Outdoor Master Battery Pack - 54Wh Power Bank for Electric SUP Pumps
Cordless power for your pump. This 54Wh battery pack provides a portable 12V output for electric iSUP pumps, letting you inflate away from mains or vehicle sockets. Designed to drive popular pumps like Shark II, Cachalot and Dolphin, then recharge for the next session.
What makes this battery good
- 54Wh capacity – sized for paddleboarding use; supports multiple inflations on a single charge (usage dependent).
- 12V pump output – powers common electric SUP pumps through a car-style socket.
- Up to ~3 boards per charge – typical claim for standard allround boards at moderate PSI.
- High output headroom – max power up to ~150 W to suit high-pressure finishes.
- Compact and portable – easy to store in the boot or board bag.
Real-world performance
Output suits dual-stage SUP pumps that draw higher current near the end of inflation. Actual board count per charge varies with board volume, target PSI and ambient temperature.
Features & specifications
- Portable 54Wh power bank for electric SUP pumps
- 12V DC output via car-style socket
- Supports typical pump loads up to ~150W peak
- Charge leads included
| Capacity | 54Wh portable battery |
|---|---|
| Output | 12V DC (car-style socket), up to ~150W |
| Use case | Powers electric iSUP pumps (e.g., Shark II, Cachalot, Dolphin) |
| Boards per charge* | Up to ~3 inflations (usage dependent) |
| Included | Battery pack • 12V output lead/adapter • Charging cables |
*Varies with board volume, target PSI and ambient temperature.
What’s in the box
- Outdoor Master 54Wh battery pack
- Charging cable
- User guide
Setup tips
- Fully charge the battery before inflating away from mains/vehicle power.
- Connect the pump to the 12V socket firmly; avoid loose plugs that create voltage drop.
- Inflate in the shade where possible - batteries deliver more stable output at moderate temperatures.
- Stop and recharge if the pump stalls or the battery indicator is low before high-pressure finish.
- Store the battery part-charged if unused for long periods (manufacturer guidance).
FAQ
Will it work with my SUP pump?
It’s designed to power 12V electric pumps and is listed as compatible with Outdoor Master Shark II, Cachalot, Dolphin and similar models.
How many boards will it inflate?
Up to around three standard boards per charge at moderate PSI targets. Larger volumes or higher PSI reduce the total.
What’s the maximum output?
Up to ~150W peak (suitable for most 12V SUP pumps). Check your pump’s rating before use.
Can it charge phones or other devices?
Yes - it’s a portable power bank; use suitable cables/ports as specified by the manufacturer.
How should I store the Battery Pack?
Be careful not drop the Battery Pack and do not expose it to long periods of low temperatures. (Avoid storing it in the garage or other cold areas during winter).
Our take
A practical 54Wh battery add-on that frees your pump from the vehicle socket. Ideal for beach launches, remote access points when you want simple, cordless inflation.
