B31N1912 C31N1912 Battery for ASUS VivoBook 14
4.3Editor score
42Wh capacity for daily use
UL CE FCC certified safety
Includes installation screwdrivers
10 Best ASUS Laptop Battery Replacement (October 2026) Expert Guide
When your ASUS laptop starts dying unexpectedly, a reliable battery replacement can restore mobility and productivity. Finding the right match requires checking compatibility, voltage, and capacity to ensure safe operation with your specific device model.
We evaluated ten highly rated replacement batteries based on customer feedback, technical specifications, and seller reliability. Each option was reviewed for build quality, safety certifications, and compatibility with popular ASUS series including VivoBook and TUF Gaming laptops.
Every selection below includes detailed specs, pros, and cons to help you make an informed decision. Please note that pricing and availability fluctuate regularly, so verify current details before finalizing your purchase to ensure you get the best value.
Top 3 Picks for Best ASUS Laptop Battery Replacement
Fancy Buying C21N1347 Battery for Asus X555
4.4Editor score
5000mAh high capacity
Li-polymer stable chemistry
Works with X555 series
C41N1731-2 Battery for ASUS ROG Strix G15
4.6Editor score
67Wh extended runtime capacity
BattArmor safety system
High-capacity 5.0 cells
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Top 10 Best ASUS Laptop Battery Replacement in 2026 Compared
The table below provides a side-by-side look at ten top-rated replacement batteries. Compare part numbers, voltages, and compatible models to find the exact match for your ASUS laptop quickly and accurately.
ProductsSpecificationsEditor scorePrice
Best Budget
B31N1912 VivoBook 14
11.55V 42Wh
B31N1912 C31N1912
VivoBook E410 L410
3-cell Li-ion
4.3Editor score
Editor's Choice
B31N1912 VivoBook 14 Polymer
11.55V 42Wh
3ICP5/57/80
VivoBook E510 F414
3-cell Polymer
4.3Editor score
Editor's Choice
C21N1347 X555 Series
7.6V 38Wh
C21N1347 2ICP4
X555 X555L Series
3-cell Li-polymer
4.4Editor score
A32-K55 A45 A55 Series
11.1V 5200mAh
A32-K55 A41-K55
A45 A55 K55
3-cell Li-polymer
4.3Editor score
B31N1912 VivoBook 14 15.6
11.55V 42Wh
L410MA-BV058TS
VivoBook R522MA
3-cell Polymer
4.3Editor score
B31N1726 TUF Gaming FX504
11.4V 48Wh
B31N1726 A41LK9H
TUF FX504 FX80
3-cell Li-polymer
4.3Editor score
B31N1912 VivoBook 14 TREE.NB
11.55V 42Wh
C31N1912 Part
VivoBook E410KA
3-cell Li-ion
4.3Editor score
C41N1837 ROG Zephyrus GA502
15.4V 76Wh
C41N1837 0B200
ROG Zephyrus GU502
High-capacity 6
4.2Editor score
B31N1912 VivoBook 14 Premium
11.55V 42Wh
TREE.NB Certified
VivoBook F414MA
3-cell Li-ion
4.4Editor score
C41N1731-2 ROG Strix G15
15.4V 67Wh
C41N1731-2
ROG Strix G15 G17
BattArmor Safety
4.6Editor score
1. B31N1912 VivoBook 14 – Best Overall ASUS Laptop Battery Replacement
B31N1912 VivoBook 14
11.55V 42Wh
3-cell Li-ion
Certified safe UL CE
Includes installation tools
This B31N1912 replacement targets the popular VivoBook 14 series with a solid 42Wh capacity. Rated at 4.3 stars it balances cost and performance well for everyday users needing reliable power on the go without breaking the budget.
Pros
- Strong customer support
- Fits many VivoBook models
- Good price point
- Stable performance
- Safe cycling limits
Cons
- Return window closes early
- May need calibration
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The battery uses grade A cells promising up to 500 recharge cycles over its life. Sellers include screwdrivers and provide 24×7 email support to guide you through installation and troubleshooting should any recognition issues arise initially.
