B31N1912 C31N1912 Laptop Battery Replacement
4.3Editor score
Fits multiple VivoBook models
42Wh capacity for daily use
Includes installation tools
In this guide
Choosing the right replacement battery for your ASUS laptop is essential for maintaining performance and mobility. A high-quality battery ensures your device runs efficiently without unexpected shutdowns or reduced lifespan. We have reviewed the top options available to help you find a reliable power source that matches your specific laptop model and usage needs.
Our team analyzed numerous replacement batteries based on compatibility, voltage accuracy, cell quality, and safety certifications. We looked at customer feedback, manufacturer warranties, and technical specifications to create a comprehensive list. This guide covers various ASUS series including VivoBook, ROG, and TUF Gaming to ensure you find the correct fit for your machine.
Each pick in this list highlights key features, pros, cons, and detailed specifications to simplify your decision process. We include installation tips and care advice to maximize battery life after purchase. Please note that prices and availability can change frequently, so verify current details before ordering to ensure you get the best value for your investment.
Top 3 Picks for Best ASUS Laptop Battery Replacement
Fancy Buying C21N1347 Laptop Battery Replacement
4.4Editor score
Compatible with X555 series
5000mAh high capacity
CE FCC safety certified
C41N1731-2 Battery Replacement for ROG Strix
4.6Editor score
67Wh high capacity
Advanced safety systems
Fits ROG Strix series
Top 10 Best ASUS Laptop Battery Replacement in 2026 Compared
This table provides a side-by-side comparison of the top ten replacement batteries evaluated in this guide. It highlights key specifications like voltage, capacity, and compatible models to help you quickly identify the right option for your ASUS laptop.
ProductsSpecificationsEditor scorePrice
Best Budget
B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
Fits VivoBook E410
4.3Editor score
Editor's Choice
B31N1912 C31N1912 Battery
11.55V Voltage
42Wh Capacity
3-Cell Polymer
Fits VivoBook L410
4.3Editor score
Editor's Choice
Fancy Buying C21N1347
7.6V Voltage
38Wh Capacity
3-Cell Li-polymer
Fits X555 Series
4.4Editor score
Fancy Buying A32-K55
11.1V Voltage
5200mAh Capacity
Li-polymer
Fits A45 K55
4.3Editor score
B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Polymer
Fits VivoBook F414
4.3Editor score
B31N1726
11.4V Voltage
48Wh Capacity
3-Cell Li-polymer
Fits TUF FX504
4.3Editor score
TREE.NB B31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
Fits VivoBook E510
4.3Editor score
C41N1837
15.4V Voltage
76Wh Capacity
Grade A Cells
Fits Rog Zephyrus
4.2Editor score
TREE.NB B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
Fits VivoBook R522
4.4Editor score
C41N1731-2
15.4V Voltage
67Wh Capacity
Advanced Safety System
Fits ROG Strix
4.6Editor score
1. B31N1912 C31N1912 – Best Budget Replacement
B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
Up to 500 cycles
This battery is a cost-effective solution for ASUS VivoBook owners seeking reliable power without overspending. With a rating of 4.3 stars it offers good value for those on a budget. It supports a wide range of models including E410 and L410 series making it versatile.
Pros
- Affordable pricing
- Fits multiple models
- Includes screwdrivers
- UL CE certified
- Strong support
Cons
- Return window closes early
- Needs recalibration
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The 42Wh capacity provides sufficient runtime for daily tasks like browsing and document editing. Grade A cells ensure durability with up to 500 recharge cycles. Safety features include short circuit and overheat protection ensuring safe operation.
Users should note that the return window closes after one month so check functionality immediately. Initial installation might require recalibration by discharging to 5 then cycling. The support team is responsive if issues arise via seller contact.
Ideal for budget-conscious users who need a direct replacement for older VivoBook models. The included tools simplify installation. Ensure your model number matches the compatibility list before purchasing to avoid fit issues.
Cost Effective Performance
Delivers reliable power at a lower price point than OEM options without sacrificing essential safety features.
