Replacement rechargeable battery for iPod 3G 10GB, 15GB, 20GB, 30GB, and 40GB models. Use it for poor runtime, swelling, or power loss after FireWire power checks, while remembering that bad storage or board faults can imitate battery trouble.
Product Overview
This battery listing covers Replacement Battery (All Capacities) and its own connector path on the iPod 3rd Generation.
Use Part Details for the confirmed part-number reference. Use the Compatible Variants table below to confirm capacity, color, case, or order-number fitment.
Choose this part when your iPod shows Won't Charge, Battery Drain, Won't Turn On, or Shuts Down Randomly; the checks below help confirm the right part before you order.
If known-good FireWire power and a properly seated battery still do not restore stable power, the problem might be the dock connector, battery connector, or something on the board, not just the battery.
- USB is for data transfer only and will not charge the battery.
- USB on the 3rd Gen is for data sync only
What Is Included
Quick Diagnosis: Is It The Replacement Battery (All Capacities)?
Start here before ordering. Work through the checks in order; a symptom alone does not prove this battery is bad until nearby parts, cables, fitment, or install issues are separated.
Before you order this battery
- Try a force restart first. Toggle Hold on and off, then hold Menu + Play/Pause for 6 to 10 seconds.
- Check battery and power stability. Do not use a USB-to-30-pin cable as the charging test on this model. It can sync but cannot provide charge power.
- Check FireWire charging power. Use a powered 6-pin FireWire source, FireWire-powered dock, or the FireWire side of Apple's USB+FireWire cable before opening the iPod.
- Check the next listed clue. Note whether the iPod shows charging, briefly powers on, shuts down under load, or never wakes at all.
- Use this listing only after the checks still point here. If the symptom still points here after those checks, compare Compatible Variants before ordering this battery.
Other Symptoms That May Involve This Part
| Commonly described as | What to check before ordering |
|---|---|
| red x | Use this as a battery clue only after the iPod matches this listing's battery fitment. |
Specifications & Fitment
Part Details
| Detail | Value |
|---|---|
| Model Number | A1040 |
| EMC | EMC 1961 |
| Condition | New replacement battery |
| Capacity (Original) | 630 mAh |
| Capacity (High) | Replacement high-capacity SKU varies; confirm label |
| Chemistry | Li-Ion |
| Voltage (Nominal) | 3.7V |
| Connector | Wired plug-in |
| Soldering Required | No |
| Battery identifiers |
616-0159, E225846
|
Compatible Variants
| Order Number | Capacity | Color | Case | Compatible | Notes |
|---|---|---|---|---|---|
| M8976LL/A | 10GB | White | thin | Yes | — |
| M8946LL/A | 15GB | White | thin | Yes | — |
| M9460LL/A | 15GB | White | thin | Yes | — |
| M9244LL/A | 20GB | White | thin | Yes | — |
| M8948LL/A | 30GB | White | thick | Yes | — |
| M9245LL/A | 40GB | White | thick | Yes | — |
Failure Signs
Use these checks to decide whether this battery is the right part, whether a nearby part should be checked first, or whether the symptom needs more diagnosis.
Ribbon, connector, or ground-path checks
What you may see: A symptom starts after opening the iPod or disturbing an internal flex cable.
Check first: Inspect for liquid, corrosion, residue, torn flex material, or connector damage.
Most likely cause: Connector seating, ribbon damage, or ground-path issues can involve this part, a nearby connector, or a board path.
Look elsewhere when: Check the Replacement Hard Drive (10GB) when storage symptoms such as clicking, sad ipod, folder icons, or restore failure are the main problem.
- Check the Replacement Logic Board when board-level behavior after replaceable parts and connectors are ruled out is the main problem.
Symptoms changed after repair or reassembly
What you may see: People describe a new problem appearing immediately after battery, storage, display, audio, or control work.
- A new symptom appeared after battery, storage, audio, display, or control work.
Check first: Reopen only as far as needed to inspect the areas touched during the repair.
- Compare the new symptom with what worked before the repair.
- Check cable seating, latch position, and part variant before replacing a second part.
Most likely cause: A post-repair symptom can involve the battery, but disturbed ribbons, latches, grounding, connector seating, or the wrong variant part are common checks before ordering again.
- Check post-repair regression, connector seating, and board-side damage before ordering.
- Choose this battery only when the part itself was torn, creased, or damaged during service.
- Correct seating, latch, or variant problems first.
- Replace the battery when the repair damaged that assembly or its flex path.
Look elsewhere when: Check the exact connector or assembly disturbed during the repair before treating the new part as failed.