While the return window closes after one month the seller encourages direct contact for any defects. Users note that discharging to 5 percent before cycling helps wake up the battery effectively for consistent runtime results.
Ideal for VivoBook owners on a tight budget this pick restores mobility without complex setup. Check your part number carefully against the model list to ensure a perfect fit for your specific device configuration.
Extended Runtime for Daily Tasks
With 42Wh capacity this battery supports web browsing document editing and media consumption for hours without needing a wall outlet nearby.
Safety Certifications for Peace of Mind
Certified by UL CE FCC and RoHS standards the battery includes protections against short circuits overheat and overload for safe long-term use.
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2. B31N1912 VivoBook 14 Polymer – Reliable Power for VivoBook
B31N1912 VivoBook 14 Polymer
11.55V 42Wh
3ICP5/57/80
Fits E510 F414
Includes user manual
This polymer battery matches the B31N1912 spec but emphasizes a flexible design suitable for thin laptops. It covers a wide range of VivoBook models including E510 and F414 variants with strong support policies for buyer confidence.
Pros
- Auxiliary installation tool
- 60-day return policy
- Many model matches
- Stable voltage
- Compact design
Cons
- Return window varies
- Installation takes care
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Packaging includes an auxiliary installation tool to simplify the swap process. The 12-month replacement warranty provides security against early failures while the 60-day return window offers flexibility if the fit is not right.
Users should note that the return window closes one month after receipt so act quickly if issues appear. Proper connection checks and battery cycling ensure the system recognizes the new power source correctly.
Choose this option if you need a dependable replacement for newer VivoBook 14 models. Verify your model number against the extensive compatibility list to avoid returns due to mismatched part numbers.
Simplified Installation Process
Included tools and user manual reduce the technical steps needed to replace the old battery with this fresh unit safely.
Extended Warranty Protection
A 12-month replacement warranty covers manufacturing defects giving you extra confidence in the long-term value of this purchase.
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3. Fancy Buying C21N1347 X555 Series – Best for Legacy ASUS Models
Fancy Buying C21N1347 X555 Series
7.6V 38Wh
5000mAh capacity
Works with X555
CE FCC safety
Designed for older X555 and related series this battery delivers a robust 5000mAh capacity to extend usage time. Rated 4.4 stars it is a top choice for users keeping legacy machines running efficiently without upgrading hardware.
Pros
- High 5000mAh rating
- Li-polymer safety
- Affordable price
- Built-in protection
- Good for older models
Cons
- Lower voltage than modern
- Calibration may needed
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Li-polymer chemistry ensures stable discharge and safe operation under normal conditions. The battery features built-in circuit protection to prevent overheat and short circuits making it a secure choice for daily use.
Discharge to 10-20 percent before recharging helps optimize the cells for best performance. While voltage is lower at 7.6V it matches the original design expectations for these specific laptop chassis.
If your X555 needs power back this option is reliable and budget friendly. Confirm your specific model variant like X555LA or X555LD matches the compatibility list before ordering to ensure a seamless swap.
Revives Older Laptops
This replacement extends the life of older ASUS laptops allowing continued use for school or work without buying a new device.
Stable Chemistry for Safety
Li-polymer construction resists swelling better than older types providing consistent power and safer long-term operation.
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4. Fancy Buying A32-K55 – Best Value for A45 A55 Laptops
Fancy Buying A32-K55 A45 A55 Series
11.1V 5200mAh
Fits A45 A55
Overcurrent protection
30-day refund
This unit targets older A45 A55 and K55 series with a 5200mAh capacity that supports full work sessions. It features overcurrent and anti-overcharge protection to keep the laptop safe during extended power usage.
Pros
- Strong capacity
- Wide model range
- Fast charge capable
- Low power use
- Quick support response
Cons
- Return policy strict
- Older model focus
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The battery promises low power consumption allowing longer runtimes between charges. Support includes a 24-hour email response for any issues ensuring buyers can resolve compatibility or installation questions quickly.
