Portwest 10,000mAh Rechargeable Battery Pack

The Portwest 10,000mAh Rechargeable Battery Pack (SS54) is the power source behind Portwest's heated jacket range — and a capable power bank for your phone, tablet, and other USB devices when you're away from a socket. With USB-C input/output and an additional USB-A output port, it charges your gear and keeps you warm on site all from one compact, pocket-sized unit.

Purpose-Built for Portwest Heated Jackets

The SS54 is designed to be fully compatible with the Portwest S547, S548, and S549 heated jackets, providing the power needed to run the heating elements through cold shifts and outdoor work. Simply connect via USB-C, select your heat setting, and the 10,000mAh capacity delivers sustained warmth when you need it most. If your heated jacket's battery is running low or you need a spare for back-to-back shifts, the SS54 is the direct replacement and backup solution.

Dual Output — Heat and Charge

The SS54 isn't limited to heated clothing. The USB-C output port handles power delivery for USB-C devices including smartphones and tablets, while the separate USB-A output port lets you charge an additional device simultaneously. On a cold site with no access to mains power, this battery pack keeps both your jacket running and your phone alive — two problems solved with one piece of kit.

10,000mAh Capacity in a Compact Unit

At 10,000mAh (37Wh), the SS54 packs meaningful capacity into a form factor that fits comfortably in a jacket pocket or bag. It's enough power to keep a heated jacket running for extended periods or to fully charge most smartphones multiple times over. The nominal 5V output provides stable, consistent power delivery to connected devices.

USB-C Rechargeable

The SS54 recharges via USB-C input, and a USB-C charging cable is included in the box. Plug it into any USB power source — a mains adapter, laptop, van charger, or portable socket — and it's ready for the next use. No proprietary chargers or hard-to-find cables required.

Key Features at a Glance

• 10,000mAh capacity (37Wh) for sustained power delivery
• Compatible with Portwest heated jackets S547, S548, and S549
• USB-C input/output for charging the battery and powering devices
• USB-A output port for charging additional devices simultaneously
• USB-C charging cable included
• Nominal voltage 5V for stable output
• Compact ABS and polycarbonate construction
• CE certified and RoHS compliant
• Li-ion rechargeable battery technology

Ideal For

The Portwest SS54 Battery Pack is an essential accessory for anyone using Portwest heated jackets in cold outdoor environments — construction, utilities, rail, highways, agriculture, warehousing, cold storage, and winter outdoor work. It also doubles as a reliable general-purpose power bank for tradespeople, site workers, and outdoor professionals who need to keep phones, tablets, and other USB devices charged when mains power isn't available.

Specifications

Q: Which Portwest heated jackets does the SS54 work with? A: The SS54 is designed to be compatible with the Portwest S547, S548, and S549 heated jackets. It connects via USB-C and provides the power needed to run the jacket's heating elements.

Q: Can I use this battery pack to charge my phone? A: Yes. The SS54 has both a USB-C output and a USB-A output, so it works as a standard power bank for smartphones, tablets, and other USB-powered devices. You can charge a device and power a heated jacket at the same time using the two output ports.

Q: How long does the battery pack last on a heated jacket? A: Run time depends on the heat setting used. Higher heat settings draw more power and will drain the battery faster, while lower settings extend the run time. The 10,000mAh capacity provides meaningful usage across a working shift — carrying a second SS54 as a backup is a practical option for all-day heated jacket use in very cold conditions.

Q: How do I recharge the SS54? A: Connect the included USB-C cable to the USB-C input port on the battery pack and plug the other end into any USB power source — a mains wall adapter, laptop USB port, van charger, or portable power supply. Recharge time will vary depending on the power source used.

Q: Is the SS54 safe to carry in my pocket? A: Yes. The SS54 is CE certified and RoHS compliant, built from durable ABS and polycarbonate, and uses li-ion battery technology with standard safety protections. It's designed to be carried in a jacket pocket or bag during everyday use.

Q: Can I take this battery pack on a flight? A: The SS54 has a watt hour rating of 37Wh, which falls well within the typical airline limit of 100Wh for carry-on lithium-ion batteries. However, airline policies vary, so always check with your specific carrier before travelling.

Q: Is this a replacement battery for the heated jackets or an additional accessory? A: The SS54 can serve as either. If your heated jacket came with a different battery pack, the SS54 is a compatible replacement or spare. It's also the recommended battery for users purchasing the S547, S548, or S549 jackets who need additional power packs for extended use or back-to-back shifts.