Right earbud of your Beats A2078 not working? In this video we show how the team at AppleFix & Tech Engineers (Hamilton NZ) perform a full battery replacement on the A2078 model — from teardown to testing. Whether you’re a DIY enthusiast or a repair technician, you’ll see every critical step.
🛠️ Things you’ll learn: how to open the shell safely, identify the A2078 battery pack, de-solder the old battery, install a fresh 3.7 V pack, test for proper function, and ensure both left + right sides sync correctly.
Visit our shop: 937 Victoria St, Hamilton NZ – we provide fast shipping NZ-wide, Afterpay supported, 3-month warranty on repairs.
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#beatsA2078 #earbudrepair #DIYbatteryreplacement”
Below is a complete, easy-to-follow guide on how to replace the battery on your Beats Powerbeats Pro (A2078) right earbud.
🔍 Common Reasons Why Your Beats A2078 Right Side Stops Working
Before jumping into repairs, it helps to understand the cause:
Worn-out battery (most common after 1–2 years of use)
Charging pin corrosion or dirt inside the case
Moisture damage or sweat entering the earbud
Software desynchronization between left and right buds
Loose internal connection or broken battery wire
If the right earbud light doesn’t blink or doesn’t charge, the battery cell is likely dead.
⚙️ Tools You’ll Need for Battery Replacement
Gather these basic tools before starting:
Small Phillips screwdriver
Plastic opening tool or thin pry tool
Soldering iron and flux
Replacement battery for Powerbeats Pro A2078 (100 mAh, 3.7V Li-ion)
Tweezers and adhesive tape
Optional: Heat gun for gentle disassembly
Always work on a clean surface and wear gloves if possible.
🔧 Step-by-Step Procedure to Replace the Battery on Beats Powerbeats Pro (A2078)
1️⃣ Power Off and Clean
Turn off the earbuds completely. Use a soft brush to clean the charging contacts and outer surface to avoid static discharge.
2️⃣ Open the Ear Hook Section
The battery is located inside the ear hook of the Powerbeats Pro. Use a plastic opening tool to gently pry open the seam. Avoid using metal tools that can damage the housing.
3️⃣ Locate the Battery
Once the ear hook is open, you’ll find a small silver or black cylindrical battery connected via thin wires to the circuit board.
4️⃣ Remove the Old Battery
Carefully desolder the old battery wires from the board using a soldering iron. Remember the red wire is positive (+) and the black wire is negative (–).
5️⃣ Install the New Battery
Solder the new battery wires in the same orientation. Make sure there’s a solid connection and no loose solder. Use adhesive tape to secure the new battery in place.
6️⃣ Reassemble the Ear Hook
Align the casing and snap it back gently. Use a little heat (from a hair dryer or heat gun) if needed to reseal the adhesive properly.
7️⃣ Test the Earbud
Place both earbuds in the charging case and check if the right side LED turns on. Pair them with your phone — both should now play sound evenly.
⚡ Tips to Extend Battery Life of Powerbeats Pro
Always store earbuds in their charging case when not in use.
Avoid overcharging overnight.
Keep away from moisture or sweat buildup.
Charge both sides evenly to maintain balance.
Use original or high-quality replacement batteries.
🧩 When to Seek Professional Help
If you’ve followed all steps but the right earbud still doesn’t work, the issue might be with:
Charging contacts or flex cable
Main logic board damage
Battery controller IC failure
In such cases, a professional microsoldering technician can diagnose and replace the faulty part safely.
💡 Final Thoughts
The Beats Powerbeats Pro A2078 right side not working is often a simple battery issue. With a few tools and care, you can fix it yourself at home and save hundreds of dollars.
Replacing the battery not only restores sound but also extends the life of your premium earbuds.
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