The ASTRO A50 Wireless Gen 4 (2019) is one of those gaming headsets that has aged surprisingly well. While newer wireless headsets offer lighter designs, newer connectivity standards, and longer advertised battery life, the A50 Gen 4 still delivers a combination of sound quality, wireless performance, game/chat mixing, microphone convenience, and the excellent Base Station that is difficult to replace at a low second-hand price.
Its biggest weakness in 2026 is obvious: the original internal battery may now be heavily degraded.
That does not necessarily make the headset obsolete.
For owners whose A50 still has a healthy motherboard, speakers, wireless connection, and Base Station, replacing the battery can be a much more sensible solution than replacing the entire headset.
This is where an ASTRO A50 Gen 4 battery becomes particularly useful.
Quick Verdict
The ASTRO A50 Wireless Gen 4 remains an excellent desktop gaming headset for users who value a complete wireless ecosystem rather than simple Bluetooth connectivity.
Its strongest features are:
- Excellent gaming-oriented sound
- Reliable 2.4GHz wireless connection
- Convenient Game/Voice balance controls
- Flip-to-mute microphone
- Dedicated Base Station
- Comfortable long-session design
- Customizable audio through ASTRO Command Center
- Replaceable internal battery
Its biggest disadvantages are:
- Relatively heavy at around 370g
- Internal battery eventually wears out
- Not designed primarily for mobile use
- Older hardware and software ecosystem
- Battery replacement requires partial disassembly
For a good-condition second-hand unit, however, these weaknesses are manageable.
Overall rating: 8.5/10
ASTRO A50 Gen 4 Specifications
| Feature | ASTRO A50 Wireless Gen 4 (2019) |
|---|---|
| Release year | 2019 |
| Model | A50 Wireless Gen 4 |
| Wireless | 2.4GHz |
| Driver | 40mm neodymium |
| Frequency response | 20Hz–20kHz |
| Impedance | 48Ω |
| Microphone | Unidirectional, flip-to-mute |
| Battery life | Up to 15 hours |
| Wireless range | Up to 15m |
| Headset weight | Approx. 370g |
| Base Station weight | Approx. 305g |
| Dolby Audio | Supported |
| Game/Voice balance | Supported |
| ASTRO Command Center | Supported |
| Mod Kit | Supported |
| Battery | Internal rechargeable lithium battery |
The Japanese-market 2019 specifications list the 40mm neodymium drivers, 20Hz–20kHz frequency response, 48Ω impedance, up to 15 hours of battery life, and up to 15m wireless range.
Design: Heavy, but Built for Desktop Gaming
The first thing you notice when picking up the A50 Gen 4 is its weight.
At approximately 370g, it is not a lightweight gaming headset.
However, weight alone does not determine comfort.
The A50 uses a traditional over-ear gaming-headset structure with a substantial headband and large ear cushions. The weight is reasonably distributed, making the headset more comfortable than the specification might initially suggest.
It is particularly well suited to:
- PC gaming
- Console gaming
- Discord
- Long gaming sessions
- Competitive multiplayer games
It is much less suitable as a portable everyday headset.
In other words, the A50 is designed to live on your gaming desk.
Comfort: Better Than the Weight Suggests
A good pair of ear cushions makes a significant difference.
When the A50 Gen 4 was new, its relatively substantial padding helped compensate for the headset’s weight. After several years, however, the condition of the cushions becomes increasingly important.
An older A50 may develop:
- Flattened foam
- Hardened padding
- Peeling synthetic leather
- Sweat absorption
- Increased pressure around the ears
Therefore, when buying a used A50, do not evaluate the headset only by its electronics.
The condition of the ear cushions can significantly affect the actual wearing experience.
The Base Station Is Still One of the Best Features
The Base Station is arguably the feature that makes the A50 Gen 4 more interesting than many ordinary wireless gaming headsets.
Instead of simply plugging a USB cable into the headset every night, you can place the A50 directly into its charging dock.
The Base Station provides a convenient combination of:
- Charging
- Storage
- Wireless management
- Headset status information
- Desktop integration
This creates a very simple routine:
Start the PC → put on the headset → play → return it to the Base Station.
There is no need to search for a charging cable after every gaming session.
For a headset designed primarily for desktop use, this remains an excellent concept.
Sound Quality: Still One of Its Strongest Points
The A50 Gen 4 uses 40mm neodymium drivers and is tuned primarily around gaming.
Its appeal is not simply about producing enormous bass.
Instead, the important characteristics are:
- Sound separation
- Positional information
- Environmental detail
- Clear voice reproduction
- Gaming-oriented spatial presentation
In an FPS game, for example, the ability to distinguish footsteps, gunshots, reload sounds, explosions, and environmental noise can be more important than simply producing powerful bass.
This is where the A50 still performs well.