Power, charging, or runtime symptoms
What you may see: People describe short runtime, charging trouble, sudden shutoff, or an iPod that will not reliably power on
Check first: Do not use a USB-to-30-pin cable as the charging test on this model. It can sync but cannot provide charge power
- Test with a known-good charger and cable before opening the iPod
- Note whether the iPod shows charging, briefly powers on, shuts down under load, or never wakes at all
- If the symptom began after service, inspect the battery connector and nearby flex paths before replacing another part
Repair considerations
Repair specialists who work on this model consistently flag these checks before replacing the battery — they help confirm the battery is the right fix and not a nearby fault:
- Try known-good cable, charger, USB port, or computer
- Replace battery
Do Not Buy This Battery Yet If...
| Situation | Start here instead |
|---|---|
| Variant, generation, or family does not match this listing | Use this battery only for iPod 3rd Generation A1040 models; choose the matching battery listing for other iPod families. |
| You see a folder icon, clicking noise, or restore failure | Follow the remaining storage, display, audio, port, or board clue instead of replacing another battery. |
| Only the screen is affected and everything else works | Start with the screen, display ribbon, backlight path, and battery-swelling inspection. |
| A symptom points to a different part | Inspect the disturbed connector, latch, ribbon, flex path, and corrosion signs before ordering another battery. |
| Recent service or connector disturbance is the main clue | Inspect and reseat the cable, latch, or connector path disturbed during service before buying another part. |
| iPod 4th Generation Click Wheel and later models — the 3G A1040 has four control buttons above the touch wheel | Use the matching 4G-or-later battery path; this page is only for the 3G A1040 battery. |
- Inspect the dock connector for bent or broken pins and clean it
- iPod 3rd Generation is a FireWire device -- USB provides data transfer only, not charging
Install Overview
Before You Start
For pre-open diagnosis, unlock Hold and use this generation's reset sequence if needed. Before opening, lock the Hold switch so the orange bar is visible, then confirm the model and variant.
Treat case opening as the highest handling risk. Work around the seams gently and stop if the shell, clips, or internal stack resist.
Do not pull the halves apart or side-load board sockets. Reseat nearby ribbons and connectors before blaming a replacement battery.
Stop charging and avoid puncturing, bending, or compressing the cell if the battery is swollen, hot, leaking, or visibly damaged.
Repair steps
Documented repair-procedure steps for replacing the battery on this model (from teardown guides; confirm against your unit before starting):
- [CAUTION] Remove the black T6 Torx screw from near the battery connector on the logic board.
Repair Guide
Repair guide summary: iPod 3rd Generation Battery Replacement.
Show all 9 installation steps
Before you open the iPod, confirm that the hold switch is in the locked setting. The orange bar should be showing, indicating hold is active.
Move an opening pick as far as possible into the gap between the plastic front and the metal back panel, on the right edge of the iPod. You may have to rock the pick back and forth to move it in farther. With the opening pick, lever up against the plastic front panel and release 5 retaining tabs. Slide the pick along the iPod edge and keep levering gently until the remaining retaining tabs release. In this step, after all five tabs along the right edge are free, the case should open easily.
The iPod case is now open, but do not separate the two halves yet. An orange ribbon cable still connects the headphone jack to the logic board. With the dock connector at the top, open the case like a book and set the rear panel beside the iPod front half.
With a plastic tool or your fingernails, carefully detach the orange headphone jack cable. Make sure to draw straight up on the connector, not the cable itself. The headphone jack connector is unusually tall. When levering, keep the lower plastic connector body attached to the ribbon cable. Lever between the connector and socket, not between the connector halves.
Raise the hard drive with one hand while carefully detaching the hard drive ribbon from the logic board. Raise the hard drive out of the iPod.
Carefully detach the white battery connector from the logic board. Pull only on the connector housing, not the cables.
In this step, removing the following screw isn't strictly necessary, but it can make the next step easier. Take out the black T6 Torx screw beside the battery connector on the logic board.
Carefully thread the battery cable around the logic board end. While freeing the cable, avoid pulling upward too far on the logic board.
Raise the battery up and out of the iPod.
After This Repair
| Check | What to do |
|---|---|
| Charge and calibrate | Charge fully from FireWire power, let it stay connected a little longer, then use it through a normal discharge and charge cycle so the meter can settle. |
| Watch the internal stack | If the case will not close easily or the battery cable must be forced, stop and verify battery dimensions and routing. |
| Still not working? | Check the dock connector, battery connector, storage load, and board power path before replacing another battery. |
Frequently Asked Questions
Use these questions to narrow the part path before ordering. They keep each answer focused on a different diagnostic or fitment decision.
What Replacement Battery (All Capacities) models does this fit?
This Replacement Battery (All Capacities) fits: M8976LL/A (10GB White), M8946LL/A (15GB White), M9460LL/A (15GB White), M9244LL/A (20GB White), M8948LL/A (30GB White), M9245LL/A (40GB White).
Do I need to solder?
No, this installation does not require soldering. Difficulty: Moderate. Estimated time: 45 minutes.
How do I know if this battery needs replacement?
