The Best Asus Ep121 Battery of 2025 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best Asus Ep121 Battery of 2025. Check our ranking below.

2,532 Reviews Scanned

Rank No. #1

PRAENDA 7.3V 34wh 4660mAh C22-EP121 Battery for EEE Pad B121 EP121 B121-A1 B121-1A001F Tablet PC

1. Do not disassemble, crush or puncture the battery. Do not throw it into fire or water.
2. All our products are supplied directly from factory and we guarantee full inspection before shipment.

Rank No. #2

DBTLAP Laptop CMOS Battery Compatible for ASUS EEE Slate EP121 CMOS Battery

DBTLAP Laptop CMOS Battery Compatible for ASUS EEE Slate EP121 CMOS Battery

Rank No. #3

RHKRKQN C31N1733 Laptop Battery Replacement for ASUS VivoBook Flip 14 TP412 TP412U TP412UA TP412F TP412FA TP412UA-DB31T TP412UA-IH31T TP412UA-EC059T TP412FA-EC551T TP412FA-EC707T Series 11.55V 42Wh

COMPATIBLE LAPTOP MODELS: Fit for Asus VivoBook Flip 14 TP412U TP412UA Series TP412UA-DB21T TP412UA-DB31T TP412UA-DB51T TP412UA-DB71T TP412UA-AS8202T TP412UA-EC085T TP412UA-EC114TS TP412UA-EC232T TP412UA-EC752T TP412UA-EC947T TP412UA-EC034T TP412UA-EC036T TP412UA-EC039T TP412UA-EC047T TP412UA-EC053R TP412UA-EC053T TP412UA-EC055T TP412UA-EC056T TP412UA-EC057T TP412UA-EC059T TP412UA-EC069R TP412UA-EC069T TP412UA-EC072T TP412UA-EC076T TP412UA-EC090T TP412UA-EC093T TP412UA-EC113T TP412UA-EC115T TP412UA-EC123T
COMPATIBLE LAPTOP MODELS: Fit for Asus VivoBook Flip 14 TP412F TP412FA Series TP412FA-DS51T TP412FA-DB72T TP412FA-OS31T TP412FA-SB55T TP412FA-EC020T TP412FA-EC082T TP412FA-EC175T TP412FA-EC224T TP412FA-EC272R TP412FA-EC339T TP412FA-EC350R TP412FA-EC363RA TP412FA-EC379R TP412FA-EC385T TP412FA-EC417T TP412FA-EC433R TP412FA-EC452T TP412FA-EC477T TP412FA-EC573T TP412FA-EC598T TP412FA-EC870T TP412FA-EC011T TP412FA-EC013T TP412FA-EC020T TP412FA-EC026T TP412FA-EC010T TP412FA-EC035T TP412FA-EC131T TP412FA-EC134T
BATTERY SPECIFICATION: Model Name: C31N1733; Voltage: 11.55V; Capacity: 42Wh / 3640mAh; Battery Type: Li-ion; Condition: 100% brand new from manufacturer; Color: Black; Packaged come with: 1*battery + battery installation screwdrivers + 1*instruction for laptop battery
COMPATIBLE PART NUMBER: Battery C31N1733, 0B200-02970000, 0B20002970000, 0B200-02970100, 0B200-02970100M, C31PIJ1, 3ICP5/58/78, 3ICP55878
QUALITY ASSURANCE & NOTE: RHKRKQN battery adopt Grade "A" battery cells to ensure longer battery life, durability, and lower power consumption; All our products are certified by CE, UL for safety; Before purchasing, please open the back cover of your laptop to confirm the original battery model name and shape, make sure you choose the right compatible battery

Rank No. #4

C21N1818-1 Battery Replacement for ASUS VivoBook 15 F512 F512D F512DA F512FA F512FB F512FJ F512FL F512JA F512JP F512UA A512DA A512F A512FA A512FB A512FL A512J A512JA A512JP A512U A512UA A512UF 37Wh

