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Valen Gel 12v 21AH Deep Cycle Battery

Valen GEL 12V 21AH Deep Cycle Battery Reliable, durable, and built for performance — the Valen GEL 12V 21AH Deep Cycle Battery delivers superior power for mobility scooters, powerchairs, and other demanding applications. With advanced GEL deep-cycle technology, this premium battery is designed to provide long-lasting energy, exceptional durability, and total maintenance-free convenience. Trusted by UK mobility users, healthcare providers, and equipment manufacturers alike, Valen batteries are known for their robust construction, consistent output, and dependable reliability even under tough, everyday conditions. Engineered for true deep-cycle performance Unlike standard sealed lead-acid batteries, Valen’s deep-cycle GEL technology is optimized to deliver steady power over long periods without performance loss. It can be discharged and recharged hundreds of times — making it the perfect power source for medium-sized mobility scooters, portable powerchairs, and medical equipment. Each Valen GEL 12V 21Ah battery is fully sealed, leak-proof, and maintenance-free. This means no messy acid, no need to top up fluids, and no corrosion — just reliable, clean power that keeps you moving. Why UK buyers choose Valen GEL batteries Deep-cycle power – Designed for sustained, long-term energy delivery. Maintenance-free – No topping up, no leaks, no fuss. Sealed, spill-proof design – Safe for indoor use and transport. Longer life than AGM alternatives – Proven cycle endurance and stability. Durable and vibration-resistant – Ideal for everyday use and outdoor travel. Trusted performance – Used across UK mobility and industrial applications. 12-month warranty – Backed by manufacturer support for complete peace of mind. Free UK mainland delivery – Quick, reliable shipping straight to your door. Built for demanding users Valen batteries are renowned for their consistency and quality control. Each 21Ah GEL cell is rigorously tested to meet international standards, ensuring optimal reliability and endurance. This battery is ideal for anyone who uses their scooter daily and requires dependable range, strong hill-climbing ability, and long-term performance. Because Valen’s GEL electrolyte technology allows for deeper discharges and stable output, it outlasts many cheaper batteries — delivering genuine value over time. Real-life insight Debbie from Manchester switched her ageing AGM batteries for Valen GEL 21Ah ones on her mid-sized scooter. She says: “I’ve noticed my scooter now runs smoother and lasts much longer between charges — even when I’m out on rough paths. No mess, no maintenance, and they just work perfectly.” It’s stories like Debbie’s that show why Valen has become one of the most trusted names in mobility power across the UK. Key features & specifications Feature Details Battery Type Sealed Deep-Cycle GEL Voltage 12 V Capacity (20-hour rate) 21 Ah Technology Maintenance-Free GEL Dimensions (mm) 181 × 77 × 167 Weight 6.5 kg Terminal Type F2 Recommended Purchase Sold in pairs for 24V systems Applications Mobility scooters, powerchairs, UPS systems Warranty 12-month manufacturer’s warranty Cycle Life 600–800 cycles at 50% depth of discharge Certifications ISO 9001, ISO 14001, CE certified Maintenance None required Country of Manufacture Europe VAT Relief Eligible Yes (UK qualifying buyers) Technical excellence meets practicality Valen’s GEL electrolyte technology uses a silica-based gel to immobilize the acid, making the battery completely sealed and maintenance-free. This design also enhances thermal stability and resistance to vibration, making it ideal for mobility and outdoor applications. Its deep-cycle performance allows for extended range per charge, while its slow self-discharge rate ensures that even if you store your scooter for weeks, it’ll be ready to go when you are. Unlike traditional AGM or SLA models, Valen GEL batteries maintain consistent voltage levels even during longer discharges, improving scooter efficiency and reliability. Important buying notes Always replace mobility batteries in pairs for even charging and optimal performance. Use only a GEL-compatible charger to preserve cycle life. Store batteries fully charged in a cool, dry place when not in use. Fully compatible with scooters using 12V 21Ah or 22Ah batteries (check your manual). Designed to deliver 4–6 years of life under normal use conditions. FAQs about Valen GEL 12V 21AH Battery 1. What scooters is this battery suitable for?The Valen 12V 21Ah GEL battery fits most mid-sized mobility scooters and powerchairs, including models from Pride, Drive DeVilbiss, and TGA. 2. Do I need one or two batteries?Most scooters operate on a 24V system, so you’ll need two 12V 21Ah batteries installed as a pair. 3. How long will it last per charge?Expect 10–15 miles of range per full charge depending on terrain, scooter model, and user weight. 4. Are Valen GEL batteries better than AGM?Yes — GEL batteries typically last longer, perform better under deep discharge, and require zero maintenance. 5. Can I use a standard lead-acid charger?No, it’s important to use a charger specifically designed for GEL batteries. 6. Are Valen batteries truly maintenance-free?Yes — they’re fully sealed and never need refilling or maintenance. 7. Are they safe for travel?Absolutely. Valen GEL batteries are spill-proof and compliant with IATA transport regulations, making them safe for air, rail, or vehicle travel. 8. What’s the expected lifespan?With proper care, Valen GEL batteries last between 4 and 6 years, depending on frequency of use. 9. Can I store my battery unused for months?Yes, but always store it fully charged and top it up monthly to maintain optimal health. 10. What warranty does it come with?A 12-month manufacturer’s warranty is included, covering defects and early-life performance issues. Conclusion The Valen GEL 12V 21AH Deep Cycle Battery is a powerful, maintenance-free solution built for consistent performance and long-lasting reliability. Engineered with advanced GEL technology, it offers superior deep-cycle endurance, safety, and convenience for UK mobility users. You can also check out our new stock Valen Gel 33AH 12V Deep Cycle Mobility Scooter Batteries available now. With free mainland UK delivery, a 12-month warranty, and proven performance across thousands of mobility applications, the Valen GEL 21Ah is the ideal upgrade for anyone who wants lasting independence and confidence on every journey. Buy your Valen GEL 12V 21AH Deep Cycle Battery today — and experience trusted, maintenance-free power that keeps you moving.

