Duotone Foil Assist Battery 7A Set (2Pcs)
Duotone Foil Assist Battery 7A Set (2Pcs) - C99:random / 7A is backordered and will ship as soon as it is back in stock.
Pickup available at The SUP Co x Lymington
Usually ready in 24 hours
UK Delivery & Shipping
UK Delivery & Shipping
Get your gear delivered safely and quickly. Whether it’s a small accessory or a 14ft race board, we use specialist couriers to ensure your order arrives in perfect condition.
UK Shipping Rates:
- Orders over £100: FREE Standard Delivery (Excludes Highlands & Islands).
- Orders under £100: Small items and accessories typically ship from just £4.95.
- Hard Boards & Large Items: Specialist fragile shipping ensures your composite board arrives safely (rates calculated at checkout).
As for returns; we will happily refund an item purchased from The SUP Company if returned to us within 30 days; excluding gift vouchers and customised products, except when faulty. Returned goods must be unused and supplied in their original packaging, unless the goods are faulty.
European & International Shipping
European & International Shipping
European & International Shipping:
We ship daily to Europe and beyond.
IMPORTANT FOR EUROPEAN CUSTOMERS:
- VAT-Free Shopping: All orders placed from outside the UK are exclusive of UK VAT (20%).
- Import Duties & Taxes: Please note that you will be responsible for paying your local country’s import duties, VAT, and any administration fees upon the arrival of your goods. These are charged by your local customs office and are not included in our shipping fee.
As for returns; we will happily refund an item purchased from The SUP Company if returned to us within 30 days; excluding gift vouchers and customised products, except when faulty. Returned goods must be unused and supplied in their original packaging, unless the goods are faulty.
Duotone Foil Assist Battery 7A Set (2Pcs)
Duotone Foil Assist Battery 7A Set (2Pcs) - C99:random / 7A is backordered and will ship as soon as it is back in stock.
Description
Description
If you already own a Duotone Foil Assist or Cruise setup, the Duotone Battery 7A Set (2Pcs) is the battery pack that keeps you riding for longer and with less waiting around on the beach. This is a complete working set of two original Duotone 7Ah batteries, built specifically for the Foil Assist ecosystem and designed to deliver reliable, consistent power in a compact, travel-friendly format.
For most riders, this product makes the most sense as a spare or replacement battery set. It is not the part you buy to “start” a Foil Assist setup from scratch. Instead, it is the upgrade that makes an existing setup more usable in the real world, whether that means back-to-back sessions, sharing one system between riders, or simply avoiding the frustration of sitting around while your only set recharges.
Where This Sits in the Range
This battery set sits firmly in the spares and upgrade side of the Duotone Foil Assist range.
If you already have a complete Foil Assist system and want more time on the water, this is the right buy. If you are building a setup from scratch, you will want to start with the Duotone Foil Assist Set AL instead. If your harness or battery box needs replacing, look at the Duotone eHarness Set.
In simple terms:
- Choose this battery set if you already own Foil Assist or Cruise and want a full spare pair.
- Choose the Foil Assist Set AL if you need the actual motor, mast, remote, charger and full core system.
- Choose the eHarness Set if you need the wearable battery-carrying part of the system rather than the batteries themselves.
Why Choose the Duotone Battery 7A Set (2Pcs)?
- One complete working set – the Duotone system needs two batteries connected at the same time, and this pack gives you exactly that.
- More water time – ideal for riders who want a second set ready to go while the first one is charging.
- Great for shared use – especially useful for families, coaching, schools or demo fleets.
- Travel-friendly format – each battery sits just under the typical 160Wh airline limit, making destination trips more realistic.
- Purpose-built for Duotone – these are genuine Duotone Foil Assist batteries, not generic packs adapted from another application.
- Consistent delivery – high-voltage LIHV chemistry helps the assist feel smooth and dependable throughout the session.
Specifications
| Product | Duotone Battery 7A Set (2Pcs) |
| System compatibility | Duotone Foil Assist and Duotone Cruise |
| Battery type | LIHV / LiPo high-voltage lithium |
| Capacity | 7Ah per battery |
| Voltage | 22.8V per battery |
| Energy | 159.6Wh per battery |
| Weight | Approx. 1kg per battery / 2.2lb per battery |
| Quantity included | 2 batteries |
| Typical assist runtime | Approx. 30–60 minutes per set, depending on rider, conditions and setup |
| Travel suitability | Each battery is under the typical 160Wh airline threshold, subject to airline approval and current rules |
Package Includes
- 2 x Duotone Battery 7A batteries
Please note: charger, eHarness, battery box and other Foil Assist components are not included.
Explore the Range
- Duotone Foil Assist Set AL – the core mast, motor and control system if you are starting from scratch
- Duotone eHarness Set – if you need the wearable harness and battery box setup
- Duotone Foil Assist Battery Bag – handy for safer storage and transport
- Shop electric foils, foil assist systems and accessories
Helpful Reading & Buying Advice
- Duotone Foil Assist vs Foil Drive Gen 2
- E-Foiling Guide UK – Waydoo vs Foil Drive vs Duotone Foil Assist
Do I really need two batteries for Duotone Foil Assist?
Yes. The Duotone Foil Assist and Cruise systems require two batteries connected together to operate. That is why this 2-piece set is so important — it gives you one complete usable battery setup.
Is this the right product if I am buying Foil Assist for the first time?
Usually, no. This is best seen as a spare or replacement battery set. If you are starting from scratch, the Duotone Foil Assist Set AL is normally the place to begin.
How long will a full set last on the water?
As a general guide, expect around 30 to 60 minutes of assist per set. Runtime depends on rider weight, foil efficiency, board size, water state, wind, how much throttle support you use and how efficiently you ride.
Can I take these batteries on a plane?
They are designed with travel in mind and each battery sits just under the common 160Wh airline limit. That said, airline policies vary, some require approval in advance, and lithium batteries are typically cabin-luggage only. Always check the latest rules with your airline before travelling.
Is a charger included?
No. This product is the battery set only. If you need the wider system, charger or harness components, we would recommend looking at the full Foil Assist package or the relevant spare parts.
Who should buy a second battery set?
If you regularly do multiple sessions in a day, share one Foil Assist setup between riders, or run a coaching/demo fleet, a second set makes a lot of sense. It cuts waiting time, keeps the day moving and makes the whole system more practical.
Specifications
Specifications
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Features
Payment & Security
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