufacturer.
For any questions about your warranty or to make any claims please contact ECOTRIC bikes at:



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