Specifications: Battery type: Li-Polymer; Color: Black. Voltage: 7.7V. Capacity: 37Wh. Cell: 2-Cell. New from Manufacturer
Compatible Part Number: B21N1818-1 C21N1818-1 0B200-03280800 2ICP7/54/83
Compatible Models: Replacement for ASUS VivoBook 15F512 F512D F512DA F512FA F512FB F512FJ F512FL F512JA F512JP F512UA, F512UA-BQ251T, F512FA-BQ067T, F512FA-BQ148T, F512FA-BQ145T, F512FA-BQ150R, F512FA-EJ1422T, F512FA-EJ851T, F512UB-BQ039T, F512FB-EJ175T, F512FL-BQ547T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ054T, F512FL-EJ543T, F512FL-EJ761T, F512FL-EJ762T Series
Compatible Models: Replacement for ASUS VivoBook A512DA A512F A512FA A512FB A512FL A512J A512JA A512JP A512U A512UA A512UF Series; Replacement for ASUS VivoBook K512FA K512J K512JA K512JP Series; Replacement for ASUS VivoBook R564 R564D R564DA R564F R564FA R564FJ R564J R564JA R564JP Series; Replacement for ASUS VivoBook S512 S512D S512DA S512DK S512F S512FA S512FB S512FL S512FJ S512U S512UA Series; Replacement for ASUS Vivobook 15 X512 X512D X512DA X512DK X512F X512FA X512FB X512FJ X512FL X512J X512JA X512JF X512JP X512U X512UA X512UB X512UF K512 K512F Series
Note: If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected. Discharge the new battery to 10-20% (not 0%), then charge and cycle 3-4 times to wake up the new battery

Rank No. #5

B31N1911 C31N1911 Battery Replacement for ASUS VivoBook Flip 14 M413 M413DA TM420IA K413 X421DA X421FA X421FL X421JA X413 F413 F413JA R413DA R432UA R438IA S413DA TP470E TP470EA TP470EZ C31N1911

【Specifications】 Model: B31N1911; Battery Type: Lithium polymer; Voltage: 11.55V; Capacity: 42Wh; Cells: 3 cells; Color: Black with One Free Screwdrivers for easy installation.
【Compatible Part Number】B31N1911 C31N1911 0B200-03750000 0B200-03580000 B0B200-03580300
【Compatible with】For ASUS VivoBook Flip 14 TM420IA TM420IA-DB71T TM420IA-CH71 TM420IA-DB51T Series; for ASUS VivoBook 14 M413 M413DA M413DA-EB005T M413DA-EB094T Series; for ASUS VivoBook Flip 14 TM420IA TM420IA-AP4513T TM420IA-EC056T Series; for ASUS VivoBook 14 F413 K413 X413 Series; for ASUS Notebook X X413FF X421DA X421EA X421EP A413FF F413FF K433FA V4050FA V433FA Series.
【Compatible with】 for Asus VivoBook Flip 14 A413FA D413DA D413IA M413DA M413IA M413UA M433IA Series. for Asus VivoBook Flip 14 F413JA Series. for Asus VivoBook Flip 14 K413EA K413FA K413FQ Series. for Asus VivoBook Flip 14 R413DA R438IA S413DA S413EA S413FA S413FQ Series. for Asus VivoBook Flip 14 S433EA S433EQ S433FA TM420IA TM420U Series. for Asus VivoBook Flip 14 TP420IA TP420UA Series. for Asus VivoBook Flip 14 X421DA X421EA X421EP X421EQ Series
【Security and Stable Quality】All of our products are certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety. Use of built-in circuit protection to ensure safety and stability.

