If your scooter seems sluggish in Sainsbury’s and won’t hold a charge for as long as it used to, then it might be time for a mobility scooter battery replacement. But how can you really tell?
This guide covers the signs you need to look out for when you need a new battery.
We’ll also outline the different battery types, and tips for choosing the right battery to ensure your scooter maintains its power – so you don’t lose your independence.
Signs You Need to Replace Your Battery
Over time, mobility scooter batteries lose their ability to hold the charge necessary to provide a steady power output. You might need to replace your battery if:
- Your range is shorter than before (you could previously make it all the way into town)
- Charging takes much longer than usual (you find yourself waiting before you can go out)
- The battery drains quickly even after a full charge (you’ve been left stranded – or worry about it)
- Your battery fails to reach full charge (this is one of the most telling signs)
- Your scooter struggles on slopes or with heavier loads (where it didn’t before)
These signs – together or on their own – mean your old battery is no longer performing as it should be, and a replacement or upgrade could improve your scooter’s range and reliability.
If you think your battery is on its way out and would like some advice, talk to our expert team on 0808 109 7570 and we’ll be happy to help.
TGA also stocks batteries and other accessories online, while our maintenance packages include essential battery checks carried out by experienced technicians as part of your full yearly service.
Types of Mobility Scooter Batteries
Mobility scooters use a few main battery types. The right battery for your mobility scooter depends on your exact model, travel needs, and budget.
1. Sealed Lead Acid (SLA) Batteries
- Common in various scooter models
- Maintenance-free and leak-proof
- Good value for money, but heavier than other types
2. Absorbent Glass Mat (AGM) Batteries
- A type of sealed lead-acid battery where the electrolyte is suspended between battery plates in a glass mat
- AGM batteries offer better vibration resistance and can provide steady power over a longer period
- Suitable for daily mobility needs
3. Gel Batteries
- Also lead-acid batteries, but with gel electrolyte
- Handle deeper discharges better, so they last longer between charges
- Ideal if you regularly travel for longer distances
4. Lithium Batteries (Lithium Iron Phosphate)
- Much lighter — up to 7 times lighter than lead-acid alternatives
- Maintenance-free battery option with a higher discharge rate
- Provide more consistent battery performance and can be recharged more times before wearing out
- More expensive, but it can help you replace your battery less often
Given the features outlined above, all TGA’s range of innovative folding, lightweight, and off-road mobility scooters use powerful lithium batteries – including all our powerchairs.
Choosing the Right Battery Size & Type
When choosing the right battery for your scooter model, make sure you check:
- Battery size: the battery compartment must fit the replacement without modification. Using a larger battery than recommended can lead to compatibility problems.
- Voltage and configuration: most scooters require two 12V batteries connected in series to provide 24V.
- Capacity: Measured in Ah (amp-hours), higher capacity batteries can provide more range but may be heavier.
- Power output: a higher discharge rate helps with hills and heavier loads.
Your machine will have a battery specifically designed for use in a mobility scooter, so avoid using car or leisure batteries.
How to Replace Your Mobility Scooter Battery
If you don’t opt for one of TGA’s maintenance packages (which is highly recommended), you can change the battery yourself.
Follow these battery replacement tips to avoid damaging your scooter or the new battery:
- Switch off the scooter and disconnect it from the charger
- Locate the battery compartment – usually under the seat or floor panel
- Disconnect the battery terminals, starting with the negative (-) terminal
- Remove the old batteries carefully
- Place the new battery or two batteries into the compartment
- Reconnect the battery terminals, positive (+) first, then negative (-)
- Ensure the battery fits securely without movement
- Charge fully before first use
If you’re unsure what to do, most battery retailers or scooter service centres can fit the battery for you.
As mentioned, the expert team at TGA can handle all this on your behalf, so you don’t need to worry.
When to Upgrade Your Mobility Scooter Battery
If a spent battery is draining the life out of your scooter, you might want to consider an upgrade rather than simply replacing it with the same type.
An upgrade to your lithium or a higher-capacity AGM battery can:
- Extend your travel range (great for those days out at the coast or longer dog walks)
- Provide more power for slopes (brilliant for exploring the countryside)
- Last longer before needing replacement (helping you stay out all day in town)
- Reduce charging frequency (so you spend less on electricity)
Check your scooter’s battery compatibility first, as some models may require modifications to upgrade lithium batteries. Our friendly team can help you with this should you have any questions.
Battery Care Tips to Extend Life
Maintenance matters, whatever battery type you have. These simple actions will keep all scooter batteries performing well for longer:
- Charge after every use, but don’t leave charging unnecessarily for longer periods
- Store your scooter (and battery) in a cool, dry place
- Avoid letting your battery run completely flat
- Check connections regularly for signs of corrosion
Following these tips can extend battery life and help you replace your battery less often.
Disposal of Old Scooter Batteries
All mobility scooter batteries contain materials that should not go in your general household waste.
Take old batteries to your local recycling centre or return them to your battery retailer.
Many suppliers, such as TGA, recycle them free of charge (pun intended) when you buy a replacement battery.
FAQs
What type of battery do mobility scooters use?
Most use sealed lead-acid batteries, either AGM or gel. Some newer scooters use lithium – including the whole TGA range.
Can I use a lithium battery in my scooter?
Yes, if your scooter is compatible. Lithium batteries are maintenance-free and provide more power for longer. They are higher quality but cost more.
How often should I replace my battery?
Depending on use and type, you should replace your battery every 18 months to 3 years.
Final Thoughts on Mobility Scooter Battery Replacement
As discussed, at some point your scooter battery will need to be replaced or upgraded – but there are simple steps you can take to ensure they perform well for longer.
All TGA Mobility’s market-leading scooters are powered by the very latest lithium batteries for optimal performance.
Whether you already own a scooter or are thinking of buying a new one, our expert team is always on hand to give you the best possible advice on models, batteries, and accessories.
Seen a mobility scooter you like and want to take it for a test drive? Call now on 0800 107 5349 to book your free demonstration at either our Suffolk or Surrey showroom. We can’t wait to meet you.
