Wireless earbuds like the JBL Tune 235NC have become a must-have for music, calls, and workouts. But over time, you may notice problems like your earbuds not charging properly, draining too fast, or not turning on at all.
If this sounds familiar, the issue is most likely a dead or weak battery inside the earbuds. The good news is – you don’t need to throw them away. At Nationtek and Mr. Watch, we provide professional JBL earbuds battery replacement services in Sri Lanka to restore your listening experience.
Why Do JBL Earbuds Stop Holding Charge?
The JBL Tune 235NC uses a 3.6V rechargeable coin cell lithium battery inside each earbud. Just like phone or smartwatch batteries, these small cells lose capacity over time due to:
-
Daily charging cycles
-
Heat and overuse
-
Natural aging of the lithium battery
When this happens, your earbuds may:
-
Lose power within minutes
-
Shut down suddenly during calls or music
-
Refuse to charge
-
Stop connecting with the charging case
Signs You Need a Battery Replacement
Wondering if your earbuds need a repair? Look out for these common issues:
-
Earbuds won’t turn on
-
Charging case doesn’t detect one or both earbuds
-
Battery drains too quickly (less than 30 minutes playtime)
-
One earbud works while the other stays dead
If you experience any of these problems, it’s time for a battery replacement service.
Our JBL Earbuds Battery Replacement Service
At Nationtek and Mr. Watch, we handle JBL Tune 235NC battery replacements with care and expertise.
Here’s how we do it:
-
Carefully open the earbuds without damaging delicate parts
-
Remove the worn-out battery
-
Install a new 3.6V rechargeable coin cell lithium battery (headset-grade)
-
Use micro-soldering / spot-welding to ensure secure and safe connections
-
Test charging, sound quality, and battery life before handing back
Why Choose Nationtek & Mr. Watch?
-
✔ Skilled technicians with years of repair experience
-
✔ Use of genuine-grade lithium coin cell batteries
-
✔ Warranty on both the new battery and repair service
-
✔ Affordable, fast, and trusted local service in Sri Lanka
-
✔ Available both in-store (Nationtek) and online repair booking (Mr. Watch)
Bring Your JBL Earbuds Back to Life
Don’t let a weak battery stop you from enjoying your favorite music. With a battery replacement from Nationtek & Mr. Watch, your JBL Tune 235NC earbuds will be as good as new – giving you long-lasting playtime, powerful sound, and reliable noise cancellation again.
Visit Nationtek for quick in-store repairs, or
Book your service online with Mr. Watch today!
