EVs are still vehicles with moving parts, wear items, and plenty of things that can fail if neglected. The trick is identifying the new value points and educating both staff and customers on what preventative maintenance really looks like in this new electric era.

EV Maintenance Isn’t Zero Maintenance

There’s a common customer perception that EVs are nearly maintenance-free. And to be fair, they do dodge a few classic service items like spark plugs, timing belts, and transmission fluid. But EVs are by no means set-it-and-forget-it.

In many ways, the maintenance approach just shifts from mechanical upkeep to electrical health. Components like high-voltage batteries, power electronics, cooling systems, and even tires and brakes take center stage. For service departments, this means opportunity, especially if you can communicate the value of preventative checks that protect performance, range, and long-term reliability.

1. Battery Health Monitoring: Call it Heart Health

The high-voltage battery is the heart of any EV, and it’s also the most expensive part to replace. That makes battery health monitoring not only smart for the customer, but a rather lucrative service opportunity for the shop.

Dealerships and repair shops can offer regular battery state-of-health checks as part of scheduled maintenance. This includes measuring:

• State of charge (SoC) – How much energy is currently available.
• State of health (SoH) – Overall condition and capacity of the battery versus when it was new.
• Cell balance – Variations between battery modules or cells that may indicate internal degradation.
• Thermal regulation issues – A battery that runs too hot or cold can degrade prematurely.

Offering battery diagnostics proactively rather than waiting for range complaints builds trust and opens the door for early detection and corrective action, before warranty or resale value takes a hit.

Present these diagnostics like you would a multi-point inspection. Frame it as a ‘battery wellness check’ that protects against surprise range loss or reduced charging speed.

2. Thermal System Maintenance: Cooling Matters

EV batteries generate heat during both charging and discharge. And unlike a traditional radiator in a gas car, the cooling system for an EV often spans the battery pack, inverter, onboard charger, and motor.

Over time, coolant can degrade, filters can clog, and electric pumps can wear out. Performing fluid exchanges, flushing out corrosion and buildup, checking coolant strength, and verifying the pump works well should be on the maintenance menu at regular intervals.

Not only does this help prevent battery overheating and capacity loss, but it also ensures consistent performance during extreme weather. Service advisors can position it as a way to protect your range in summer and winter.

3. Brake Service: Regenerative Systems Still Need Pads

EVs rely on regenerative braking to slow down and recapture energy. But that doesn’t mean the friction brakes get a free pass.

In fact, one of the quirks of EV brake systems is that the pads can glaze or corrode from underuse. Add in extra vehicle weight from the battery, and you’ve got a system that still needs routine inspections, rotor cleaning or resurfacing, and pad replacement.

Also, brake fluid doesn’t know it’s in an EV. It still attracts moisture, breaks down, and requires flushing per OEM guidelines.

Shops can offer brake system inspections that include checking the pads and rotors, the brake fluid condition and moisture content, and inspecting the caliper and parking brake movement. All of these are high-value touchpoints that offer peace of mind.

4. Tire Wear and Alignment: Torque Isn’t Free

Instant torque is fun, but it’s also tough on tires. EVs tend to wear rubber faster than their gas counterparts, especially on performance models or cars with rear-heavy weight bias.

This makes tire rotations, alignments, and balance checks more important than ever. And thanks to heavier curb weights, proper inflation is crucial for tire life and even getting the most range.

Service departments can bundle tire maintenance into regular intervals or even create EV-specific inspection packages that include tread depth, wear pattern, and alignment. 

Consider including road force balancing or recommending EV-rated tires to add more revenue potential.

5. Cabin Air Filter and HVAC System: Comfort and Efficiency

Cabin air filters might seem minor, but they’re an easy upsell and matter more in EVs than you might think. It’s because EVs often rely on electric heat pumps or resistive heaters instead of engine heat, and that makes clean airflow more critical to cabin comfort and energy usage.

A dirty filter can make the system work harder and reduce range. Inspecting and replacing the cabin air filter at regular intervals is a low-effort, high-value touchpoint. Same goes for checking HVAC function, blower speeds, and system response times.

It’s an added bonus if your shop has ozone treatment or A/C refresher services available. These are easy ways to keep the cabin fresh without big costs.