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STICKERS, WHAT's NOT TO LOVE?

WEATHER RESISTANT

Our Vinyl Stickers are built to withstand the elements including refrigeration and freezing.

EASY TO PEEL

Cut to shape with a slightly larger backing makes our stickers easy to peel and apply.

LONG LASTING

Printed using UV fade-resistant, water proof & scratch resistant inks to preserve your brand's look.

ECO-FRIENDLY

Our printing process uses No VOC, ECO-UV Greenguard Gold Certified Inks for solvent-free manufacturing.

GREENGUARD GOLD CERTIFIED

Our eco-friendly stickers use Greenguard Gold Certified inks which are cured with Ultra-Violet light. This certification means that each sticker meets rigorous chemical emissions standards and helps reduce indoor air pollution, making it perfect for food-safe and people-safe applications.

FAQ's

DETAILS & DESIGN GUIDE

WHAT IS THE DIFFERENCE BETWEEN DIE-CUT & EASY PEEL STICKERS?

When you select Custom Shaped Stickers, you have the choice of Die Cut or Easy Peel. For ALL Custom Shape Stickers, the sticker will have the shape of the contour of the artwork you provide - this is called the Contour Cut Path and can be indicated in vector artwork by a red dashed line which we will convert to a Cut Path when printing. When you peel a cat shaped sticker from the backing sheet - it will be cut in the shape of a cat (we indicate this on the proofs we send prior to printing). The difference is: with 'Easy Peel' selected - the sticker will be cut to the appropriate shape and have a backing sheet (either square or rectangular) which is larger than the cut-to-shape sticker which makes them easy to peel away from the backing sheet and apply to a surface. With the 'Die-Cut' option selected the sticker AND the backing sheet will be cut in the shape of the contour of the artwork shape - this is more difficult to peel but can look cool. (*Note: Die-cut stickers must have a white border for the cutting process). Both 'Easy Peel' and Die-Cut' stickers are cut to the shape of the artwork.

HOW DO I UPLOAD MY FILE?

Once you have finished adding items to your shopping cart, select 'Checkout'. On The Checkout Page: select the file(s) for us to print and upload using the upload area located after the shipping address. If you need a bit of time – you can email it to us a bit later! If you are having difficulty or have further questions drop us an email. If you need to send us a file visit our Upload page

DO I NEED A PAYPAL ACCOUNT TO PAY?

No. From the 'checkout' page select the option "Credit Cards". You can then enter your details securely in the fields provided.

HOW LONG WILL MY ORDER TAKE?

