B31N1912 C31N1912 Laptop Battery Replacement
4.3Editor score
42Wh capacity for daily use
Fits multiple VivoBook series
Includes installation screwdrivers
10 Best ASUS Laptop Battery Replacement (October 2026) Expert Guide
Finding the right power source for your notebook is essential for productivity. A reliable ASUS Laptop Battery Replacement ensures your device lasts through long work sessions without interruption. Choosing the correct model prevents compatibility issues and keeps your machine running smoothly.
We evaluated ten top-rated options based on capacity, compatibility, and safety features. Each product was selected for its ability to match original specifications while offering solid value. This list covers various ASUS series including VivoBook, TUF Gaming, and ROG Strix models.
Each pick below shows detailed specs, pros, and cons to help you decide. Prices and availability change frequently so verify current listings before buying. Our goal is to simplify your search for a dependable power upgrade for your trusted laptop device.
Top 3 Picks for Best ASUS Laptop Battery Replacement
Fancy Buying C21N1347 Laptop Battery Replacement
4.4Editor score
5000mAh high capacity
Compatible with X555 series
CE and FCC certified
C41N1731-2 Battery Replacement
4.6Editor score
67Wh high capacity
BattArmor safety system
Fits ROG Strix G15 G17
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Top 10 Best ASUS Laptop Battery Replacement in 2026 Compared
This side-by-side comparison highlights key differences across all ten selected products. Review voltage, capacity, and model compatibility to find the exact match for your device needs.
ProductsSpecificationsEditor scorePrice
Best Budget
B31N1912 C31N1912 Replacement
11.55V 42Wh Capacity
Fits VivoBook E410 L410
Li-ion 3-cell Battery
24×7 Email Support
4.3Editor score
Editor's Choice
B31N1912 Battery for VivoBook
11.55V 42Wh Capacity
Fits VivoBook E410 L410
Polymer 3-cell Battery
12 Months Replacement Warranty
4.3Editor score
Editor's Choice
Fancy Buying C21N1347 Replacement
7.6V 5000mAh Capacity
Fits X555 X555L Series
Li-polymer 3-cell Battery
CE FCC Safety Certified
4.4Editor score
Fancy Buying A32-K55 Battery
11.1V 5200mAh Capacity
Fits A45 A55 K55 Series
Li-polymer Battery Type
12 Months Warranty
4.3Editor score
B31N1912 Battery for VivoBook
11.55V 42Wh Capacity
Fits VivoBook E410 L410
Polymer 3-cell Battery
12 Months Replacement Warranty
4.3Editor score
B31N1726 Battery for TUF
11.4V 48Wh Capacity
Fits FX504 FX80 TUF
Li-polymer 3-cell Battery
12 Months Warranty
4.3Editor score
TREE.NB B31N1912 Replacement
11.55V 42Wh Capacity
Fits VivoBook E410 L410
Li-ion 3-cell Battery
Email Support Available
4.3Editor score
C41N1837 Battery for ROG
15.4V 76Wh Capacity
Fits ROG Zephyrus GA502
Grade A Cells
12 Months Replacement
4.2Editor score
TREE.NB B31N1912 Replacement
11.55V 42Wh Capacity
Fits VivoBook E410 L410
Li-ion 3-cell Battery
CE UL Certified
4.4Editor score
C41N1731-2 Battery for ROG
15.4V 67Wh Capacity
Fits ROG Strix G15 G17
BattArmor Safety System
24-hour Support
4.6Editor score
1. B31N1912 C31N1912 Replacement – Best Budget Choice
B31N1912 C31N1912 Replacement
11.55V 42Wh
Li-ion 3-cell
Fits VivoBook 14
24×7 Email Support
This battery offers an affordable solution for VivoBook owners seeking reliable power. It holds a solid 4.3 rating from verified buyers who appreciate its straightforward performance. The design fits seamlessly into your existing chassis without requiring permanent modifications.
Pros
- Affordable pricing
- Covers many models
- Includes tools
- Safe certified
Cons
- Return window closes early
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Key strengths include the broad compatibility with E410 L410 and F414 series laptops. Users report that the included screwdrivers make installation straightforward even without technical experience. The 42Wh capacity ensures enough runtime for standard daily tasks like web browsing and document editing.
One trade-off is the limited return window which closes one month after delivery. This requires you to test the battery immediately upon receipt to confirm functionality. However the product standards are strict so early failures are rare and support is available via email.
If you need a cost-effective power update for your VivoBook this is a strong recommendation. It balances price with necessary safety certifications like UL and CE. Check your exact model number before ordering to ensure a perfect fit.
Value for Money
Competitive pricing makes this an ideal first choice for budget-conscious buyers.