Broad Compatibility
Fits numerous VivoBook variants including E410 L410 and E510 series for wide user coverage.
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2. B31N1912 C31N1912 Battery – Solid Alternative
B31N1912 C31N1912 Battery
11.55V Voltage
42Wh Capacity
3-Cell Polymer
Includes tools
This option offers a robust alternative with extended warranty coverage compared to some competitors. Rated 4.3 stars it is trusted by users for consistent performance. It matches specific part numbers like 0B200003680000 ensuring precision fit.
Pros
- 12 months warranty
- Fits many E410 variants
- User manual included
- 60-day return policy
Cons
- Return window closes early
- Slightly higher cost
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The polymer construction helps maintain stability under varying conditions. It supports a wide array of E410 L410 and F414 models. The 12-month replacement policy adds peace of mind for long-term use.
Note that the return window closes a month after receipt so inspect early. Contact support via ask a question for any issues. The battery includes installation tools for easier setup.
Recommended for users needing extended warranty protection. Ensure compatibility with your specific model number. The extra cost may be justified by the longer support period.
Extended Warranty Support
Provides 12 months replacement warranty and 60-day return window for added buyer confidence.
Detailed Compatibility
Listings include detailed model variants like E410MA-EK007TS for precise matching.
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3. Fancy Buying C21N1347 – Editor's Choice
Fancy Buying C21N1347
7.6V Voltage
38Wh Capacity
3-Cell Li-polymer
Fits X555 series
This battery stands out with a strong 4.4 rating and high 5000mAh capacity for its class. It is ideal for older X555 and K555 laptops that need reliable power. The Li-polymer tech offers better safety and stability.
Pros
- High 5000mAh capacity
- Fits X555LA series
- CE FCC safety
- Stable circuit protection
Cons
- Lower voltage models only
- Recalibration needed
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The 7.6V specification ensures compatibility with 7.4V systems. It includes built-in circuit protection against overheat and overload. User feedback highlights consistent performance over time.
Users must check model compatibility carefully as it fits specific X555 variants. Recalibration might be required during initial use. Safety certifications add to its reliability.
Best for users with X555 series laptops seeking extended runtime. The capacity is impressive for this voltage range. Verify part numbers before purchase to avoid errors.
High Capacity Performance
Delivers 5000mAh capacity which is higher than many standard replacements for similar models.
Safety Certifications
Certified by CE and FCC ensuring environmental and electrical safety compliance.
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4. Fancy Buying A32-K55 – Reliable for Older Models
Fancy Buying A32-K55
11.1V Voltage
5200mAh Capacity
Li-polymer
Fits K55 R400
This battery caters to users with older ASUS models like A45 and K55. With a 4.3 rating it provides steady power for daily tasks. The 5200mAh capacity ensures decent battery life.
Pros
- Fits many older models
- 5200mAh capacity
- Overcurrent protection
- 30-day refund
Cons
- Limited to older series
- No tools included
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Safety features include overcurrent and temperature control functions. It meets OEM standards for quality and performance. Many users appreciate the broad model compatibility.
Note that it does not include installation tools. The 30-day refund window is standard but check early. Ensure your model matches the list as older models vary widely.
Great for keeping legacy laptops running without high costs. The capacity is strong for 11.1V systems. Verify your specific model number before ordering.
Legacy Model Support
Covers a wide range of older models including A45 A55 and R500 series.
Robust Safety Features
Includes overcurrent anti-overcharge and temperature control for safe operation.
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5. B31N1912 C31N1912 – Comprehensive Fit
B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Polymer
Fits L510MA
This battery is optimized for specific VivoBook models like L510MA-WB04. It has a 4.3 rating and offers consistent power. The 42Wh capacity meets standard usage needs.
Pros
- Fits L510MA-WB04
- 12-month warranty
- Includes installation tools
- 60-day return
Cons
- Return window closes early
- Needs calibration
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Support includes 12-month replacement warranty. Installation tools are included for convenience. Safety standards meet OEM requirements.
Check the return window closes early. Contact via ask a question for issues. Recalibration ensures optimal performance.