Game/Voice Balance Is Extremely Useful
One of the A50’s most practical features is the dedicated Game/Voice balance control.
It allows the user to adjust the relative volume of:
Game audio ↔ Voice chat
This is especially useful in multiplayer games.
If your teammates are too quiet, increase the voice side.
If the game is overwhelming voice communication, adjust the balance in the opposite direction.
The feature is particularly useful for:
- FPS games
- MMO games
- Tactical games
- Cooperative games
- Discord sessions
It is one of those features that can seem unnecessary on paper but becomes difficult to give up once you use it regularly.
Microphone: Convenience Is the Main Advantage
The A50 uses a unidirectional microphone with a flip-to-mute mechanism.
Lower the microphone and it works.
Raise the microphone and it automatically mutes.
This is much more convenient than searching for a small mute button during a game.
For example, if you suddenly need to speak to someone in the room or answer a phone call, simply flipping the microphone upward immediately stops your voice transmission.
The microphone is not intended to replace a professional studio microphone, but for gaming and voice chat it remains practical.
Wireless Performance
The A50 Gen 4 uses dedicated 2.4GHz wireless connectivity rather than relying primarily on Bluetooth.
That distinction is important.
The headset is optimized for:
- PC
- PlayStation
- Xbox
- Desktop gaming
- Living-room gaming
It is not really designed as a commuter headset.
If your priority is connecting to a smartphone while traveling, a Bluetooth headset is more appropriate.
But if your priority is stable wireless gaming, the A50’s dedicated wireless architecture remains a major advantage.
Dolby Audio and Spatial Sound
The A50 Gen 4 supports Dolby-related audio features and Dolby Atmos-related functionality depending on the platform and configuration.
However, users should avoid assuming that enabling every spatial-processing option will automatically improve sound quality.
Competitive gaming is highly subjective.
Depending on the game and EQ profile, you may prefer:
- Standard audio
- Dolby processing
- A customized EQ profile
For competitive FPS gaming, the best approach is to compare the modes yourself and select the configuration that provides the clearest positional information.
ASTRO Command Center
ASTRO Command Center adds another layer of customization.
Users can adjust audio behavior and create EQ profiles for different games.
For example, an FPS profile might prioritize:
- Footsteps
- Midrange detail
- Positional cues
- High-frequency clarity
An RPG profile may benefit from:
- Deeper bass
- Environmental effects
- Music
- Cinematic sound
This makes the A50 more flexible than a headset with a fixed factory sound signature.
Battery Life: The Biggest Issue in 2026
When new, the A50 Gen 4 was rated for approximately 15 hours of battery life.
That was reasonable for a premium wireless gaming headset in 2019.
But there is an important difference between the original specification and the condition of a headset purchased in 2026.
A 2019 headset may now have several years of battery aging behind it.
Lithium batteries gradually lose capacity because of:
- Charge cycles
- Calendar aging
- Heat
- Long periods at high charge levels
- General chemical degradation
Therefore, when buying a used A50, asking the seller whether the battery is “good” is not enough.
Ask:
How many hours does it actually last after a full charge?
That answer is much more useful.
When Should You Replace the A50 Battery?
Several symptoms indicate that the internal battery is reaching the end of its useful life.
1. Battery life has fallen dramatically
A headset that once lasted around 15 hours but now lasts only a few hours has clearly experienced significant degradation.
2. Battery percentage drops unusually quickly
If the displayed charge falls rapidly during normal use, the battery’s usable capacity may be substantially reduced.
3. The headset shuts down shortly after charging
This is another strong indication of reduced battery capacity.
4. The headset must remain on the Base Station
If the A50 works normally while docked but quickly dies after being removed, battery replacement should be considered.
5. The battery is swollen
This is a safety issue rather than a performance issue.
Stop charging and using the headset and replace the damaged battery appropriately.
Why an ASTRO A50 Gen 4 Battery Replacement Makes Sense
The biggest advantage of repairing an older A50 is that the battery is not the only valuable component inside the headset.
If the following components are still working properly:
- Speakers
- Mainboard
- Wireless system
- Microphone
- Charging system
- Base Station
then replacing a worn battery can extend the useful life of the entire headset.
A replacement A50 battery can therefore be a more economical option than purchasing another complete premium gaming headset.
This is particularly attractive when the headset itself has excellent sound and functionality but simply cannot hold a charge anymore.
ASTRO A50 Battery Part Numbers: 533-000169 and 533-000191
Owners of the 2019 A50 Gen 4 may encounter replacement batteries listed under numbers such as:
- 533-000169
- 533-000191
Third-party replacement batteries may use these numbers when describing compatibility with the A50 Gen 4.
However, buyers should not rely on the words “ASTRO A50 Battery” alone.
The A50 has gone through multiple generations, and battery designs are not necessarily interchangeable between them.