Production times will vary depending on the volume of orders currently in house (all times are from the moment you approve your digital proof):

Typical Turnaround Times:
t-shirts: 6-16 business days (current high volume)
tote bags: 6-16business days (current high volume)
stickers: 4-8 business days
mugs: 6-10 business days
buttons/magnets: 4-8 business days
stationery: 6-10 business days

We will email you a mock-up proof for your approval prior to printing (proofs are generated usually within 4-12 business hours)

HOW DO YOU PRINT GARMENTS?

All of our garments are printed Direct-to-Garment (DTG) with water-based, 100% non-toxic ink. In other words, we’ve ditched the yucky stuff and our process is safe, supercharged and as sustainable as possible.

Proudly Eco Passport by Oeko-Tex ® and Global Organic Textile Standard Certified.

WHERE IS MY ORDER PRINTED?

All items are printed in our Qualicum Beach Facility with the exception of larger quantities of stationary items which will be printed on an offset press.

HOW ARE YOUR PRODUCTS MADE?

Our products are printed in-house on the latest digital equipment. Our sticker inks are water-proof, fade-proof and Eco Greenguard Gold Certified. Our garments, face masks and tote bags are printed using water-based, 100% non-toxic ink.

DO YOU HAVE A SUSTAINABILITY POLICY?

Yes, we do. We have worked diligently to make real changes to our company, not just lip service. Visit our Sustainability page to learn more.

CAN YOU DESIGN MY STUFF FOR ME?

DO YOU SUPPORT NON-PROFITS & CHARITIES?

Yes we do. Non-profits and charities are the backbone of our society! Please email us your info. and we will provide registered Non-profits and community fund-raisers with a 10% discount code.

WHAT IS YOUR POLICY ON RETURNS?

Every item we produce is custom made and crafted for the customer who has ordered it. Because of this, we are unable to accept returns. If you are unhappy with your order in any way - PLEASE contact us. We can only grow and thrive if YOU are happy and satisfied with the things we have made for you!

DO YOU STORE MY INFO. ON YOUR WEBSITE?

The only information stored on our secure website is your shipping address and email address. Credit card information is sent to PayPal and processed by PayPal. We DO NOT store your credit card information on our website.

I HAVE A VALID BC PST NUMBER

If you are purchasing items for re-sale and have a valid PST Number click the checkbox under the 'email address' field in you billing details and enter your company legal name and PST Number. You will not be charged PST. Please note - we will audit every PST number submitted.

ARTWORK GUIDELINES

Preferred File Format: vector based .AI, .EPS or PDF with all type to outlines.
Usable File Formats: .PNG or .PSD files with a transparent background (our printer prints white - so a white background will print white)
File Resolution: Minimum 300 dpi/ppi

Tips to print the best things possible:

  1. If you are supplying vector files (we love that), please make sure to outline your type (we may have thousands of fonts, but we might not have one you are using).
  2. Bigger is better - if you are uncertain of the resolution you are exporting - go big. We can always down-size and image, but a 72 dpi image will not provide a satisfactory result for your print.
  3. If your supplied artwork is suitable, we will size and prepare it for print at no extra charge. If your supplied artwork requires digital surgery, we will inform you and provide options.
  4. Send us an example. If you are uncertain whether or not your artwork will print the way you want it to - email us an example at [email protected]
  5. Don't Panic! If you have questions or are unsure about something, shoot us an email or drop us a line during business hours. We want to print your things so that they look the best they possibly can. If your things don't look good, we don't look good!

PRODUCT & PRINT DETAILS

Product Info:
Matte Vinyl labels printed full colour using no VOC ECO-UV Greenguard Gold Certified inks. 

Dimensions:
Up to 28" wide by 28" tall

Print Process:
All of our stickers & labels are printed in house onto matte vinyl using Fade-resistant and water-proof inks for the best value & durability.

Production Time:
Sticker production time averages 3-7 business days from time of order to time of shipping. You will receive a estimated shipping time once your proof is approved and your things enter the production phase. We will email you a mock-up proof for your approval prior to printing (proofs are generated usually within 4-8 business hours)

HOW DO I UPLOAD MY FILE?

Once your purchase is complete through the PayPal payment system, you will be returned to the Swag Print Factory Upload Page. From here you are able to enter your contact information and upload your file(s). Simply click the ‘Choose File’ button to select your artwork for uploading. If you are having difficulty or have further questions drop us an email. If you need to send us a file visit our Upload page