Best for L510MA users needing reliable replacement. Ensure model match. Warranty is a key advantage.
Specific Model Fit
Tailored for L510MA-WB04 and other specific VivoBook 14 variants.
Installation Convenience
Includes tools and manual for easier setup.
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6. B31N1726 – TUF Gaming Series Power
B31N1726
11.4V Voltage
48Wh Capacity
3-Cell Li-polymer
Fits TUF FX504
This battery serves ASUS TUF Gaming laptops like FX504 and FX505. With a 4.3 rating it offers power for gaming sessions. The 48Wh capacity is substantial.
Pros
- Fits TUF FX504
- 48Wh high capacity
- Temperature control
- 30-day refund
Cons
- Gaming models only
- Higher price point
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Safety features include overtemperature protection. It ensures low power consumption for efficiency. Warranty is standard.
Ensure model matches as gaming laptops vary. 30-day refund applies. Recalibration recommended.
Ideal for TUF owners. Good for gaming. Verify model.
Gaming Series Support
Designed specifically for TUF Gaming FX504 and FX80 series.
Thermal Management
Includes temperature control for safe operation during high load.
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7. TREE.NB B31N1912 – Trusted Brand
TREE.NB B31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
Fits E410MA
This TREE.NB battery is noted for rigorous testing and low self-discharge. With a 4.3 rating it provides reliable power. It fits E410MA and E510KA models well.
Pros
- Low self-discharge
- 24h support
- Fits E510KA
- Rigorous testing
Cons
- Limited info
- No tools included
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Support is 24h via email. Safety features are standard. Capacity is solid.
Ensure compatibility. Check early. Support responsive.
Best for E510KA. Good battery. Verify model.
Low Self-Discharge
Designed to hold charge longer when not in use.
Responsive Support
24-hour email support available for quick issue resolution.
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8. C41N1837 – Premium Zephyrus Power
C41N1837
15.4V Voltage
76Wh Capacity
Grade A Cells
Fits Rog Zephyrus
This battery delivers 76Wh capacity for high-performance ROG Zephyrus models. Rated 4.2 it supports demanding tasks. The 15.4V spec matches premium units.
Pros
- High 76Wh capacity
- Grade A cells
- Overcharge protection
- 12 months replacement
Cons
- Premium price
- Needs care
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Grade A cells ensure fast charging. Safety features protect against overload. Warranty is strong.
Cost higher but justified. Check model match. Handle carefully.
Best for Zephyrus owners. High power. Verify model.
High Capacity Performance
76Wh capacity supports extended usage for power users.
Premium Materials
Uses Grade A cells for better charge rates.
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9. TREE.NB B31N1912 C31N1912 – Quality Match
TREE.NB B31N1912 C31N1912
11.55V Voltage
42Wh Capacity
3-Cell Li-ion
UL CE certified
This option has a 4.4 rating indicating quality. It fits R522MA and E410 series well. UL and CE certifications add trust.
Pros
- 4.4 rating
- UL CE certified
- Fits R522MA
- Strict standards
Cons
- Needs recalibration
- Check model carefully
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38Wh capacity supports standard tasks. Recalibration needed. Safety is strong.
Check early. Match model well. Quality product.
Best for R522MA. Reliable. Verify model.
Safety Certifications
Certified by UL and CE ensuring safety compliance.
High User Rating
4.4 stars reflect reliable user satisfaction.
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10. C41N1731-2 – Best Premium
C41N1731-2
15.4V Voltage
67Wh Capacity
BattArmor safety
Fits ROG Strix
This premium battery has a top 4.6 rating. It supports ROG Strix G15 and G512 models. The 67Wh capacity provides extended usage.
Pros
- Highest rating 4.6
- 67Wh capacity
- Advanced BattArmor safety
- Fits ROG Strix G15
Cons
- Premium price
- Specific to Strix
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BattArmor safety protects against overload. Includes tools and manual. Warranty is strong.
Cost high but worth it. Check model. Handle safely.
Best for ROG Strix. Premium. Verify model.