Always confirm that the replacement is specifically intended for:
ASTRO A50 Wireless Gen 4 / 2019
rather than simply searching for:
A50 battery
Battery Replacement Difficulty
Difficulty: Moderate to Moderately High
Replacing the battery is possible for an experienced DIY repairer, but this is not a simple plug-and-play external battery swap.
The repair requires partial disassembly of the right earcup.
The general process involves:
- Removing the right ear cushion
- Removing the speaker grille/filter
- Removing speaker mounting screws
- Carefully lifting the speaker assembly
- Removing motherboard screws
- Disconnecting the battery connector
- Separating the old battery from its adhesive
- Installing the replacement
- Reconnecting the battery
- Reassembling and testing the headset
The exact repair procedure should be followed carefully because the speaker assembly and internal wiring can be damaged by excessive force.
What Tools Do You Need?
A basic repair setup should include:
- Phillips #00 screwdriver
- Plastic pry tool
- Tweezers
- ESD-safe tools where possible
- Replacement battery
- Clean workspace
- Small container or magnetic mat for screws
The screws are small, so keeping them organized is important.
How to Replace the Battery
Step 1: Power Down the Headset
Turn the A50 off and remove it from the Base Station.
Do not work on the headset while it is charging.
Reducing the battery charge before opening the device can also reduce the amount of stored energy involved in a repair.
Step 2: Remove the Right Ear Cushion
The battery is located inside the right earcup.
Carefully release the ear cushion from its mounting points.
Avoid pulling aggressively.
Step 3: Remove the Speaker Filter
Use a plastic pry tool around the edge.
Avoid using a metal screwdriver as a pry tool because it can damage the plastic components or leave visible marks.
Step 4: Remove the Speaker Screws
The 2019 repair procedure uses a Phillips #00 screwdriver to remove the speaker mounting screws.
Once the screws are removed, do not immediately pull the speaker assembly away.
Internal wires remain connected.
Step 5: Access the Mainboard
The motherboard must be exposed so that the battery connector can be disconnected.
Remove the appropriate mounting screws carefully and keep track of their locations.
Step 6: Disconnect the Battery
Disconnect the battery connector from the board before attempting to remove the battery itself.
This is particularly important because the battery should not be mechanically manipulated while it remains electrically connected to the headset.
Step 7: Remove the Old Battery
The battery is secured with adhesive.
Use a plastic tool to gradually separate it.
Never insert a sharp metal object underneath a lithium-polymer battery.
Do not:
- Puncture the cell
- Fold it sharply
- Crush it
- Short its terminals
- Pull aggressively on the battery wires
A damaged lithium battery can become a serious fire hazard.
Step 8: Install the Replacement Battery
Before installation, verify:
- Voltage
- Physical dimensions
- Connector
- Polarity
- Battery protection circuitry
- Gen 4 compatibility
A suitable ASTRO A50 battery replacement should match the headset’s electrical and physical requirements.
Step 9: Reconnect and Inspect
Reconnect the battery connector and check that:
- The connector is fully seated
- No wires are trapped
- The battery is not being compressed
- The cell is lying flat
Then reinstall the internal components.
Step 10: Test Before Final Assembly
This is one of the most useful repair habits.
Before completely finishing the assembly, test:
- Power
- Wireless connection
- Left and right audio
- Microphone
- Game/Voice balance
- Base Station detection
- Charging
- Battery status
Only after everything works correctly should the final assembly be completed.
What About Battery Calibration?
Battery calibration should not be confused with “activating” a lithium battery.
After installing a replacement, the battery gauge may need to relearn the relationship between the reported charge level and actual battery capacity.
A complete charge/discharge cycle may be used as part of a calibration procedure.
However, repeatedly draining a lithium battery completely is not recommended as a normal long-term charging habit.
The objective is accurate battery-state reporting, not repeated deep discharge.
1000mAh vs. 1500mAh Replacement Batteries
This is another important consideration when choosing a replacement.
A 1000mAh replacement is generally the safer choice when your priority is compatibility and predictable installation.
Advantages include:
- Closer to the original capacity
- Easier compatibility verification
- Lower risk of physical fit problems
A 1500mAh third-party battery may advertise approximately 50% more capacity, but that does not automatically mean 50% longer real-world battery life.
Actual performance depends on:
- Cell quality
- Real capacity
- Internal resistance
- Protection circuit
- Connector
- Physical dimensions
- Battery-management behavior
For a straightforward repair, I would prioritize a correctly specified replacement over the largest advertised capacity.
Do Not Confuse Gen 4 With Older A50 Batteries
This is one of the most important purchasing warnings.
Search results often group multiple generations under the generic term “ASTRO A50 battery.”
But the A50 has several generations.
For example, some replacement batteries sold for older 2014/2016 A50 models are not intended for the 2019 Gen 4.
