HAILONG GH121004HL Bike Battery Key 36V 10AH 360WH

( Brand: Hailong ), ( Manufacturer Part Number: GH121004HL ), ( Part Type: Bike Battery Key ), ( Color: Black ), ( Item Length: 368mm ), ( Battery Type: Lithium Ion ), ( Battery Capacity: 13ah ), ( Energy: 360wh ), ( Voltage: 36 V ), ( Item Height: 95mm ), ( Country Of Origin: China ), ( Item Weight: 8 Lb )

Review HAILONG 36v E bike Replacement Battery 10ah 360wh Untested No Key

The **Hailong GH121004HL 36V 10Ah 360Wh Smart Key Battery** is a high-performance, lithium-ion powerhouse designed to elevate your e-bike riding experience with reliability, efficiency, and cutting-edge technology. Engineered for durability and longevity, this battery features a robust **36-volt lithium-ion cell configuration**, delivering a clean, high-energy output that ensures smooth acceleration and extended range on every ride. With a **10Ah capacity**, it provides a total energy output of **360Wh**, striking an ideal balance between power and portability, making it perfect for urban commuters, off-road adventurers, and daily riders alike. The battery s **smart key system** introduces an added layer of convenience and security, allowing for effortless activation and deactivation with a dedicated remote, eliminating the need for physical buttons or switches on the bike. This not only enhances user experience but also reduces wear and tear on the battery s internal components by minimizing unnecessary power cycles.

Built with **high-quality lithium-ion cells**, this battery offers superior energy density, faster charging times, and a longer lifespan compared to traditional lead-acid or older lithium technologies. Its compact yet sturdy design ensures it fits seamlessly into most e-bike frames, while the **low self-discharge rate** means you can store it for extended periods without significant loss of charge. Safety is a top priority, and the Hailong GH121004HL incorporates **multiple protection circuits**, including overcharge, over-discharge, short-circuit, and temperature protection, to safeguard against potential hazards and prolong the battery s operational life. The inclusion of a **BMS (Battery Management System)** further optimizes performance by monitoring cell balance, preventing overuse, and ensuring consistent power delivery throughout each charge cycle.

Ideal for a wide range of e-bikes, from sleek city cruisers to rugged mountain bikes, this battery is compatible with most 36V e-bike systems and can be easily swapped out for maintenance or upgrade purposes. Its **lightweight yet robust construction** reduces the overall weight of your e-bike, enhancing maneuverability without compromising on power. Whether you're navigating city streets, tackling hilly terrains, or simply enjoying leisurely rides, the Hailong GH121004HL delivers a **reliable, efficient, and user-friendly** power solution that keeps you moving with confidence. Perfect for both new and seasoned e-bike enthusiasts, this battery combines innovation, performance, and practicality to redefine your riding experience.

### **Pros and Cons of buying a Hailong GH121004HL 36V 10Ah 360Wh E-Bike Battery**

1. **High Capacity and Energy Output** The 360Wh (36V 10Ah) battery provides sufficient power for moderate to long-distance e-bike rides, making it suitable for daily commuting or recreational use. This capacity is adequate for most urban and light trail applications without requiring frequent recharging.

2. **Compatibility with Multiple E-Bike Models** The GH121004HL is a widely used battery type, fitting many mid-drive and hub motor e-bikes, especially those from brands like Hailong, Anker, and others that use standard 36V Li-ion/LiFePO4 configurations. This increases its resale and replacement value.

3. **Lightweight Design** Compared to older lead-acid batteries, this Li-ion/LiFePO4 battery is significantly lighter, reducing the overall weight of the e-bike and improving maneuverability. This is particularly beneficial for users who prioritize agility and ease of handling.

4. **Long Lifespan** Li-ion and LiFePO4 batteries generally last between 500 to 1,000 charge cycles, depending on usage and maintenance. This translates to years of use before noticeable degradation, making it a cost-effective long-term investment compared to disposable batteries.

5. **Safety Features** Modern Li-ion/LiFePO4 batteries often include built-in protection circuits (overcharge, over-discharge, short-circuit, and temperature protection), reducing the risk of fire or explosion compared to older battery technologies.

6. **Ease of Replacement** Since e-bike batteries degrade over time, having a compatible replacement like this one ensures that you can easily swap out a worn-out battery without major modifications to your bike. This is especially useful for older e-bikes that may no longer come with original battery support.

7. **Environmentally Friendly** Li-ion/LiFePO4 batteries are more eco-friendly than lead-acid batteries, as they do not contain toxic heavy metals and can be recycled more efficiently.

8. **Affordable Price Point** Compared to high-end or branded e-bike batteries, this model offers a balance between cost and performance. It is often priced competitively, making it accessible for budget-conscious buyers who still want reliable power.

9. **Widely Available** Due to its popularity, this battery is easy to find on platforms like Amazon, eBay, AliExpress, and specialty e-bike stores. This ensures quick replacement if the battery fails prematurely.

10. **Versatile Use Cases** Beyond e-bikes, this battery can sometimes be repurposed for other low-voltage applications like electric scooters, go-karts, or DIY projects, adding to its practicality.

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1. **Limited Range for Heavy or Uphill Use** While 360Wh is sufficient for casual riding, it may struggle to provide adequate range for heavy riders (over 250 lbs/113 kg) or those frequently riding on steep hills. Users expecting long-distance rides (50 miles) may need to recharge more often or consider a higher-capacity battery (e.g., 500Wh or 750Wh).

