Key Takeaways:

  • Heat can drain and damage your wheelchair battery over time.
  • Storing and charging it properly keeps it in good shape.
  • Regular maintenance helps prevent overheating and performance issues.

Is your electric wheelchair battery draining quicker than normal? Unfortunately, these batteries can be affected by more than just use; summer heat can put extra stress on your chair and cause its battery to drain faster or wear out prematurely. But why is that?

Our team of mobility experts explains how heat affects batteries, tips for storage and charging, and steps you can take to prevent damage and extend your wheelchair’s lifespan below.

Why Is My Wheelchair Battery Draining So Fast?

High temperatures can make your battery work harder, which leads to faster wear and shorter running times. It’s frustrating, but there are a few common reasons this happens.

Heat Exposure

The biggest culprit is heat exposure. When it’s hot outside, the chemical reactions inside your battery speed up. Over time, that means it won’t hold a charge as well as it used to.

Regular Use

Frequent use is also a contributing factor. If you rely on your chair frequently during the day, the battery naturally drains faster, especially if it’s not being charged or maintained properly. And if
your battery is older or already showing signs of wear, it’s even more vulnerable to the effects of heat.

If you notice your chair isn’t traveling as far on a single charge, takes longer to recharge, or feels hot to the touch, those are all signs the battery could be struggling.

How Does Heat Affect Electric Wheelchair Batteries?

Batteries work through chemical reactions that generate power, and heat speeds up those reactions, which causes the battery to degrade faster. Over time, high temperatures reduce its ability to hold a charge, meaning you’ll need to plug in more often.

If the heat is extreme, it can do permanent damage. Batteries may swell, leak, or fail altogether if they’re exposed to high temperatures for too long. Even if your chair seems like it’s fine, ongoing heat exposure could be quietly shortening the battery’s lifespan.

What Other Factors Can Make Batteries Drain Quickly?

Humid weather can cause moisture to build up and corrode the electrical parts inside your chair. Dust and debris can also trap heat around the battery and make the problem worse. Even how and where you drive matters. Rolling over rough terrain or carrying extra weight uses more power and drains the charge more quickly.

Neglecting maintenance also takes a toll. Skipping regular battery checks or ignoring the manufacturer’s care recommendations can cause small issues to go unnoticed until they turn into bigger problems.

6 Tips for Protecting Your Power Wheelchair From the Heat

1. Keep It Out of Direct Sunlight

Whenever possible, park in the shade or bring your chair indoors. If you need to leave it outside, use a light-colored cover to reflect heat and protect it from the sun. Prolonged exposure to direct sunlight can raise the internal temperature of the battery and motor, which can shorten their lifespan over time. Even short periods of extreme heat can impact performance, so it’s always worth taking that extra minute to find some shade.

2. Store It in a Cool, Dry Place

Don’t leave your wheelchair in hot cars or garages. Try to store it somewhere with good air circulation and moderate temperatures. Closed spaces, especially vehicles, can heat up a lot faster than you’d expect. A climate-controlled area is ideal, but even a spot with decent ventilation can make all the difference.

3. Charge in a Cool Area

Charge your wheelchair in a well-ventilated space, away from direct heat. If you have a smart charger, it’ll automatically stop charging once the battery is full; otherwise, set a timer to avoid overcharging. Charging generates heat on its own, so doing it in a warm environment will only make matters worse.

4. Keep an Eye on Battery Temperature

If your battery feels warm, give it time to cool down before using or charging it again. Some wheelchairs have built-in temperature monitors. Overheating can sometimes be an early sign of battery trouble, so pay attention to how your chair feels and performs. If it’s running hotter than usual, it might be time for a quick inspection.

5. Clean the Battery Area Regularly

Wipe away dust and debris to help air flow around the battery. Check for signs of corrosion on the terminals and clean them gently if needed. A clean battery compartment isn’t just about looks, it helps prevent buildup that can trap heat or interfere with connections. A quick monthly wipe-down can go a long way in keeping your wheelchair running smoothly.

6. Replace Worn Batteries

If your battery isn’t holding a charge like it used to or shows signs of swelling or damage, it’s best to replace it before it causes bigger problems. A worn-out battery can overheat more easily and put strain on your wheelchair’s electrical system. Replacing it early helps protect your investment and ensures your chair stays reliable when you need it most.

Wheelchair Repair Services in California

If you’re having trouble with your battery or need help figuring out the best maintenance routine, Freedom Mobility is here for you. Our team can help you troubleshoot issues, find reliable replacement batteries, or offer personalized advice for your specific chair.

Call 800-980-5696 or contact us today to set up a free consultation and make sure your wheelchair stays dependable all summer long.