A replacement battery may therefore have the right-looking voltage and physical appearance but still have the wrong connector or compatibility.
The correct search term should include:
A50 Gen 4 battery
rather than simply:
A50 battery
When in doubt, confirm the exact headset generation before ordering.
What About the 3.7V 800mAh iFixit Battery?
This is another area where buyers can easily become confused.
Some replacement batteries marketed for the A50 are rated at 3.7V and 800mAh and use the SRP603443 designation.
That battery is associated with older 2014/2016 A50 models, rather than being a dedicated 2019 Gen 4 replacement.
Therefore, owners of the Gen 4 should not automatically purchase an older A50 replacement simply because the product title contains “A50.”
Generation compatibility matters.
Software Still Matters on a Used A50
A second-hand A50 should be tested as a complete system.
Do not only check whether it produces sound.
Test:
- PC recognition
- Base Station recognition
- Firmware behavior
- EQ configuration
- Game/Voice balance
- Microphone
- Wireless connection
- Charging
The ASTRO Command Center software remains an important part of the A50 experience.
A headset with perfect speakers but a malfunctioning Base Station or wireless system may not be a good second-hand purchase.
Used ASTRO A50 Gen 4 Buying Checklist
If you are considering buying a used 2019 A50, check the following.
1. Battery
Ask for actual runtime after a full charge.
2. Base Station
Confirm that the headset charges and is recognized correctly.
3. Left and Right Channels
Play music and verify both sides.
4. Microphone
Test both normal operation and flip-to-mute.
5. Game/Voice Balance
Make sure the mixing function works.
6. Wireless Connection
Walk around the room and check for unexpected disconnects.
7. Ear Cushions
Severely worn cushions should be considered an additional replacement cost.
8. Headband
Inspect for:
- Cracks
- Loose parts
- Plastic fatigue
- Broken adjustment components
A cheap used A50 with a worn battery can still be a good deal.
A cheap A50 with a damaged motherboard and defective Base Station is a very different proposition.
Is the ASTRO A50 Gen 4 Still Worth Buying in 2026?
Yes—but only under the right conditions.
If you are buying a used A50 because you want a lightweight modern headset for travel, there are better choices.
But if you want a dedicated desktop gaming system with:
- Wireless audio
- Base Station charging
- Game/Voice mixing
- Good gaming sound
- Flip-to-mute microphone
- Custom EQ
- Repairable battery
the A50 Gen 4 remains attractive.
The key is to buy based on condition, not simply age.
Who Should Buy It?
The A50 Gen 4 makes the most sense for:
- PC gamers
- Console gamers
- FPS players
- Discord users
- Players who spend many hours at a desk
- People who appreciate dedicated wireless charging docks
- DIY users comfortable with battery replacement
- Buyers looking for good value on the used market
It is less attractive for:
- Mobile users
- Travelers
- People who prioritize ultra-light headphones
- Users who require modern Bluetooth features
- Anyone unwilling to deal with an aging internal battery
Final Rating
| Category | Score |
|---|---|
| Gaming sound | 9/10 |
| Positional audio | 9/10 |
| Game/Voice control | 9.5/10 |
| Microphone | 8/10 |
| Wireless stability | 8.5/10 |
| Base Station | 9.5/10 |
| Comfort | 8.5/10 |
| Battery life when new | 8/10 |
| Battery life with an old cell | 5/10 |
| Repairability | 8/10 |
| Portability | 5.5/10 |
| Used-market value | 8.5/10 |
| Overall | 8.5/10 |
Final Verdict: Repair the Good Ones
The ASTRO A50 Wireless Gen 4 (2019) is no longer a cutting-edge gaming headset, but that does not make it obsolete.
Its greatest strength in 2026 is actually the maturity of its design.
The headset combines:
Wireless audio + Game/Voice mixing + Base Station + microphone + customizable EQ
into a system that remains highly convenient for desktop gaming.
Its weakest component is also predictable: the internal lithium battery.
If your A50 still has good speakers, a healthy motherboard, working wireless connectivity, and a functional Base Station, there is little reason to discard the entire headset simply because the original battery has aged.
A properly selected A50 Gen 4 replacement battery can restore the headset’s practical usability at a fraction of the cost of replacing the complete system.
For anyone shopping for a used unit, the same principle applies: a worn battery is not necessarily a deal-breaker; a damaged Base Station or motherboard is much more serious.
In short, the A50 Gen 4 is a good example of why repairability matters. A seven-year-old premium gaming headset with a degraded battery can still have plenty of useful life left—provided the core electronics are healthy and the correct replacement battery is used.
The important rule is simple:
Do not buy a battery merely because the listing says “ASTRO A50.” Confirm that it is specifically compatible with the 2019 A50 Wireless Gen 4.