Use CTRL plus F to find your model in the long compatibility list before purchasing. A 12-month warranty covers defects and the 30-day full refund gives time to verify functionality upon arrival.
Choose this if you own a legacy A45 or A55 laptop needing power restoration. Check your exact model code to confirm fit as this battery covers a broad range of classic chassis designs.
Low Power Consumption
Optimized circuits reduce idle drain letting your laptop hold charge longer when not in active use.
Robust Safety Circuitry
Multiple protection layers guard against overcharge short circuits and overheating for secure daily use.
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5. B31N1912 VivoBook 14 15.6 – Best Fit for E410 E510 Models
B31N1912 VivoBook 14 15.6
11.55V 42Wh
DF112 L510MA
Installation tool included
60-day return policy
Targeting VivoBook 14 and 15.6 models this battery includes specific variants like L510MA-WB04 with precise fitment. It shares the same 42Wh capacity and 11.55V specs as other top VivoBook replacements ensuring consistent power.
Pros
- Fits wide VivoBook range
- Stable 42Wh
- Auxiliary tool set
- Support available
- Safe cycle limits
Cons
- Return window one month
- May need cycle check
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Packaging includes an auxiliary tool and user manual to help with the swap. The 12-month replacement warranty backs the product while the 60-day return policy adds flexibility for new buyers.
Contact the seller via ask a question if you face issues after the return window closes. Proper battery cycling after installation maximizes runtime and ensures the system registers the new cells correctly.
If your laptop model matches the detailed list this is a reliable pick for restoring mobility. Double check the specific suffix codes like EK017TS to avoid compatibility issues when ordering.
Precise Model Matching
Detailed compatibility ensures the battery fits snugly and electrically matches your exact VivoBook configuration.
Support for New Buyers
Email support and user manuals help first-time replacements complete the swap confidently and safely.
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6. B31N1726 TUF Gaming – Best Gaming Laptop Battery
B31N1726 TUF Gaming FX504
11.4V 48Wh
Fits FX504 FX80
Temperature control
Overcurrent protection
This battery serves TUF Gaming laptops including FX504 and FX80 series with a 48Wh capacity. It supports thermal control and overcurrent protection to keep the laptop stable during gaming or heavy compute tasks.
Pros
- Fits TUF models well
- 48Wh capacity
- Thermal safeguards
- OEM standard
- 12-month warranty
Cons
- Gaming power draw high
- Return policy strict
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Constructed with top quality materials it meets OEM standards for performance and safety. The 12-month warranty ensures coverage for defects while the 30-day full refund allows testing for fitment issues.
Users seeking extended gaming sessions without a charger will benefit from the higher Wh rating. Verify your part number like B31N1726 to ensure full compatibility with your gaming chassis.
Choose this for a dependable upgrade if you rely on your TUF laptop for portable performance. Contact support within 24 hours if you encounter any registration or charging anomalies after install.
Thermal Control
Integrated temperature control functions reduce overheating risks during high-load gaming sessions.
OEM Standard Compliance
Meeting OEM standards ensures reliable charging speeds and safe power delivery for your gaming laptop.
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7. TREE.NB B31N1912 – Safe Choice for VivoBook
B31N1912 VivoBook 14 TREE.NB
11.55V 42Wh
Rigorously tested
Fits R522MA
Stable current
TREE.NB ensures this battery undergoes rigorous testing for voltage and capacity accuracy. It fits E410MA L410MA and R522MA models with stable current and low self-discharge for reliable power when needed.
Pros
- Rigorously tested
- Stable current
- Low self-discharge
- Service support
- Good value
Cons
- Need to contact support
- Check compatibility
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The seller emphasizes solutions for any dissatisfaction or issues. Contacting them for questions ensures you get personalized advice on installation and warranty claims to maintain a smooth experience.
Safety features include circuit protection and guaranteed battery life expectations. This focus on quality control helps prevent early failures common with cheaper alternatives on the market.
Pick this if you prioritize testing and stable performance for your VivoBook. Verify your part number matches the list to avoid returns and ensure you get the full benefit of the testing.