Installation Ease
Included tools simplify the process for users without specialized repair experience.
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2. B31N1912 Battery for VivoBook – Strong Alternative
B31N1912 Battery for VivoBook
11.55V 42Wh
Polymer 3-cell
Fits E410 L410
12 Months Warranty
This option provides a polymer-based solution for VivoBook 14 models. It matches the original specs closely and maintains a solid 4.3 rating across reviews. The packaging includes a manual that guides you through safe installation steps.
Pros
- High compatibility
- 12 months warranty
- Polymer cells
- User manual included
Cons
- Similar price to competitors
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Its compatibility list extends to many sub-models including E410MA L410MA and F414MA series. The 12-month replacement policy offers better security than shorter-term guarantees. Users note that the battery charges efficiently and holds power well during daily use.
The price point is comparable to other listings so value depends on warranty preference. Some buyers may find the return window slightly restrictive as noted in the product policy. Ensure you contact the seller within the allowed timeframe if issues arise.
Choose this if you want a standard replacement with extra warranty support. It works well for general office or student use cases. Verify your part number matches B31N1912 before proceeding.
Warranty Coverage
A full year replacement warranty adds peace of mind for long-term users.
User Guidance
Included manuals help first-time installers avoid common connection errors.
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3. Fancy Buying C21N1347 Replacement – Editor's Choice
Fancy Buying C21N1347 Replacement
7.6V 5000mAh
Li-polymer 3-cell
Fits X555 Series
CE FCC Certified
This battery stands out for its higher rating of 4.4 among reviewed options. It targets older X555 and A555 series laptops with a robust 5000mAh capacity. The build quality meets strict CE and FCC standards ensuring reliable performance.
Pros
- Highest rating in list
- High capacity cells
- Wide model fit
- Safety certified
Cons
- Specific older models
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Key strengths include the substantial capacity which supports longer unplugged sessions than standard units. It fits specific part numbers like C21N1347 and 2ICP4/63/134 accurately. Users appreciate the stable power output and quick charge times.
The main limitation is that it only fits specific older chassis models. If your laptop is newer you will need a different battery variant. Still for those with compatible devices it offers excellent value and consistent reliability.
For X555 owners looking for a trusted power update this is the top pick. Its quality control ensures minimal risk of early failure. Always double-check your model number before purchase to confirm fit.
Capacity Advantage
5000mAh capacity delivers extended runtime compared to standard replacement units.
Safety Standards
CE and FCC certifications confirm the battery meets strict safety protocols.
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4. Fancy Buying A32-K55 Battery – Versatile Fit
Fancy Buying A32-K55 Battery
11.1V 5200mAh
Li-polymer
Fits A45 A55
12 Months Warranty
This battery supports a wide range of ASUS older models including A45 and K55 series. It holds a 4.3 rating from users who rely on it for daily tasks. The 5200mAh capacity ensures enough power for general use away from outlets.
Pros
- Fits many models
- 5200mAh capacity
- Temperature control
- Full refund option
Cons
- Older model focus
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Its compatibility list covers many part numbers like A32-K55 and A33-K55 making it versatile. Safety features include overcurrent and temperature control functions to protect your device. Users note that it charges quickly and maintains stable voltage during operation.
The primary constraint is its focus on older chassis designs which may not suit newer laptops. If you have a legacy device this unit offers solid value and reliability. Check your exact model list in the product description before ordering.
Ideal for users with older ASUS models needing a straightforward power upgrade. The 12-month warranty and refund option provide additional security against defects.
Model Versatility
Supports dozens of legacy models making it a convenient replacement option.
Safety Features
Built-in temperature and overcurrent protection ensures safe daily use.
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5. B31N1912 Battery for VivoBook – Reliable Power
B31N1912 Battery for VivoBook
11.55V 42Wh
Polymer 3-cell
Fits E410 L410
12 Months Warranty
This variant offers consistent performance for VivoBook 14 and 15.6 inch models. It maintains a 4.3 rating and matches the original specifications exactly. The package includes installation tools to simplify the replacement process for users.
Pros
- Same specs as others
- Covers E510 series
- Includes tools
- Email support
Cons
- Limited return period
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Compatibility extends to E410 L410 and F414 series making it versatile for many owners. Users report that the polymer cells provide stable charge rates and long life. The 12-month warranty adds value compared to shorter guarantees.
The return window closes one month after delivery so prompt testing is required. This policy is standard across many battery sellers to prevent misuse. Ensure you verify the model before installation to avoid compatibility issues.
Buy this if you need a reliable power source for VivoBook devices. It balances affordability with safety certifications and standard warranty coverage.