6. Software and Firmware Updates: The Digital Oil Change

Modern EVs are rolling computers, and battery management, motor control, and infotainment rely on up-to-date software. OTA updates may handle some of this, but many brands still require in-shop firmware installations. And when vehicles are off warranty, these updates are a customer-pay item.

As a preventative measure, check for service bulletins or firmware updates during scheduled visits. Advising a customer that their vehicle has an outdated battery management software update is a great way to show value and potentially fix an issue before it manifests as a complaint.

You can even market this as a “Digital Tune-Up.”

Building a New Service Culture Around EVs

To make preventative EV maintenance a success story, shops need to reframe the service conversation. Create EV-specific inspection packages, train advisors to highlight value-added services like battery health checks, and integrate Midtronics diagnostic tools into your workflow.

Service managers can lead the charge by:

• Building maintenance menus tailored to EV models
• Equipping techs with the right diagnostic and safety tools
• Training advisors to communicate value beyond oil changes
• Tracking customer data to recommend services before issues arise

The goal? Make EV ownership feel supported, not sidelined.

There’s Money in Maintenance

EVs may not bring in the same service dollars as ICE vehicles on paper, but smart shops know where the real value lies. With high-ticket components like batteries, unique wear patterns, and the need for regular system diagnostics, preventative maintenance can still drive profitability if you position it right.

And when customers know you’re looking out for range, safety, and long-term reliability, they’re more likely to stay loyal.

Preventative maintenance on EVs isn’t disappearing. It’s just evolving. And that evolution brings new ways to serve, new reasons for customers to return, and new ways to keep your service department thriving in the electric future.

The post What Preventative Maintenance Actually Looks Like on an EV appeared first on Midtronics Europe.

The short answer is “sometimes,” but it depends on what exactly is wrong. Battery reconditioning may be possible, but not always. Learn what this means in the context of electric vehicles, where it’s genuinely useful, where it’s limited, and how it plays into resale, trade-ins, and service challenges.

What Does Battery Reconditioning Mean in EVs?

When people hear “battery reconditioning,” they often think of techniques used on lead-acid batteries like desulfation or charge cycling to restore function. But EVs don’t use lead-acid batteries. They run on high-voltage lithium-ion battery packs with complex Battery Management Systems that monitor, balance, and protect the cells.

In an EV, reconditioning usually doesn’t mean physically repairing the battery cells themselves. Instead, it refers to software-level balancing of cell voltages, recalibrating its thermal management, and occasionally a BMS reset. In some cases, it may involve replacing one or more battery modules rather than the full pack. The aim is to recover capacity or resolve erroneous state-of-charge (SOC) or range estimates.

When Reconditioning Works: Cell Balancing and Software-Level Interventions

Not all battery issues stem from actual degradation. Lithium-ion packs contain many individual cells or modules. If some of those cells fall out of balance, the BMS may limit performance or range to protect the battery.

This can happen if the vehicle is stored for long periods, charged inconsistently, or if software updates have changed the way the system calculates range. In these cases, reconditioning can involve using diagnostic tools to identify the imbalanced modules and, potentially rebalance them through software or service tools.

It might result in improved range estimates, restored acceleration, and better SOC tracking. In customer-facing terms, the car “feels better” even if no hardware was replaced.

When It Doesn’t: True Degradation and Irreversible Loss

Lithium-ion batteries degrade chemically over time. This is due to a mix of cycle wear, high charge levels, elevated temperatures, and aging. Once capacity has been lost due to these chemical changes, no amount of reconditioning can bring it back.

In those cases, the only viable repair is to replace degraded modules or, in severe cases, the entire battery pack. Unlike imbalance, chemical degradation permanently reduces how much charge a battery can store and deliver. Diagnosis may be able to detect which modules are at fault, but recovery is not an option – replacement is the only fix.

This is why setting expectations with customers is important. If a battery has lost 30% of its original capacity due to age and use, reconditioning will not restore that lost capacity. 

The Role of Diagnostic Tools in Reconditioning Attempts

Professional-grade diagnostics are the foundation of any EV battery reconditioning effort. You can’t guess your way through battery balancing or SOC recalibration. You need data.

Midtronics tools are designed to deliver exactly that. They assess state of health (SOH), analyze cell balance, measure internal resistance, and look for inconsistencies in charge/discharge behavior. This detailed data is what allows technicians to determine whether reconditioning is even an option.

