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Outdoor Master Electric Pump Battery
With a robust 54Wh capacity, the Outdoor Master Portable Charger ensures your devices stay energized throughout your outdoor adventures. This battery works perfectly with Shark II, Cachalot, Dolphin II other brand's electric SUP pumps*.
The battery output is
10.8 V
15 Amps
*Please check your pumps requirements, we cannot be responsible for compatibility issues
Had confirmation that works with:
All Outdoor Mast Pumps
iRocker Pump (9amps)
Swift Inflation & Deflation
Equipped with a 12V car charger, this portable battery pack enables quick inflation and deflation of up to 3 SUP boards. Spend less time preparing and more time enjoying the water.
Voltage Protection Function
The maximum power output could reach 150W. When the power output over 150W, the sup pump power bank will auto stop working to protect battery life. Press the power button to restart it.
On-the-Go Portability
Compact, lightweight, rechargable battery outlet plug, this power bank effortlessly fits into your backpack or paddleboard bag. Wherever your outdoor passion takes you, this portable charger is ready to power up your devices.
🚚 Shipping Info (UK)
We offer FREE UK shipping on orders over £50. For orders under £50, a small £4.75 shipping fee applies.
Smaller items ship via Royal Mail First Class
Larger or bulkier items go via courier (usually next working day)
We aim to pick and pack orders within one working day. Some larger items may take up to two days to prepare, especially if they require custom packaging or boxing.
📦 Check the stock location shown near the “Add to Cart” button.
Being the UK's Duotone / Fanatic / ION Specalist store we are proud to be the only UK retailer with a live stock feed from their warehouse — so you can shop with real-time confidence.
In-store stock typically ships within 1–2 working days.
Our shop is normally closed on Tuesdays and Wednesdays, but during busy summer months we may process orders more frequently.
Warehouse stock can take 5–10 working days to arrive before dispatch.
Large items from the supplier are often drop-shipped directly to your door, with tracking uploaded once available.
🛡️ For high-value orders (e.g. complete setups or large kits worth thousands), we include a discreet tracking device inside the parcel and provide a free returns label for added peace of mind. We take extra care with these deliveries to make sure everything arrives safely.
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Free delivery over £50*
Please enjoy free delivery on orders over £50 within mainland england.
Kudos to Worthing Watersports for expediting the delivery of my purchase when I reached out and no extra cost. I call that great customer service. As per the product, so far so good. Does what it says in the tin! I have been using it to power a SUP electric pump and works great
K
Kev Ellis
great so far
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S
Stuart Moorhouse
Excellent customer experience
Product was delivered very quickly and exactly as described, very a easy ordering process
P
Paul Palmer
Great Outdoor Master 12v Power Bank
Bought this battery pack to use with the outdoor master shark ii pump Used it to pump up three red paddle boards pumped those boards up well with power to Spare. They do say the Charge time nine hours but in my experience it has always charged it quicker than that using a Samsung phone charger I have been well impressed with the battery pack and its facilities to Charge other items
F
Fiona Crowe
Outdoor master power bank
Very impressed with this power bank. It’s going to make a huge difference to how much I get out on the water. And thanks to Worthing water sports for stocking such a great versatile piece of kit!