Low Self-Discharge
Reduced energy loss over time means the battery stays ready to power your laptop even after sitting unused.
Responsive Service Support
Dedicated support helps resolve any concerns quickly keeping your laptop operational without long delays.
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8. C41N1837 ROG Zephyrus – Premium ROG Battery
C41N1837 ROG Zephyrus GA502
15.4V 76Wh
Fits GA502 series
500 charge cycles
High quality boards
Designed for ROG Zephyrus GA502 and related series this battery offers a high 76Wh capacity. Grade A cells promise fast charges and low power consumption supporting longer gaming and creative workflows on the go.
Pros
- 76Wh high capacity
- Grade A cells
- Overcharge protection
- 24h email support
- Multiple models fit
Cons
- Premium price
- Need to check fit
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Multiple safety protections include overcharge short circuit and temperature safeguards to protect your investment. The 12-month replacement and 30-day refund policy align with standard expectations for premium accessories.
Note that this model supports many variants so cross check your specific SKU before purchasing. The 24-hour email support ensures you can get answers quickly if you face compatibility hurdles.
Choose this if your ROG laptop demands high capacity power. The advanced board assembly helps ensure stable output for graphics tasks requiring sustained performance without throttling.
High-Capacity 76Wh
The large capacity supports intensive tasks like gaming and video editing for longer periods without a plug.
Grade A Cell Quality
Top tier cells maintain charge better over time extending the overall lifespan of the replacement unit.
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9. TREE.NB B31N1912 Premium – Safe Certified Pick
B31N1912 VivoBook 14 Premium
11.55V 42Wh
CE UL certified
3-cell Li-ion
Strict guidelines
This premium option from TREE.NB brings CE and UL safety certifications for added assurance. It fits VivoBook E410M and E510MA models with a stable 42Wh capacity designed to meet strict environment safety guidelines.
Pros
- CE and UL certified
- High rating 4.4
- Stable voltage
- Environment compliant
- Reinstall tips
Cons
- Reinstall might needed
- Calibration cycle
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Installation may require checking the interface connection if the system does not recognize the new unit initially. Discharging to 10-20 percent before cycling helps wake up the battery for optimal performance.
The seller emphasizes strict compatibility guidelines to reduce the chance of errors. With a 4.4 rating it reflects strong user satisfaction with both fit and runtime performance in daily usage scenarios.
Select this if safety certification is a priority for your purchase. Confirm your exact model against the compatibility list to ensure full support and avoid any issues with part matching.
Safety Certifications
CE and UL marks confirm the battery meets rigorous safety standards for consumer electronics.
Environment Compliant
Standards compliance ensures the materials and processes meet modern environmental safety requirements.
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10. C41N1731-2 ROG Strix – Best ROG Battery Battery
C41N1731-2 ROG Strix G15
15.4V 67Wh
BattArmor safety
High-capacity cells
Guide included
This C41N1731-2 battery serves ROG Strix G15 G17 series with a solid 67Wh capacity and BattArmor safety system. It offers advanced quality with 5.0 technology upgrades for safer and longer lasting performance.
Pros
- 67Wh runtime capacity
- BattArmor protection
- Rated 4.6 stars
- Installation tools
- 24-hour service
Cons
- Higher price tier
- Check model variants
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Superior safety features include overcharge circuit overload and temperature protection to keep your laptop safe. The package includes installation tools and a service manual to guide users through the swap confidently.
With a 4.6 rating users trust the reliability of this premium unit. It is designed for high-power laptops needing sustained performance without rapid draining during work or play.
Choose this if you own a Strix G series and prioritize safety and capacity. Confirm your exact model variant to ensure full compatibility with your specific laptop configuration.
BattArmor Safety System
Advanced protections guard against electrical faults keeping your laptop and battery running safely.
Installation Tools Included
Included guides and tools simplify the replacement process reducing installation complexity.
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Buying Guide – How to Choose the Best ASUS Laptop Battery Replacement
Selecting the right replacement involves more than matching a model name. This guide outlines key factors to consider before you buy to ensure safety performance and value.