Polymer Technology
Polymer cells offer better stability and safety than standard lithium-ion units.
Tool Inclusion
Included screwdrivers make installation easier for non-technical users.
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6. B31N1726 Battery for TUF – Gaming Ready
B31N1726 Battery for TUF
11.4V 48Wh
Li-polymer 3-cell
Fits FX504 FX80
12 Months Warranty
This battery targets TUF Gaming models like FX504 and FX80 series specifically. It holds a 4.3 rating from users needing consistent power for gaming tasks. The 48Wh capacity supports moderate usage away from a power outlet.
Pros
- Fits TUF Gaming
- 48Wh capacity
- High cycle life
- Safety protections
Cons
- Slightly higher price
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Compatibility includes FX505 FA506 and FA706 series covering many gaming laptops. The battery features overcurrent and temperature control to protect against overheating during heavy loads. Users note that it maintains charge well even under demanding workloads.
The price is slightly higher due to the gaming-specific design. However the robust safety features and fit quality justify the cost. Check your exact part number like B31N1726 to ensure compatibility.
Choose this for TUF devices needing a reliable power backup. It is designed to handle the heat and load of gaming sessions better than standard units.
Gaming Fit
Optimized for TUF Gaming chassis to handle higher power demands safely.
Thermal Control
Built-in temperature protection prevents overheating during intense use.
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7. TREE.NB B31N1912 Replacement – Solid Brand
TREE.NB B31N1912 Replacement
11.55V 42Wh
Li-ion 3-cell
Fits VivoBook
Email Support
This battery by TREE.NB provides standard specs for VivoBook 14 models. It holds a 4.3 rating and features rigorous testing to ensure consistent performance. The design matches original part numbers like B31N1912 precisely.
Pros
- Consistent specs
- Rigorous testing
- Low self-discharge
- Helpful support
Cons
- Limited unique features
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It fits E410 L410 and E510 series laptops with reliable power output. Users appreciate the low self-discharge rate which helps the battery retain power during storage. Support is available via email for any post-purchase concerns.
The design is straightforward without extra features like tools or long-term warranties. This keeps the price competitive but requires you to handle installation carefully. Ensure you test the unit within the return window to confirm function.
Choose this if you want a straightforward reliable replacement from a tested brand. It meets standard safety requirements and fits common VivoBook models well.
Tested Quality
Rigorous testing ensures voltage and capacity match original standards.
Storage Efficiency
Low self-discharge allows the battery to hold charge during idle periods.
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8. C41N1837 Battery for ROG – High Capacity
C41N1837 Battery for ROG
15.4V 76Wh
Fits Zephyrus
Grade A Cells
12 Months Replacement
This battery offers a high 76Wh capacity for ROG Zephyrus models. It holds a 4.2 rating from users who need extended power for heavy tasks. The Grade A cells ensure consistent voltage and lower heat during charging.
Pros
- 76Wh high capacity
- Fits Zephyrus
- Grade A cells
- 12-month replacement
Cons
- Higher price
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Compatibility covers GA502 and GU502 series laptops with precision fitting. Users note that the battery supports longer gaming or work sessions without interruption. The 12-month replacement policy adds value to the higher cost.
The main drawback is the higher price point compared to standard units. However the capacity and cell quality justify the expense for power users. Verify your model matches the Zephyrus list before purchasing.
Ideal for ROG owners seeking maximum runtime per charge. It balances power and safety well for gaming laptops.
High Capacity
76Wh capacity allows significantly longer unplugged use than standard units.
Cell Quality
Grade A cells reduce heat and extend the overall battery lifespan.
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9. TREE.NB B31N1912 Replacement – Safety Focused
TREE.NB B31N1912 Replacement
11.55V 42Wh
Li-ion 3-cell
Fits VivoBook
CE UL Certified
This unit stands out for its 4.4 rating and strict safety certifications. It matches the original 42Wh capacity for VivoBook 14 models perfectly. The build includes UL certification which adds an extra layer of safety assurance.
Pros
- 4.4 rating
- CE and UL certified
- Standard specs
- Helpful note
Cons
- Similar to others
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Users report stable power delivery and quick charge times for daily tasks. The product note guides you to discharge the battery before full charging to activate it. This ensures optimal performance from the start of usage.
The design is standard without unique features but the safety focus is notable. It fits E410 L410 and E510 series reliably. Ensure you follow the initial cycle advice to avoid recognition issues.
Buy this if safety certifications are a priority for you. It offers solid performance for standard VivoBook models with verified safety protocols.
Certifications
UL and CE certifications ensure the battery meets strict safety standards.
Initial Setup
Discharging to 10-20% before charging wakes the battery for best results.
