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๐ Power your vibe with Kratax โ never miss a beat!
The Kratax 3100mAh 11.1V Lithium-ion replacement battery is a high-capacity, certified safe upgrade for Jawbone Big Jambox speakers, delivering 25% longer playtime with built-in protection circuits and a convenient installation tool included.

































| ASIN | B07GRZGT92 |
| Antenna Location | Suitable for Big Jambox speakers |
| Battery Capacity | 3100 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 29 Grams |
| Best Sellers Rank | #5,564 in Portable Bluetooth Speakers #38,479 in MP3 & MP4 Player Accessories |
| Brand | Kratax |
| Built-In Media | battery pack with tool |
| Compatible Phone Models | Jawbone Big Jambox speaker |
| Customer Reviews | 4.2 4.2 out of 5 stars (24) |
| Item Dimensions | 8.46 x 3.15 x 0.98 inches |
| Item Weight | 188 Grams |
| Manufacturer | Kratax |
| Model Name | icr18650b4 |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Reusability | Rechargeable |
| UPC | 680727203160 |
| Unit Count | 1 Count |
| Voltage | 11.1 Volts |
R**1
Works as advertised.
Item is working as advertised.
K**C
Jambox replacement battery
Battery works. To replace takes some time . I would estimate 1/2 hour
O**R
The product was very easy to exchange to my big jam box
The replaceable battery works great. Thank you very much.
S**R
Great replacement battery
Product comes with easy to follow directions. My Big Jambox is operating like new. This battery replacement is a great way to revive an expensive yet very good product (Jambox) that still competes well with other products in its price range.
A**R
Died after 14 months...
Died after 14 months of light use. So don't think you are repairing your jambox, I guess. You're buying a little while longer before the inevitable. Suggest you save the money and put towards a better bluetooth speaker...or a better battery, if such exists. Sad reflection of our world. At least dispose of the old Kratax battery responsibly, please.
D**Y
Good Replacement
Had no problems replacing everything fit perfectly and appears to be working fine.
Trustpilot
4 days ago
1 month ago