£785.00 £900.00
MK Battery GEL 12 V 100 AH is unmatched. Proudly made in the USA, tested through 250+ quality checks, and backed by a 12-month warranty, it’s the premium choice trusted by mobility users across the UK. Buy the MK Battery GEL 12 V 100 AH Mobility Scooter Battery today
Availability:In Stock
Unlock longer journeys, faster re-charges, and dependable performance with the MK Battery GEL 12 V 100 AH Mobility Scooter Battery — the genuine, American-made powerhouse trusted by professionals worldwide. This isn’t just a replacement battery — it’s a long-life investment in your independence.
Imagine rolling through your day without worrying about losing charge halfway home. With its deep-cycle design, over 250 quality control checks, and Made in the USA build, the MK GEL 12 V 100 AH offers unmatched consistency and reliability. Each sealed battery is rigorously tested to deliver longer lifespan and smoother performance for mobility scooters, powerchairs, and even backup power systems.
MK’s unique gel technology provides cleaner, safer energy storage with zero maintenance. There’s no acid to spill, no topping up, and no full discharge required before charging. Simply charge and go — day after day.
Extended range & reliability – Deep-cycle capacity of around 97 Ah at the 20-hour rate means exceptional endurance for heavy-demand applications.
Premium American quality – Proudly made in the USA, each battery undergoes 250+ factory checks for flawless build quality.
Sealed GEL construction – Maintenance-free, spill-proof, and safe for indoor storage and transport.
Proven longer life – Outlasts traditional AGM batteries thanks to higher cycle durability.
Buy in pairs for peak performance – Replacing both scooter batteries together ensures balanced charging and maximum efficiency.
VAT relief eligible in the UK – Save money when used for qualifying mobility equipment.
Trusted heritage – MK Battery has been powering mobility and medical devices for decades, combining global support with proven innovation.
Last summer, Arthur from Manchester told me how his old scooter battery left him stranded halfway through the park. After switching to the MK GEL 12 V 100 AH, he said:
“I’ve done the same journey five times now and still haven’t run out of power. It’s changed everything.”
That’s the peace of mind a genuine MK deep-cycle gel battery brings — freedom, reliability, and confidence.
| Feature | Details |
|---|---|
| Battery Type | Sealed GEL, deep-cycle |
| Voltage | 12 V |
| Capacity (20-hour rate) | ~97 Ah |
| Reserve Capacity | ~132 minutes at rated load |
| Model / Part No. | 8G31DT (Dual Terminal) |
| Dimensions (mm) | ~329 × 171 × 248 |
| Construction | Maintenance-free, sealed GEL |
| Country of Manufacture | USA |
| Quality Control | 250+ factory tests per unit |
| Recommended Purchase | Sold in pairs for optimal performance |
| Warranty | 12 months manufacturer’s warranty |
| Suitable For | Mobility scooters, powerchairs, backup power |
| VAT Relief Eligible | Yes (UK qualifying purchases) |
While budget AGM or wet-cell batteries struggle with frequent use, the MK GEL 12 V 100 AH thrives on it. Its deep-cycle design resists wear, allowing hundreds more charge cycles. The result? Fewer replacements, less downtime, and consistent power output you can count on.
Made for serious mobility users, this battery’s longer life, durability, and maintenance-free operation make it a top choice for UK buyers who value reliability over replacements.
Sheila in Birmingham uses her Class 3 mobility scooter every day for errands. After upgrading to the MK 100 AH GEL, she reported over 18 months of flawless performance and still enjoys the same travel range as day one. Her verdict:
“It’s worth every penny — my scooter feels brand new again.”
Check your scooter’s battery bay — at 329 × 171 × 248 mm, this battery suits larger mobility scooters and powerchairs.
Always replace in pairs to ensure balanced charge and discharge cycles.
Confirm your charger supports sealed GEL/VRLA types.
Store and charge regularly — avoid long idle periods.
Typical UK retail price is around £470–£500 inc. VAT, depending on retailer and delivery options.
1. Will this battery fit my scooter?
Check your model’s size and voltage requirements — the MK 12 V 100 AH fits most large mobility scooters and powerchairs with dual battery setups.
2. Why buy batteries in pairs?
Scooters use two batteries working together. Replacing both ensures equal performance and avoids early failure.
3. How long will it last on a single charge?
Usage varies, but expect up to several days of light use or longer full-day trips depending on terrain and scooter model.
4. Do I need to fully discharge it?
No — GEL batteries last longer when recharged frequently. Avoid deep discharge whenever possible.
5. Is it really maintenance-free?
Absolutely. The sealed design means no topping up or handling acid — safe and worry-free.
6. How does it compare to AGM batteries?
MK’s GEL technology lasts longer, resists vibration better, and provides smoother power delivery for mobility use.
7. What’s the warranty?
Each battery includes a 12-month manufacturer’s warranty with free delivery and UK support.
8. Where is it made?
MK Batteries are proudly manufactured in the USA with strict quality standards and over 250 individual inspections per unit.
9. Is it suitable for backup power use?
Yes, the deep-cycle design makes it perfect for UPS systems, stairlifts, and emergency power setups.
10. Can I recycle my old battery?
Yes — UK retailers typically offer collection when you purchase new batteries. Always recycle responsibly.
If you’re looking for long-lasting, maintenance-free power for your scooter or powerchair, the MK Battery GEL 12 V 100 AH is unmatched. Proudly made in the USA, tested through 250+ quality checks, and backed by a 12-month warranty, it’s the premium choice trusted by mobility users across the UK. We also have other batteries available such as MK AGM 17AH Mobility Scooter Battery in stock.
Buy the MK Battery GEL 12 V 100 AH Mobility Scooter Battery today — and give your scooter the endurance upgrade it deserves.
Gareth Holloway
“My order was handled with real care, and the delivery driver even showed me how everything worked. A refreshing level of service.”
Piers Blackwood
“My order was handled with real care, and the delivery driver even showed me how everything worked. A refreshing level of service.”
Yorick Marston
“Smooth experience from ordering to setup. The scooter is exactly as described and has improved my daily routine massively.”