Accurate diagnostics help you decide whether to proceed with a reconditioning attempt, recommend a module replacement, or prepare the customer for a full pack replacement.

Why It Matters for Trade-Ins and Used EV Sales

Battery health is the single biggest factor influencing the value of a used EV. A used EV with 90% battery health is worth thousands more than one with 65%, even if they look identical on the surface. 

When a used EV arrives on the lot, a quick diagnostic may show that it has range-limiting issues due to imbalance or BMS miscalculation. If those issues can be resolved through reconditioning, the perceived value of the vehicle jumps, and so does the potential sale price.

Dealerships that can assess and recondition used EV batteries will have a clear advantage in the resale market. They can stand behind their EV inventory, provide buyers with health reports, and reduce the risk of complaints about range or battery performance.

Addressing Customer Complaints About Lost Range

Service departments are seeing more customers return with EVs that “don’t go as far as they used to.” This is a common issue, especially among early adopters or customers new to EV ownership. Sometimes the problem is real degradation. Other times, it’s perceived loss caused by poor charging habits, cell imbalance, or outdated software.

This is another scenario where reconditioning can help. By checking for cell imbalance, software misreporting, or thermal issues, technicians may be able to correct the issue without touching the hardware. A BMS reset or range recalibration may be all that’s needed.

Of course, communication is key. Service advisors need to explain the limitations of reconditioning and help customers understand what is and isn’t possible. Not every battery can be rescued, but in many cases, the right tools can restore lost range or performance that seemed to be permanently gone.

The Limitations: What You Can’t Fix with Reconditioning

While reconditioning can be helpful, it’s not a cure-all. Batteries that have suffered true degradation require hardware replacement. EV packs are not designed for field disassembly or DIY repair. High-voltage risks, thermal runaway, and software complexity mean reconditioning must be approached with caution and the proper equipment.

Also, technicians should be trained to recognize when reconditioning efforts are likely to fail. If a battery is too far gone, it’s better to have an honest conversation with the customer than to waste time trying to coax a few more miles out of a failing pack.

Battery Reconditioning as a Value-Added Service

When done right, reconditioning can become a high-value service offering. Customers are willing to pay for peace of mind, especially as EVs age and more of them come off warranty.

Providing a printout or digital battery health report after a reconditioning session not only reassures the customer but also creates an opportunity to build loyalty. It shows that your shop understands EV technology and is equipped to maintain it properly.

For used car departments, offering battery reconditioning before resale can boost vehicle appeal and justify a higher price. A rebalanced battery and documented SOH provide real value to shoppers in a market where range anxiety still lingers.

Know What You Can – and Can’t – Do with EV Batteries

Battery reconditioning for EVs is not a silver bullet, but it is a useful tool. It can resolve some complaints, improve range accuracy, and even enhance the value of used EVs. What it cannot do is reverse chemical degradation or make a failing battery new again.

With the right tools, training, and expectations, service departments and sales teams can use battery reconditioning to their advantage. Midtronics provides the tools and insight needed to make those calls, helping you navigate the world of EV battery health with your customers.

The post Battery Reconditioning for EVs: What’s Possible and What’s Not appeared first on Midtronics Europe.

Learn what happens to batteries exposed to floodwaters, how to identify signs of damage, and the best practices for decommissioning and repairing them.

What Happens to Batteries in Floodwater

Floodwaters can devastate batteries, just like many other parts. It’s no secret that electrical devices and water aren’t a match made in heaven. The specific effects vary depending on the type of battery, but the combination of water exposure and contamination can create widespread damage.

For Lead Acid Batteries

For 12V lead-acid batteries, water exposure can lead to terminals and connector corrosion. Over time, corrosion interferes with conductivity, making it harder for the battery to perform efficiently. The battery’s electrolyte may also become diluted or contaminated by floodwater if you aren’t dealing with a sealed battery. It’s the least reactive of the battery types, though.

For Other Chemistries

12V lithium-ion batteries, commonly found in hybrid and electric vehicles plus some high-end models, react differently to flood exposure. While some lithium-ion batteries are housed in sealed enclosures, prolonged water exposure or submersion can degrade the seal, and that’s when the trouble gets serious. 

