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Who makes the Honda Prologue battery?

The Honda Prologue, an upcoming all-electric SUV, will have its battery supplied by General Motors (GM). The Prologue is a collaborative effort between Honda and GM, with GM providing the battery technology and platform for the vehicle.


Collaboration Between Honda and GM


The Honda Prologue is part of a strategic alliance between Honda and GM, where the two automakers are working together to develop a range of electric vehicles. As part of this collaboration, GM will be supplying the battery technology and platform for the Prologue, while Honda will be responsible for the vehicle's design, development, and manufacturing.


This partnership allows both companies to leverage their respective strengths and expertise to bring the Prologue to market. GM's extensive experience in electric vehicle technology, including its Ultium battery platform, will be a key component of the Prologue's powertrain. Honda, on the other hand, will bring its renowned design and engineering capabilities to the table, ensuring the Prologue delivers a high-quality, Honda-like driving experience.


Ultium Battery Technology


The Honda Prologue will be powered by GM's Ultium battery technology, which is a modular, scalable, and flexible battery system that can be used across a wide range of electric vehicles. The Ultium batteries are designed to offer high energy density, fast charging capabilities, and long-range performance.


GM has invested heavily in the development of its Ultium battery technology, with the goal of making it a key competitive advantage in the rapidly evolving electric vehicle market. By leveraging this technology in the Honda Prologue, the two companies are able to bring a high-quality, efficient, and cost-effective electric SUV to consumers.


Benefits of the Honda Prologue



  • Cutting-edge electric powertrain: The Prologue will benefit from GM's advanced Ultium battery technology, providing a long-range, high-performance electric driving experience.

  • Collaborative design and engineering: The Prologue will combine Honda's renowned design and engineering expertise with GM's electric vehicle know-how, resulting in a well-rounded and compelling electric SUV.

  • Competitive pricing: By leveraging the shared resources and expertise of both companies, the Prologue is expected to be priced competitively in the electric SUV market.


Overall, the Honda Prologue represents a significant collaboration between two industry leaders, leveraging the strengths of both companies to bring a high-quality, efficient, and affordable electric SUV to the market.

Who manufactures Honda EV batteries?


LG Energy Solution
LG Energy Solution and Honda Motor Co., Ltd.



How much is it to replace a Honda Prologue battery?


The cost to replace a Honda Prologue's main high-voltage battery can be very expensive, potentially ranging from $5,000 to over $20,000. However, the 12-volt battery is a separate, much cheaper component, costing around $75 to $200. For the main battery, it is important to check if it is covered under the warranty, which typically covers defects and capacity loss.
 
High-voltage battery (main EV battery)

  • Cost: High, ranging from approximately $5,000 to over $20,000. 
  • Coverage: This large battery is covered by Honda's warranty, which typically covers defects in materials and workmanship. 
  • Note: Some owners have reported costs as high as $28,000 or $29,000, though this is likely for a warranty-covered replacement on a newer vehicle. 

12-volt battery
  • Cost: Much lower, typically between $75 and $200. 
  • Coverage: The 12-volt battery is usually covered for the first 36 months under Honda's warranty for defects, as detailed in this Honda Battery Warranty page. 
  • Note: This is a standard car battery, not the main high-voltage battery, and is a separate component that requires periodic replacement. 



Can Prologue use a Tesla supercharger?


Yes, you can charge a Honda Prologue at a Tesla Supercharger using an official, Honda-approved NACS-CCS adapter. Starting in June 2025, this became an officially supported feature for the 2025 Honda Prologue, with adapters available for purchase at dealerships or online. 
How to charge

  1. Acquire the adapter: Purchase the official, Honda-approved NACS-CCS adapter from a Honda or Acura dealership in the U.S. or through the Honda DreamShop website. 
  2. Locate a Supercharger: Use the HondaLink® app or other navigation tools to find compatible Tesla Supercharger stations. 
  3. Connect to the charger: Plug the adapter into the Supercharger's NACS port, and then plug your Prologue's CCS port into the adapter. 
  4. Start charging: Follow the on-screen prompts to begin charging. Some users have reported needing to select "charge a non-Tesla" in the Tesla app to initiate the process. 

Important considerations
  • Use the official adapter: It is strongly recommended to use the official, Honda-approved adapter to ensure a reliable charging experience and avoid potential warranty issues. 
  • Adapter availability: The adapters were scheduled to become available in June 2025. 
  • HondaLink®: Honda Prologue owners will be notified through the HondaLink® app when adapters are available and can use the app to find charging locations. 



What kind of battery does a Honda Prologue have?


The Honda Prologue uses an 85.0-kWh Ultium lithium-ion battery for its main drive system and a separate 12V AGM (Absorbent Glass Mat) battery for its 12-volt electrical system. The main drive battery is an NMC-type lithium-ion battery, which is the same technology used in many GM EVs, but with a unique design for Honda. The 12V battery is a Group Size 47 (H5) AGM battery. 
Main drive battery

  • Type: 85.0-kWh Ultium lithium-ion
  • Technology: NMC (Nickel Manganese Cobalt)
  • Architecture: 400-volt
  • Details: Shares its platform and battery technology with GM's Ultium system. 

12V auxiliary battery 
  • Type: Absorbent Glass Mat (AGM)
  • Group Size: 47 (H5)
  • Cold Cranking Amps: 680A
  • Cranking Amps: 850A
  • Reserve Capacity: 100-105 minutes
  • Details: This battery is for the vehicle's standard 12-volt electrical components and should not be confused with the large, main high-voltage drive battery. 

Key fob battery
  • Type: CR2450 coin cell
  • Details: This is a separate battery used for the vehicle's key fob and is not related to the car's main batteries. 


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.