Allison

Is your Allison hybrid vehicle underperforming, struggling with power delivery, or displaying hybrid system error codes? Over time, heavy-duty hybrid battery packs—especially in fleet and transit vehicles—lose capacity and begin affecting reliability and fuel savings. Greentec Auto provides reliable, cost-effective replacement battery solutions for Allison Hybrid Electric Drive (HED) systems, restoring performance and uptime for commercial fleets across North America.

Our high-quality battery solutions support hybrid transit buses, delivery trucks, and utility vehicles powered by Allison’s H 40/50 EP hybrid systems. Whether you manage a single vehicle or an entire fleet, we offer expertly remanufactured or new battery packs, installed by certified technicians and backed by warranty coverage designed for commercial demands.

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CUSTOMER FEEDBACK

Trusted by Hybrid & EV Owners Nationwide

Found them through internet search. Requested mobile installation. They called back within 2 hours to set up an appointment. Turns out they had a shop near me, which saved me 50% on installation cost. Took about an hour.

Prompt, quick, professional service. So much cheaper than getting another car. I would highly recommend their service to anyone who needs a hybrid battery replacement.

Chris Walker
January 2, 2025

I was so grateful that my friend told me about this company. What I thought was going to be a $8,500.00 repair, as quoted to me by my regular auto shop, turned into a $2,400.00 repair. I will be forever grateful to Greentec EV & Hybrid Batteries. Thank you guys so much. Their customer service was excellent over the phone, and my experience with the technician that came to my home to do the repair was also excellent. I can’t thank you all enough. You really saved me!!

Lisa Tufano
January 10, 2025

The hybrid battery on my prius started dying and I managed to drove to the shop so I left it with them and told me they’ll finish it by tomorrow at 11am but they done it a lot earlier and faster than I expected. The car was running great again with the purchased of 12 month warranty remanufactured. I’m highly satisfied with the work they’ve done and I recommended them big time.

Ellrick Garcia
February 13, 2025

Need a Battery Replacement?

Why pay more at the dealership? At Greentec Auto, we offer affordable, accessible and reliable hybrid battery replacements at up to 50% less than dealership prices without compromising on quality. Get the best value with expert service, mobile installation, and a warranty you can trust.

CUSTOMER FEEDBACK

Trusted by Hybrid & EV Owners Nationwide

Shipping

The cost of shipping to you is included with your purchase. This offer is good for the entire continental United States.  Add $200 for shipping to a residential address.  Let Greentec Auto make it simple to return your core to us, ask about our reduced return shipping rates.

Core Charge

A refundable “core deposit” of $500.00 will be added to your order at checkout. Once we receive your old battery, we will refund the core deposit back to you minus the cost of return shipping. Cores must be returned within 45 days of purchase.  This applies to shipping orders only.  In all other circumstances, the core will be picked up at the time of service, no deposit required.

How do I return my old hybrid battery?

Once your new hybrid battery has arrived, put the core battery back into the same packaging your battery arrived in.  As soon as we receive your core battery, we will refund the core deposit back to you.  It’s that easy.

Why Fleets Choose Greentec Auto for Allison Hybrid Battery Replacement

Greentec Auto has been the leader in hybrid and EV battery solutions since 2012, with 33 locations across the U.S. and Canada. We specialize in commercial and high-voltage battery platforms, with specific experience in Allison hybrid systems used in public transportation, municipal fleets, and delivery vehicles. Fleet managers trust us for consistent, scalable solutions that lower cost per mile and extend vehicle service life.

Our service includes free diagnostic testing, system compatibility assessments, and expert installation. We provide mobile on-site replacement to minimize vehicle downtime and keep your fleet running. With nationwide coverage, long-term warranty options, and fleet pricing available, we help you get the most out of your investment in hybrid technology.

Allison Hybrid Platforms We Support

Greentec Auto supports Allison H 40 EP and Allison H 50 EP hybrid drive systems commonly used in buses, step vans, and vocational trucks. These systems integrate with various OEM platforms including GMC, Freightliner, and others used by transit authorities and municipal agencies. Whether your vehicle is experiencing reduced fuel savings, lower electric assist, or hybrid system warnings, we provide a direct-fit replacement battery solution with expert installation.