BattArmor Safety System
Advanced protection against overcharge and short circuit.
Extended Runtime
67Wh capacity supports longer sessions without recharging.
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Buying Guide – How to Choose the Best ASUS Laptop Battery Replacement
Selecting the right replacement battery requires understanding your laptop model and technical specifications. This guide outlines key factors to ensure compatibility and safety.
Compatibility Verification
Always check your laptop model and part number against the product description. Manufacturers release many variations of similar models that may have different battery requirements.
Confirming exact compatibility avoids fit issues and ensures proper electrical connection.
Voltage Match
The replacement battery must match the original voltage specification exactly. Using a different voltage can damage the laptop or cause charging issues.
Check the battery label or user manual for the correct voltage before ordering.
Capacity and Runtime
Capacity measured in Wh or mAh affects how long your laptop lasts on a single charge. Higher capacity batteries offer longer runtime but may weigh more.
Choose a capacity that balances your portability needs with usage time.
Cell Quality
Look for Grade A cells which provide consistent performance and longer lifespan. Inferior cells may fail prematurely or heat up excessively.
Quality cells reduce risk of swelling and maintain battery health.
Safety Certifications
Ensure the battery has UL CE FCC or RoHS certifications. These indicate the product meets safety standards for electrical and environmental compliance.
Certified products have built-in protections against overcharge and short circuit.
Warranty Coverage
A good warranty protects your investment. Most replacements offer 12 months coverage but check for return windows and support options.
Strong warranty support ensures help if the battery fails unexpectedly.
Installation Tools
Some batteries include screwdrivers or tools needed for removal. Having these can simplify the process and prevent damage to screws.
Check if tools are included to avoid buying them separately.
Support and Reviews
Read user reviews for real-world performance feedback. Responsive customer support is crucial for addressing compatibility or technical issues.
Strong community feedback indicates reliability and satisfaction.
How to Use and Care for Your ASUS Laptop Battery Replacement
When installing the new battery, ensure the laptop is powered off and unplugged. Remove the old battery carefully using the included tools if available.
For optimal performance, cycle the new battery by discharging it to 5 then charging to 100 several times. This helps calibrate the battery meter.
Store your laptop in a cool dry place and avoid exposing the battery to extreme temperatures. This extends the life of the cells.
Frequently Asked Questions
How do I know which battery fits my ASUS laptop?
Check the label on your current battery or the laptop chassis for the part number. Compare this with the product compatibility list to ensure a match. Always verify the voltage and dimensions before purchasing.
Is it safe to use a third-party replacement battery?
Yes if the battery meets safety certifications like UL or CE. Ensure it uses quality cells and has protections against overcharge and overheating.
What should I do if the new battery is not recognized?
Recheck that the connector is fully seated. Try discharging to 5 then charging to reset the battery management system. Contact support if issues persist.
How long does a replacement battery last?
Quality replacements offer around 500 recharge cycles. Actual duration depends on usage patterns and environmental conditions. Proper care extends lifespan.
Can I mix old and new batteries?
No never mix batteries of different ages or types. Always replace with a single compatible unit to avoid performance issues.
Do I need special tools to install the battery?
Most replacements require standard screwdrivers which are sometimes included. Check the product details for included tools to ensure a smooth install.
What if the battery arrives swollen?
Do not attempt to use a swollen battery as it poses safety risks. Contact the seller immediately for a replacement and follow safety disposal guidelines.
How do I calibrate the new battery?
Charge to 100 then use until it reaches 5. Charge fully again. Repeat this cycle 3 to 4 times to reset the gauge accurately.
Final Thoughts on Choosing the Best ASUS Laptop Battery Replacement
We have reviewed ten top replacement options covering a variety of ASUS models. Each picks delivers reliable power tailored to specific laptop families like VivoBook ROG and TUF.
Prioritize compatibility and safety certifications when choosing. Warranty coverage and cell quality are also crucial for long-term satisfaction.
Remember to verify your model number and check current prices before purchasing. A suitable replacement will restore your laptops mobility and performance.