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10. C41N1731-2 Battery for ROG – Premium Choice
C41N1731-2 Battery for ROG
15.4V 67Wh
Fits ROG Strix
BattArmor Safety
24-hour Support
This battery holds the highest rating of 4.6 in the entire list. It targets ROG Strix G15 and G17 models with a robust 67Wh capacity. The BattArmor safety system provides multiple protections against overcharge and heat.
Pros
- Highest rating
- 67Wh capacity
- BattArmor system
- 24-hour support
Cons
- Premium price
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Compatibility covers G512 G531 and G732 series ensuring exact fit. Users appreciate the 24-hour support team and quality certification. The battery is tested to provide reliable power even under heavy usage loads.
The price is a premium tier but matches the high safety and capacity standards. This makes it ideal for users who need top reliability for expensive machines. Check your specific model to ensure it matches the G15 G17 list.
Choose this for premium ROG devices where safety and performance are critical. It delivers excellent capacity and top-notch customer support for peace of mind.
Premium Safety
BattArmor system offers comprehensive protection against thermal and circuit faults.
Customer Support
24-hour friendly support ensures quick help if any issues arise.
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Buying Guide – How to Choose the Best ASUS Laptop Battery Replacement
Selecting the right power source involves checking several technical factors. This guide walks you through key aspects to ensure a safe and compatible replacement.
Part Number Match
Always verify the part number on your old battery matches the replacement. Model numbers like B31N1912 must align to ensure physical fit.
A correct part number prevents connection issues and guarantees your device recognizes the new power source.
Voltage and Capacity
Match the voltage and capacity to the original unit. For example 11.55V and 42Wh are common for VivoBook models.
Using the correct specs avoids damage to your motherboard and ensures consistent runtime.
Battery Chemistry
Most modern batteries use Li-ion or Li-polymer cells. Polymer units are often lighter and safer than standard ion types.
Choose the chemistry type that matches your original device for optimal safety and performance.
Safety Certifications
Look for UL CE FCC or RoHS marks on the product. These confirm the battery meets strict safety and environmental standards.
Certified units reduce risks of overheating or circuit failure during daily use.
Warranty and Support
Check the warranty length and support options. A 12-month warranty is standard for reliable sellers.
Good support helps you resolve installation issues quickly without extra cost.
Return Policy
Confirm the return window allows enough time for testing. Some sellers close returns after 30 days.
Test the battery immediately after delivery to confirm it holds charge properly.
Device Series
Ensure the battery fits your specific device series like TUF or ROG. Gaming models often have higher capacity needs.
Choosing the right series prevents physical fit issues and ensures proper cooling.
Price vs Value
Compare prices but avoid the cheapest options without safety marks. High-quality cells cost more but last longer.
Balance your budget with proven reliability to avoid frequent replacements.
How to Use and Care for Your ASUS Laptop Battery Replacement
Install the new battery only when the laptop is powered off and unplugged. Use the included screwdrivers to remove the back panel and disconnect the old connector carefully.
After installation charge the battery to 100% without interruption. This calibrates the internal meter and ensures accurate battery level reporting.
Avoid draining the battery to 0% regularly. Keep the charge between 20% and 80% during daily use to extend its lifespan significantly.
Frequently Asked Questions
How do I find the correct battery for my ASUS model?
Check the label on your old battery for the part number. Then search for that number online or in the product compatibility list. Always match the voltage and capacity to ensure it fits your specific device.
Are these replacements safe to use?
Reputable sellers offer batteries with UL and CE certifications. These confirm the unit meets strict safety standards for heat and circuit protection. Always check for these marks before buying to ensure safety.
How long does the battery last after replacing?
Most replacement batteries last between 500 to 800 charge cycles. This typically translates to two to three years of normal daily use depending on your habits.
What if the new battery is not recognized?
Disconnect and reconnect the battery plug to ensure a secure fit. Then discharge it to 10% and recharge fully to wake up the internal chip.
Do I need tools to replace the battery?
Many packages include a small screwdriver for the back panel. Some models also require a plastic pry tool. Always check the product description for included tools before ordering.
Can I use a higher capacity battery?
Physical space limits your battery size. Only use the capacity listed for your specific part number. Higher capacity may not fit or could cause overheating issues.
Final Thoughts on Choosing the Best ASUS Laptop Battery Replacement
We reviewed ten top options covering VivoBook TUF and ROG models. Each pick offers solid capacity and safety to keep your device running smoothly.
Prioritize matching the exact part number and checking certifications. A proper fit and safety marks ensure reliable performance and protect your laptop hardware.
Prices and stock change frequently so verify the current listing before buying. Check the warranty details to ensure you have coverage for peace of mind.