Signs Your Allison Hybrid Battery Is Failing

You may notice your electric motor assist becoming weaker, increased fuel consumption during regular duty cycles, or a loss of regenerative braking performance. Common failure signs also include hybrid diagnostic codes, battery overheating, or vehicle limp mode activation. These indicators suggest your hybrid battery is no longer able to support the high torque and load demands of your Allison drive system. Replacing the battery promptly ensures reliable service and prevents secondary system wear.

Replace or Retire the Vehicle?

For fleet managers and transit operators, replacing a failed battery is often far more economical than decommissioning or replacing the vehicle. A new or remanufactured hybrid battery from Greentec Auto can add years of service to buses or trucks equipped with Allison hybrid drives. We help reduce capital expenditures by extending the life of your current assets and improving operational uptime. If you are planning to sell the vehicle, a functioning battery dramatically improves resale value and performance validation.

The Greentec Auto Advantage

We specialize in commercial-grade battery replacements with rapid response, expert support, and dedicated account service for fleet customers. Our mobile teams are trained to handle high-voltage Allison systems safely and efficiently. Every battery is tested, serialized, and installed to meet the rugged demands of commercial operations. We offer long-term warranties and nationwide support to ensure minimal downtime and maximum return on investment.

Schedule Your Allison Hybrid Battery Replacement Today

If your transit bus, utility truck, or vocational vehicle powered by an Allison hybrid system is showing signs of battery failure, Greentec Auto is your trusted partner for fast, reliable replacement. Our team delivers quality, performance, and value that fleet managers can count on—nationwide.

Schedule your Allison hybrid battery replacement today and keep your vehicles running strong with Greentec Auto.

Know Your Hybrid’s Battery Health Without Breaking the Bank

If you notice warning lights on your dashboard, don’t rush to the dealership for an expensive diagnostic report. Many local auto parts stores can scan your vehicle and provide error codes for free—just ask them to run a quick scan with a diagnostic tool.

Above, we’ve listed some of the most common hybrid error codes. Keep in mind that the check engine light must be onfor major issues to be detected. If your vehicle is experiencing hybrid battery failure, dealerships often charge thousands of dollars for a replacement—typically with a limited warranty.

At Greentec Auto, we offer a cost-effective alternative, providing high-quality hybrid battery replacements at a fraction of the price. Plus, we back our batteries with a comprehensive warranty to give you peace of mind.

Frequently Asked Questions

Hybrid and EV error codes are diagnostic trouble codes (DTCs) triggered by the vehicle’s onboard computer when it detects a problem with components like the hybrid battery, inverter, or high-voltage system. Common hybrid battery codes include P0A80 (Replace Hybrid Battery Pack) and P0A7F (Hybrid Battery Pack Deterioration). These codes help pinpoint issues in hybrid and electric vehicles and are essential in identifying when a hybrid battery replacement may be needed. We’ve dedicated a page where you can find different Error Codes, what they mean, what the causes are, and their symptoms.

Signs you may need a hybrid battery replacement include decreased fuel efficiency, warning lights or hybrid error codes (like P0A80), reduced electric driving range, sluggish acceleration, and unusual fan noises. If you’re noticing these symptoms in your hybrid or EV, it’s best to schedule a high-voltage battery diagnostic with a trusted specialist like Greentec Auto.

Driving with a hybrid battery error code like P0A80 or P0A7F can lead to reduced performance, lower fuel economy, and further damage to the vehicle’s electrical systems. While your hybrid or electric vehicle might still operate on the gasoline engine, it’s not recommended. A professional hybrid battery diagnostic can confirm if a battery replacement is necessary to restore full performance.

The cost of a hybrid battery replacement or EV battery replacement varies depending on the make, model, and battery type. On average, hybrid battery replacements range from $1,500 to $4,000, while electric vehicle battery replacements can cost between $5,000 and $15,000 or more. Greentec Auto offers affordable pricing on remanufactured and new hybrid batteries with installation options and warranty coverage.

Yes! Greentec Auto provides expert hybrid battery diagnostics for vehicles showing warning lights or EV/hybrid error codes like P0A80, P0A7F, and others. Our certified technicians use advanced tools to pinpoint battery issues and recommend the best solution, whether it’s a hybrid battery repair or a full battery replacement. We offer mobile diagnostics and in-shop services at locations across the U.S.