Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 - code MAR20

Battery Pack 4.0

Stay charged and connected with a waterproof battery pack that keeps your WHOOP 4.0 powered up and data flowing, no matter the conditions.

£44.00
In stock. Next day delivery available.

Buy now, pay later from £11.00/mo with

Free UK shipping over £50, free returns.
  • american-express
  • apple-pay
  • google-pay
  • master
  • paypal
  • visa

Key Benefits

  • WHOOP 4.0 compatible.
  • Slides onto the WHOOP 4.0 to charge on the go. 
  • IP68 dust-proof and waterproof design. 

Introducing the WHOOP Battery Pack, your key to non-stop performance and insight. This innovative accessory is built to keep your WHOOP 4.0 charged and ready, no matter where your day takes you. Designed with durability in mind, the waterproof IP68 rating ensures it withstands sweat, rain, and rugged conditions while maintaining top performance.

Enjoy uninterrupted data collection for days on a single charge and make informed health decisions with ease. Simply slide the battery pack onto your WHOOP 4.0 to stay connected, and recharge effortlessly using the included USB cable. With its dust-proof and water-resistant features, the WHOOP Battery Pack ensures you stay powered up, rain or shine.

WHOOP was founded in 2012 by Will Ahmed, then a Harvard student athlete, who was determined to enhance his training and recovery. After reviewing over 500 medical papers, Ahmed discovered that continuous monitoring of metrics like heart rate and variability could significantly boost performance and wellbeing. This insight led to the creation of WHOOP, a groundbreaking wearable that provides unparalleled visibility into how sleep, strain, and recovery impact overall health and performance.

From its beginnings with elite athletes like LeBron James and Michael Phelps, WHOOP has revolutionised the understanding of human physiology. The company's mission is to unlock human performance by offering deep insights into the body’s functions and helping users achieve their highest potential physically, mentally, and emotionally. WHOOP’s relentless pursuit of understanding and optimising human performance continues to drive its innovation and impact.

Here at Healf we do the work for you, every product goes through a 3 step curation process of Discovery, Expert Validation, and Community Testing. So you know you are only getting the best.

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

You may also like

Shop by collection

Frequently asked questions

Our main focus here at Healf is to make sure you are getting access to the best global wellbeing brands that align with our core values, where we believe wellbeing is characterized by The Four Pillars - EAT, MOVE, MIND, SLEEP. We hand select products all over the world and put them through our strict three step curation process which entails discovery, expert validation, and our community testing. In order to protect our community we always quality check all ingredients of the products we select, and do not feature products with any ingredients we mention on our Healf Banned Ingredient List.

Our team of in-house experts stay up to date with the latest research on wellbeing. They constantly evaluate health trends and make sure to filter real vs. faux and deeply understand that there truly is no ‘one size fits all’ approach to your wellbeing. You can check the Healf journal here and make sure to subscribe to our mailing list for more content.

We love people who check ingredients. You’ll find detailed information about the ingredients in every product page and if you find something you’d like to flag with us or have more questions, drop us a message.

Go to FAQs

Healf
Curation Process™

With our Healf Curation Process, we do the work for you. Shop with confidence knowing every item has been tried, tested, and curated for you.

Go to Page

Brand Discovery

pointer

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Go to Page

Expert Validation

pointer

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

Go to Page

Community Testing

pointer

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.