Compatibility and Part Numbers
Always cross reference your laptop model with the battery part number. Many VivoBook and TUF models share names but use different internal connectors so check the exact code like B31N1912 before ordering.
Confirm the match with your current battery label or service manual to avoid returns.
Voltage and Capacity
Voltage must match exactly such as 11.55V for VivoBook or 15.4V for ROG. Capacity in Wh or mAh determines runtime so pick one close to the original specs for balanced performance.
A capacity within 5 percent of original ensures your system recognizes the power source correctly.
Cell Count and Chemistry
Most replacements use 3-cell or 6-cell designs. Polymer or Li-ion chemistries vary by model so match the original type to avoid compatibility issues with the charging circuit.
Check the product specs to ensure the cell count aligns with your laptop model.
Safety Certifications
Look for UL CE FCC or RoHS certifications which indicate tested protection against short circuits and overheating. These standards reduce risk during daily charging cycles.
Certified batteries are safer for long-term use and reduce liability risks.
Warranty and Return Window
A 12-month warranty provides protection against defects while a 30 to 60-day return window gives time to test the new unit. Sellers with clear policies save time if issues arise.
Prioritize brands offering direct support for troubleshooting compatibility problems.
Installation Tools
Some packages include screwdrivers or guides to simplify the swap process. These extras help if you lack technical experience replacing the internal components.
Check if tools are included before buying a bare battery if you plan DIY install.
Customer Support
Responsive email support or help centers ensure you can ask questions if the battery is not recognized. Look for sellers who reply within 24 hours for quicker resolution.
Good support reduces downtime when troubleshooting initial setup issues.
Price and Value
While cheaper options exist they may lack safety protections or accurate capacity. Balance price against certified specs and warranty length to choose a battery that lasts longer.
Focus on long-term reliability rather than lowest upfront cost.
How to Use and Care for Your ASUS Laptop Battery Replacement
Begin by shutting down your laptop and unplugging it from any power source. Remove the bottom panel carefully using a screwdriver to access the old battery connector.
Unplug the existing battery connector gently without forcing it. Attach the new battery connector firmly and screw the new battery into place before reattaching the panel.
Charge the new battery to 100 percent then let it drain to 10 to 20 percent before charging again. This cycle helps calibrate the power management system for accurate readings.
Frequently Asked Questions
How do I know which battery fits my ASUS laptop?
Find the model number on the bottom of your laptop and check the existing battery label for a part number like B31N1912. Compare this with the compatibility list provided in the product description to ensure a match.
Is it safe to use third-party battery replacements?
Yes if they carry safety certifications like UL CE or FCC. These ensure the battery includes protections against overheat and short circuits. Always buy from sellers offering warranties for extra security.
Do I need to calibrate the new battery?
Yes. Discharge the new battery to about 10 percent then charge it fully. Repeat this cycle three to four times so the system recognizes the true capacity and reports accurate battery life.
How long does a replacement battery last?
Quality cells can last up to 500 recharge cycles. With normal use this translates to about two to three years depending on usage frequency and how you maintain charging habits.
What if the laptop does not recognize the new battery?
Check the connector is fully seated then reboot the laptop. If that fails discharge and cycle the battery to wake it up. Contact seller support if the issue persists for further help.
Does removing the battery when plugged in extend life?
Not on most modern laptops which use integrated batteries. Keeping the laptop plugged in with moderate heat is fine. Use a cooling pad to reduce stress on the battery during heavy tasks.
Final Thoughts on Choosing the Best ASUS Laptop Battery Replacement
The top picks like the B31N1912 for VivoBook and C41N1731-2 for ROG offer reliable power and safety. Each choice balances cost with performance to suit different user needs.
Prioritize safety certifications and warranty coverage when comparing options. These factors ensure your battery is safe to use and backed by support if issues arise.
Prices and availability change quickly so verify the current details on Amazon before purchasing. Always double check your exact model compatibility to ensure the best fit.