




🔋 Stay powered, stay ahead — never miss a beat with WHOOP Battery Pack 4.0!
The WHOOP Battery Pack 4.0 is a compact, lightweight, and durable charging accessory designed exclusively for the WHOOP 4.0 fitness tracker. Featuring a 638mAh lithium-ion battery, it delivers continuous on-the-go charging with a fast 2.4A output. Its IP68 rating ensures water and dust resistance up to 1 meter for 2 hours, making it ideal for active lifestyles. With built-in safety protections and a quick 2-hour recharge time, this battery pack guarantees your WHOOP tracker stays powered and ready wherever life takes you.










| ASIN | B0BWSFHKGW |
| Amperage | 3.11 Amps |
| Antenna Location | laptop |
| Battery Capacity | 638 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 Hours |
| Battery Weight | 9.3 Grams |
| Battery capacity | 638 Milliamp Hours |
| Best Sellers Rank | #1,040 in Sporting Goods ( See Top 100 in Sporting Goods ) #2 in Fitness Technology |
| Brand | WHOOP |
| Built-In Media | USB Cable |
| Cable Length | 39.37 Inches |
| Color | Onyx |
| Colour | Onyx |
| Compatible Devices | WHOOP 4.0 |
| Compatible Phone Models | WHOOP 4.0 |
| Connector Type | USB |
| Connector type | USB |
| Customer Reviews | 4.7 out of 5 stars 1,030 Reviews |
| Item Dimensions | 43 x 35 x 20 millimeters |
| Item Type Name | Battery Pack |
| Manufacturer | WHOOP |
| Model Name | WHOOP Battery Pack |
| Model Number | 974-001-000 |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Number of Ports | 1 |
| Other Special Features of the Product | IP68 dust-proof and water-resistant up to 1 meter for 2 hours. |
| Output Current | 2.4 Amps |
| Portable | Yes |
| Power Source | Battery Powered |
| Special features | IP68 dust-proof and water-resistant up to 1 meter for 2 hours. |
| UPC | 810114360019 |
| Unit Count | 1.0 Count |
| Voltage | 3.7 Volts |
H**N
ممتاز
ممتاز
P**E
Great product
I lost my charger and got the whoop charger literally the next day Great service
M**R
Broke After One Month, and No Return Option?
I bought this WHOOP Battery Pack 4.0 and expected it to last at least a few months, but it completely stopped working after just one month. This is beyond frustrating, especially considering the return window is already closed. Am I supposed to buy a new battery every month now? This kind of quality is unacceptable, especially for a brand like WHOOP. It’s clear there’s either a major flaw in the product or zero durability built in. I don’t recommend this to anyone unless you’re ready to keep throwing money down the drain.
K**A
Cannot charge it after two weeks
Item stopped working (can’t charge it) after two weeks!
Z**M
Product defective, didn't work 1 day.
It only works if the cable is connected to it and it is being charged.
Trustpilot
2 days ago
1 month ago