What Honda Prologue Battery Replacement Costs

Honda only EV available in the U.S. as of 2025 is the

GM Ultium-based Prologue crossover
, which is the birth child of a short-lived joint venture between the two automotive groups. This temporary strategy helps the Japanese brand maintain a presence in the American EV market until its e:Architecture-generation models are ready for production. The

Prologue is a relatively more expensive EV option
, but it benefits from some impressive standard features and performance capabilities, making it one of the better value products in its segment. Based on the brand’s monthly sales, it’s been a surprisingly successful model, with the brand confirming more than 33,000 individual unit sales for the year, despite only being introduced by the second half. By ICE and HEV standards this isn’t an amazing result, but in the EV world it’s somewhat of a success story.

Being an EV, it’s also going to be subject to a battery replacement once it covers a certain distance or lifespan. As noted, the

Prologue sits on a General Motors electric platform
, meaning it barely features any of Honda’s proprietary mechanical components. In this case, you are going to have to conduct a battery exchange, which is typically a very complicated and expensive procedure. Being an Ultium product, battery module prices are not readily available, even from Honda, so finding an accurate figure is a bit of a challenge. Thankfully, GM applies a standardized battery pack, which lets us estimate how much you can expect to pay within a specific range.

In order to give you the most up-to-date and accurate information possible, the data used to compile this article was sourced from various manufacturer websites and other authoritative sources, including the EPA, EVgo, J.D. Power, and Recurrent.

The Honda Prologue Only Has One Battery Option

Honda keeps the Prologue range very concentrated when it comes to state-of-tune options, as you can only choose from two motor configurations with fixed power outputs. This is a curious decision considering the Ultium platform

benefits from a variety of power output possibilities
.

The base model consists of a front-mounted single motor producing 212 horsepower and 236 pound-feet, while the all-wheel drive option increases this to 288 horsepower and 333 pound-feet by adding a second motor to the rear axle. Both derivatives feature GM’s 85 kWh Ultium battery technology, supplied by LG Chem. The system runs on an effective 400-volt architecture, translating to good recharging times and performance. This is GM’s smallest

lithium-ion battery pack
, sitting beneath its 105 kWh and 212 kWh packs dedicated to larger EVs.

Honda Prologue Specifications

Front-wheel drive models return an EPA-rated 296 miles of range with a 34 kWh per 100 miles average energy consumption estimate. The all-wheel drive trim reduces this to 281 miles and increases consumption to 36 kWh per 100 miles. The flagship Elite trims return an even lower 273 miles and a higher 37 kWh per 100 miles average consumption due to its larger wheel option. Using a Level One household plug, you can expect the battery to recover from empty to full in about 70 hours. A Level Two 48 amp charging system cuts this time down to around 8.5 hours. Level Three DC fast charging, locked up to 150 kW, needs only 43 minutes to recover the battery from 0-80 percent.

Honda offers three charging packages, with the sale of each Prologue. Option A includes a Home Charging Station with a $500 installation credit, $100 EVgo charging credit, and 60 kWh worth of charging at Electrify America charging stations. Option B includes a portable charging kit fit for Level Two, with a $250 home charging installation credit, $300 EVgo credit, and 60 kWh of energy from Electrify America. Option C only includes a $750 EVgo charging credit and 60 kWh at Electrify America. Honda is yet to announce the prices of these options.

How Much A New Honda Prologue Battery Costs

Understanding GM’s Ultium battery replacement costs is a bit of a challenge, because the group doesn’t disclose the cost of these parts on its online portals. It’s the same case if you try to look up the Prologue’s battery in Honda’s specialized online parts catalogs, further adding to the frustration.

Thankfully, there is only one battery capacity option, so the estimation range is a lot more concentrated. The best way to approach this is by looking at estimates and forum posts of owners who have already conducted battery replacements due to wear or damage. However, there aren’t many cases of Prologue needing a full battery replacement. There are some manufacturer fault-related incidents, but because these are covered under the warranty, we don’t have a quoted fee for reference.

According to J.D. Power, you can expect an average EV battery replacement to cost between $4,000 and $20,000. Recurrent backs this with a $5,000 to $20,000 estimated range. Technically speaking, both of these are inaccurate estimates, as they cover EVs sold 10 to 15 years ago which will be due for battery replacement today. These are typically far smaller-capacity batteries. We do know that a new battery for a

Chevrolet Bolt
will set you back by $275 for every kWh, which equates to about $16,250 for full module replacement. Unfortunately, we can’t apply this same formula to the new-generation GM EVs, because the Bolt sits on an entirely different platform with older battery technology.

How Long The Honda Prologue’s Battery Lasts

The Ultium battery consists of a

nickel cobalt manganese aluminum chemistry
, which reduces cobalt content by over 70 percent, contributing to a more sustainable design. The flat and stackable battery cells also allow for efficient energy storage and improve ride comfort and vehicle layout flexibility. With embedded electronic components, the Ultium battery eliminates 80 percent of the wiring found in traditional battery packs. This modular system can be customized to fit various energy and range requirements, with up to 24 modules available depending on the vehicle’s needs. GM states that its battery is designed to last between 10 and 15 years or around 100,000 to 200,000 miles, depending on driving habits and conditions.

Frequent use that consists of high-speed driving and regular deep discharges will reduce the battery’s lifespan in the long run. The Ultium battery technology benefits from advanced cooling and management systems that help mitigate degradation over time, but there are some practices you can execute to extend its lifespan. This includes not charging the battery to 100 percent or letting it drain to zero percent frequently. Ideally, you should aim to keep it

between 20 and 80 percent for daily use as often as possible
.

It’s also highly recommended that you try to maintain the use of a

Level One or Two charger
instead of a DC Level Three fast charger. While more convenient, fast charging generates more heat, which can strain the battery over time. Additionally, you should try to store your Prologue in moderate temperatures because extreme heat or cold will accelerate battery wear. It’s also good practice to keep the software up to date, as manufacturers often release updates that improve battery efficiency and longevity.

Honda’s Battery Warranty For The Honda Prologue

Honda offers a fairly comprehensive warranty package for the Prologue range, including a 36-month or 36,000-mile basic coverage. You also get 60 months or 60,000 miles worth of powertrain warranty, while Honda covers all scheduled maintenance in a 24-month or 24,000-mile period.

There’s also 36 months or 36,000 miles worth of roadside assistance and a 36-month corrosion warranty with unlimited miles. Most importantly, your battery pack is covered by a fairly

comprehensive eight-year or 100,000-mile warranty
. This isn’t class-leading, but it does fall in line with the industry standard.

This warranty ensures that if the battery capacity drops below a specified threshold, usually around 70 percent, Honda will repair or replace the battery at no cost to the owner. The warranty also covers defects in materials and workmanship. However, it does not include damage caused by misuse, improper maintenance, or external factors like accidents. This warranty matches industry standards and provides peace of mind for EV owners, ensuring reliable performance during the early years of ownership.