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MK Gel Batteries Mobility Scooter Battery MK AGM 12AH

12AH deep cycle AGM battery from MK.  The highest quality replacement genuine AGM battery with proven performance and a significantly longer life for your mobility scooter, powerchair or backup power supply.

Replacement batteries should be purchased as a pair to ensure peak performance and you have no issues.

  • 12 Month Warranty
  • Free Delivery
  • Over 250 control checks per AGM battery
  • Made in the USA
  • 12 Month Warranty
  • Sealed AGM mobility lasts longer because they have a higher cycle life than AGM batteries.
  • Maintenance free. It does not require to be fully discharged before recharging.
  • Increased durability: Deep cycle ability for heavy-demand applications.

Free Delivery

Free Delivery

We deliver your new batteries to your home address for free.

Twelve Month Warranty

12 Month Warranty

We stand behind everything we sell. If it is not right, we will put it right.

Price Match Policy

Price Match Policy

Found it cheaper elsewhere, we will match it. Just contact us and give us the details.

  • Description
  • Specifications
  • Product Documents
  • Q&A


MK Genuine AGM batteries are a great choice if you're looking for high-quality deep cycle batteries. They have a proven track record of providing long-lasting performance, averaging 1 to 2 years longer than other batteries, and they are the preferred choice of leading mobility scooter and wheelchair manufacturers. With Genuine AGM Technology, the electrolyte is completely immobilized in a highly viscous gelling agent to prevent spillage, making them safe to use in any position except upside down. Additionally, MK Sealed VRLA batteries have a special re-sealing vent system that prevents excessive internal pressure, minimizing the risk of explosion under normal conditions. With over 250 quality control checks and made in the USA with US and imported materials, you can trust in the quality and reliability of MK batteries.

Free Delivery

Free Delivery

We deliver your new batteries to your home address for free!

No extra charges here. We deliver your new batteries to your house for free.

Price Match

Price Match

Seen it cheaper elsewhere?

We don't believe you should ever have to choose between finding the perfect batteries and saving money. If you've seen it cheaper elsewhere, give us a call with the product name and the price you've found. We'll do the rest.

No Quibble Warranty


No Quibble Warranty

We stand solidly behind everything we sell and believe you should have complete peace of mind when purchasing from us. In addition to the manufacturer's warranty, we also provide our 12-month no-quibble guarantee. Sleep easy, knowing that if it is not right, we will put it right. We also offer our technical helpline available seven days a week should

Call 0800122125 to Order

Call to order till 6:00pm on 0800 122 125

Book at Home Demonstration

Want Finance?

Finance these batteries from $9 per week

Product Weight (kg)4.1
Product Documents
Frequently Asked Questions
Still have questions? Send us your question by filling out the form below, we will be happy to assist you.

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How often should i charge my batteries?
For daily users, it is important to charge their equipment on a daily basis, especially those who use their devices outside of their homes frequently. This ensures that the device is always ready for use when needed. On the other hand, occasional users should ensure to charge their mobility equipment before heading out for an outing and after active use. It is recommended to recharge the battery when it reaches around 50% on the gauge of the device to ensure optimal battery life.
How do i charge my batteries correctly?
To ensure your mobility battery is charged properly, it's important to follow some simple procedures. Firstly, always use the automatic charger provided by the manufacturer for all routine charging. Secondly, avoid using an automotive or wet-type charger on Gel or sealed batteries, as it can quickly damage your battery. It's also important to never run your battery completely flat and avoid "topping off" the battery with frequent charging. By following these simple procedures, you can ensure that your mobility battery stays in good condition and lasts longer.
How should i store my battery?
It's important to keep in mind some tips for storing batteries properly. Firstly, always make sure to store your batteries fully charged. Additionally, it's recommended to check all batteries once a month and recharge them as needed. Wet batteries can hold their charge up to 3 months, while sealed batteries can hold a charge for up to 6 months. If you plan on storing a chair or scooter for more than 2 weeks, it's best to charge the batteries fully and then disconnect them. Lastly, try to avoid exposing the batteries to extreme hot or cold temperatures when storing them.
Why are my new batteries not travelling the distance I thought they would?
Our Gel batteries are made with thicker plates than other batteries. Itis because of these thick plates that we are able to get a longer cyclelife from our Gel batteries. The downside is that it takes longer forall the material inside these plates to become active. It takesapproximately 15-25 cycles to break the battery in.
Can i over discharge my batteries?
In short 'YES'.These are some great tips to follow if you want to ensure the longest life for your battery system. One important factor to note is that the shallower the average discharge, the longer the life of the battery. It's recommended to size the battery system to deliver at least twice the energy required to ensure shallow discharges. Also, avoid ultra-deep discharges, which can vary with application and battery type. It's important not to leave a battery at a low state of charge for an extended period of time and to charge a discharged battery as soon as possible. Additionally, it's not recommended to cycle a battery at a low state of charge without regularly fully recharging it. Finally, use the highest initial charging current available, up to 30% of the 20-hour capacity per hour, while staying within the proper temperature-compensated voltage range. By following these tips, you can help ensure that your battery system lasts as long as possible.
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