Symptoms that can point to this battery include: Won't Charge, Battery Drain, Won't Turn On, Shuts Down Randomly. Check fitment, connectors, and nearby parts before treating symptoms as proof.
What first checks matter when an iPod 3rd Generation has battery or power symptoms?
Start with FireWire power and the battery path, not the board. The 3rd Generation uses a 630 mAh Li-Ion battery at 3.7 V, and local failure notes flag FireWire-only charging through the 30-pin dock; USB sync does not charge this model. For Very Low Battery, Apple-logo loops, or no power after parts work, use FireWire, reseat the battery connector, then separate PMU heat, storage, and cable symptoms.
Can storage trouble look like a bad battery?
Listen for repeated drive clicking and compare whether the symptom changes in disk mode or during restore. Reseat the hard-drive ribbon before replacing the battery again when power symptoms began after service. Listen for repeat clicking or repeated spin-up attempts before replacing storage parts. Check whether the iPod enters disk mode, restores cleanly, and is recognized by the computer. If a drive or flash adapter was just installed, recheck cable seating, adapter orientation, and formatting before buying another part. This battery may still help when runtime is poor after storage symptoms are ruled out. Choose this battery only when clicking, restore failure, or disk errors follow this part or its connection path. Check the storage path first when sad iPod, clicking, or restore failure is the main event. Check the storage cable, adapter setup, battery power stability, and board connector when the symptom changes after reseating or swapping storage.
What should I check before replacing this battery?
Inspect the battery connector and nearby ribbon paths before ordering another battery. Look for corrosion, torn flex material, or a connector that no longer clamps the battery lead cleanly. This battery helps only when the battery itself remains the isolated failure after seating checks. Check disturbed connectors first when the symptom appeared immediately after service.
When is it unsafe to keep charging this iPod?
Stop immediately if the iPod smells burnt, the dock area looks melted, the battery is hot, swollen, or leaking, or liquid exposure is involved. Disconnect power, do not charge again, and inspect the battery, dock connector, and charge path before any further troubleshooting. A damaged lithium battery is a safety problem first and a repair question second.
Why people land on this part
Use the checks above to separate this battery from nearby parts before ordering.
Some buyers search for "sad ipod, red x, clicking drive, restore loop, or disk-mode trouble", "iPod Classic 3rd Generation battery", or "USB+FireWire cable with FireWire power"; confirm the checks above point to this same part before ordering.
Some buyers search for "people describe short runtime, charging trouble, sudden shutoff, or an ipod that will not reliably power on" or "short runtime, charging trouble, sudden shutoff, or a device that will not reliably power on"; confirm the checks above point to this same part before ordering.
Also searched as: iPod 3g battery replacement, battery dies, battery life, new battery not charging, doesn't charge, 850 mAh iPod battery, charge port, dead iPod 3rd generation, FireWire-only charging iPod, battery drained, charging when plugged, ipod 3rd generation battery replacement, Battery Drain, Won't Turn On, Shuts Down Randomly, battery connector.
Battery Safety & Shipping
⚠️ Lithium-Ion / Li-Po Battery Safety. This product contains (or is) a rechargeable lithium-ion/lithium-polymer battery. Charge only with a compatible charger; don't leave it charging unattended or overnight, and unplug once fully charged. Avoid charging or storing in direct sunlight or other high-heat environments. Stop using and stop charging immediately if the battery swells, bulges, gets unusually hot, hisses, smokes, or leaks. Do not puncture, crush, bend, short-circuit, or try to "deflate" a swollen cell, and never press a lifted screen or case back down — it can rupture the cell. If electrolyte contacts your eyes, flush with clean water for 15 minutes without rubbing and seek medical care; on skin, wash with water and soap. Battery service should be done by a trained technician. Recycle through an electronics or universal-waste recycler, not household trash.
Shipping. A refurbished iPod shipped with its battery installed ships as UN3481 (lithium-ion batteries contained in equipment); a loose replacement cell shipped on its own ships as UN3480 (lithium-ion batteries). Cells have passed UN Manual of Tests and Criteria 38.3 testing.
Worth Knowing
- Same 630 mAh battery fits both thin (10/15/20GB) and thick (30/40GB) case variants.
- This model charges from FireWire power through the dock connector. USB can sync data but will not charge the battery.
- Use a powered 6-pin FireWire source, a FireWire-powered dock, or the FireWire leg of Apple's USB+FireWire cable for charging tests; a 4-pin FireWire port does not supply charging power.
- If the iPod works briefly after battery replacement, the battery installation is likely correct
- Start diagnosis with a battery replacement -- most common cause of power issues on aged units
You May Also Want
Flash storage is a common upgrade when the iPod is already open.
Related: Hard Drive IDE Ribbon CableThe IDE ribbon cable runs near the battery — inspect during replacement.
Related: Replacement Hard Drive (40GB)Use a hard drive only when restoring original-style storage; use the model's flash-storage path when a compatible adapter path is available.