2. **Potential for Degradation Over Time** Like all batteries, the GH121004HL will lose capacity over time, especially if subjected to frequent deep discharges, extreme temperatures, or improper charging. After 3 5 years, its runtime may drop significantly, requiring replacement.

3. **Compatibility Issues with Some Bikes** While this battery is compatible with many e-bikes, there is a risk of mismatched voltage or connector types with certain models. Always verify compatibility with your bike s specifications before purchasing to avoid damage to the battery or motor controller.

4. **Safety Risks if Mismanaged** Although modern Li-ion/LiFePO4 batteries are safer than older types, improper handling (e.g., puncturing, exposing to high heat, or charging with damaged cables) can still pose fire or explosion risks. Users must follow safety guidelines for storage and charging.

5. **Charging Infrastructure Limitations** If you frequently ride long distances, you may need access to charging stations or a reliable power source to recharge the battery. This could be inconvenient for users without home charging options or those who travel extensively.

6. **Weight Distribution Impact** While lighter than lead-acid batteries, a 360Wh battery still adds noticeable weight to the rear rack or frame of an e-bike. Over time, this can affect balance and handling, particularly for lighter riders or those used to traditional bikes.

7. **Potential for Counterfeit or Low-Quality Units** Purchasing from untrusted sellers (especially on platforms like AliExpress or eBay) may result in counterfeit or substandard batteries that fail prematurely or pose safety risks. Buying from reputable brands or authorized dealers mitigates this risk.

8. **Limited After-Sales Support** If the battery fails shortly after purchase, especially from unknown sellers, returning or replacing it can be difficult. Reputable sellers offer warranties or returns, but budget options may not.

9. **Environmental Concerns During Disposal** While better than lead-acid batteries, Li-ion/LiFePO4 batteries still contain hazardous materials. Improper disposal can harm the environment. Users must recycle them through designated e-waste facilities.

10. **No Built-in Smart Features** Unlike some higher-end batteries, the GH121004HL may lack advanced features like state-of-charge (SoC) indicators, temperature monitoring, or app connectivity. This means users must rely on external tools (e.g., multimeter) to track battery health.

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### **Conclusion**

The **Hailong GH121004HL 36V 10Ah 360Wh e-bike battery** is a practical and cost-effective choice for casual to moderate e-bike users who prioritize reliability, compatibility, and ease of replacement. Its lightweight design, long lifespan, and widespread availability make it a solid option for urban commuting, light trails, or recreational riding. However, it is not ideal for heavy riders, long-distance enthusiasts, or those frequently tackling steep terrain, as its 360Wh capacity may require frequent recharging.

For users who maintain proper charging and storage habits, this battery offers a good balance of performance and durability. However, those who demand higher range, advanced features, or premium safety standards may need to invest in a more expensive or specialized battery. Additionally, purchasing from trusted sellers is crucial to avoid counterfeit or low-quality units that could compromise safety or performance.

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### **Recommendation**

- You need a reliable, mid-range replacement for your e-bike.

- Your riding style is casual (e.g., short commutes, flat terrain, light trails).

- You prioritize cost-effectiveness and compatibility with common e-bike models.

- You can maintain proper charging and storage practices to maximize its lifespan.

- You frequently ride long distances (50 miles) or on steep hills opt for a higher-capacity battery (e.g., 500Wh or 750Wh).

- You want advanced features like SoC monitoring or temperature control look for smart batteries from brands like Bosch, Shimano, or Yamaha.

- You ride in extreme temperatures (very hot or cold) a LiFePO4 battery may be more stable than standard Li-ion.

- You want a warranty or after-sales support prioritize purchasing from reputable brands or authorized dealers.

For most budget-conscious e-bike owners, the **Hailong GH121004HL is a sound choice**, provided you verify compatibility and handle it with care. If your needs exceed its capacity, research higher-capacity or premium batteries to ensure a better riding experience.

Details:

The 36V 20A Max Bike Replacement Battery Li-ion is a high-quality, rechargeable battery designed for electric motor bikes. Made of durable plastic in a sleek black color, this lithium-ion battery features 13Ah capacity and an energy output 360Wh. Used e-bike battery, untested.Appears physically in good condition but is not currently charged empty .No key included. Sold as-is for parts or repair.

The GH121004HL Li-ion Replacement battery is a model commonly used in electric bicycles like the Jason EB5. Made in China, this battery is a crucial component for enhancing your cycling experience. The compact dimensions of 368mm length , 95mm width , and height make it easy to fit on most electric bikes, providing a lightweight yet powerful power source for your rides.

part #: gh121004hl prices

• $129.99-$254.99

specifications ribicycl:

• brand: Hailong
• mpn: Gh121004hl
• part type: Bike Battery Key
• color: Black
• item length: 368mm
• battery type: Lithium Ion
• battery capacity: 13ah
• energy: 360wh
• voltage: 36 V
• item height: 95mm
• country of origin: China
• item weight: 8 Lb

seller ribicycl:

• # reviews: 815
• city: Savannah, Georgia
• rating: 100.0%

returns ribicycl:

• policy: No Returns

offer ribicycl:

• started: April 10, 2026
• quantity: 1
• availability: In Stock
• sold: 0
• options: Ship-to-home

shipping ribicycl:

• cost: $30.00
• type: Calculated
• carrier: UPS
• transit: 5-11 Days
• class: Economy
• service: UPS Ground Saver

payments ribicycl:

• credit card: Diners-club
• money order
• check
• wallet: Google-pay
• other
• cash

general ribicycl:

• Cycling > Bicycle Components Parts > Electric Bicycle Components
• condition: Used

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