When water enters the battery, it can lead to internal short circuits, cell instability, or even thermal runaway, a dangerous condition where the battery overheats and potentially catches fire. Corrosion can also damage the battery’s external connections, further impacting its ability to function.

For High Voltage Batteries

High-voltage EV batteries are generally protected well by their enclosures, and in multiple levels. However, these enclosures are not immune to damage, particularly in situations where seals have been compromised by debris or prolonged submersion. Water inside a high-voltage battery can damage its cells, cause chemical leaks, or like Li-ion 12V batteries, the potential for fire with thermal runaway – but with much more energy to release. Even without visible damage, these batteries may retain dangerous levels of electrical energy, making proper handling and testing critical.

Signs a Battery Has Been in a Flood

Identifying flood damage is the first step in determining whether a battery can be salvaged or must be replaced. 

For 12V lead-acid batteries, the damage is often visible:

• Corrosion around the terminals or connectors is a common sign
• A swollen or distorted casing is also typical
• In some cases, the electrolyte may appear discolored or have an unusual odor, pointing to contamination or leakage.

Lithium-ion batteries may also show signs of damage, although they can be less obvious than with lead-acid batteries:

• A swollen or bloated battery case is a clear indicator of internal damage
• Any evidence of burn marks or discoloration caused by overheating
• Corrosion on the case, seams, connections or any other external parts

High-voltage EV batteries present unique challenges, as the damage is often internal and not immediately visible. Water stains or debris around the battery housing can suggest a breached seal. In many cases, the onboard diagnostic system or battery management system will provide error codes or warning lights, signaling that something is wrong. Also, an unusual increase in heat during operation or charging can indicate water damage.

How to Deal with Batteries That Have Been Flooded

Once you’ve identified that a battery has been exposed to floodwater, handling it correctly is essential. The process begins with de-energizing and progresses to testing, reconditioning, or replacement, depending on the extent of the damage.

De-energizing a flood-damaged battery starts with safety. Always wear appropriate personal protective equipment including gloves and goggles to protect against corrosive materials and potential electrical hazards. Before touching the battery, verify that it’s safe to handle using a multimeter or diagnostic tool to confirm there is no residual energy that could cause a shock. For HV batteries, use equipment like the GRX-5100 Battery Service Tool to discharge the battery pack.

After ensuring the battery is safe, perform a thorough visual inspection. Look for external damage such as corrosion, swelling, or signs of leaking. For EV batteries, pay close attention to the condition of the enclosure and any signs of water ingress. In many cases, advanced diagnostic tools, like those from Midtronics, are invaluable for assessing the internal health of the battery without opening it up.

Testing flood-damaged batteries helps to understand their condition. For lead-acid batteries, diagnostic equipment can measure voltage, capacity, and overall state of health. For lithium-ion and high-voltage EV batteries, testing may involve evaluating cell balance, voltage consistency, and insulation integrity. These tests should always be performed with specialized equipment and by trained personnel with EV certifications.

Reconditioning a battery that has been exposed to floodwater is sometimes an option, particularly for lead-acid models. This can involve cleaning corrosion or recharging the battery under controlled conditions. However, reconditioning lithium-ion and EV batteries is more complex and often not recommended. In many cases, replacing these batteries is a safer and more practical solution.

When replacing a flood-damaged battery, make sure the old battery is handled responsibly and recycled safely. Install the new battery according to the manufacturer’s specifications and test the system after installation. This is especially critical for EV batteries where any faults can lead to significant safety issues.

To Sum It Up

Flood-damaged vehicles are becoming a more common challenge for repair shops, and batteries are among the most critical and potentially hazardous components to address. Whether you’re dealing with a 12V lead-acid battery, a lithium-ion battery, or a high-voltage EV battery, knowing how to safely identify, test, and handle flood damage should be something every shop is aware of. Handling these batteries requires careful discharging, accurate testing, and appropriate decisions about repair or replacement.

Midtronics offers industry-leading equipment that helps technicians work efficiently and confidently, even with complex cases like flooded EV batteries. Equip your shop with the best tools to handle every challenge and keep your customers’ vehicles running safely.

The post How to Handle Batteries in Flood-Damaged Vehicles appeared first on Midtronics Europe.