Rank No. #6

B31N1912 C31N1912 Laptop Battery for ASUS VivoBook 14 15.6" E410 E410MA E410M L410MA E410KA L410M-15 F414MA E510 L510 L510MA R522MA L510MA-WB04(DF112) L410MA-BV058TS E410MA-EK017TS E510KA-EJ033TS

Battery Type: Polymer. Voltage: 11.55V Capacity: 42Wh ; Cells: 3-cell; Color: Black, Packages includes: 1x B31N1912 battery , with auxiliary installation tool and user manual.
Replace Part Numbers:B31N1912 C31N1912 0B200-03680000 0B200-03680100 0B200-03680200 L510MA-WB04(DF112) L410MA-BV058TS E410MA-EK017TS E510KA-EJ033TS 3ICP5/57/80
Compatible Models:Fit for Asus VivoBook 14 E410 E410MA E410MA-EK007TS E410MA-EK017TS E410MA-EK026TS E410KA E410KA-EK139TS, Fit for Asus VivoBook 14 L410 L410MA L410MA-BV037TS L410MA-BV053TS L410MA-BV058TS, Fit for Asus VivoBook 14 F414 F414MA, Fit for Asus VivoBook E510 E510MA E510KA E510KA-EJ033TS, Fit for Asus VivoBook L510 L510MA Series
Compatible Models:Fit for Asus VivoBook 14 E410MA E410MA-EK018TS E410MA-BV1169TS E410MA-EK028TS E410MA-EK087T E410MA-EK211T E410MA-EK319T E410MA-EK321T E410MA-EK327TS E410MA-EK367TS E410MA-EK378T E410MA-EK505T E410MA-EK542T E410MA-EK946TS E410MA-EK991TS, Fit for Asus VivoBook 14 L410MA L410MA-BV076TS L410MA-BV077TS
Compatible Models: Replacement for Asus VivoBook 14 E410M E410MA Series, Asus VivoBook 14 L410M L410MA Series, Asus VivoBook E410KA-EK139TS Series, Asus VivoBook E510KA-EJ033TS Series, Asus VivoBook F414MA Series,Asus VivoBook L510MA Series, Asus VivoBook R522MA Series,Asus VivoBook E510MA Series Notebook.

Rank No. #7

NBULBL C12N1320 Laptop Battery Replacement for ASUS Transformer Book T100T Tablet 0B200-00720300 [3.85V 31Wh]

【Battery type】Li-ion; Voltage: 3.85V Capacity: 31Wh
【Compatible Part Number】C12N1320
【Replacement For Laptop】ASUS Transformer Book T100T Tablet 0B200-00720300
【Use Skills】If the new battery is not recognized during the initial installation, please reinstall and check if the interface is fully connected.Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to wake up the new battery.
【Connector】Before placing your order,Please refer to the picture and check it.Because the products produced by different factories will have differences, such as size, cable length, interface, etc.

Rank No. #8

Accessory USA 19.5V AC Adapter for Asus Eee Slate Tablet B121 EP121 EP121-1A004M EP121-1A005M EP121-1A008M EP121-1A009M EP121-1A010M p/n : 04G26B000830-14G110004760, 90-OK02SP10000Q, ADP-65NH A

Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
This Adapter is a Brand New, High Quality Never USED (non-OEM)
Compatiblity: 19.5V AC Adapter for Asus Eee Slate Tablet B121 EP121 EP121-1A004M EP121-1A005M EP121-1A008M EP121-1A009M EP121-1A010M p/n : 04G26B000830-14G110004760, 90-OK02SP10000Q, ADP-65NH A
Note:please make sure the model of your device before buying

Rank No. #9

ABLEGRID 19.5V AC Adapter for Asus Eee Slate Tablet B121 EP121 EP121-1A004M EP121-1A005M EP121-1A008M EP121-1A009M EP121-1A010M p/n : 04G26B000830-14G110004760, 90-OK02SP10000Q, ADP-65NH A

Ablegrid Brand Replacement Product
Tested Units. In Great Working Condition.
Please check your model whether it is the same as the listing shows before purchasing!
World Wide Input Voltage 100-240VAC 50/60Hz
OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)

Rank No. #10

Accessory USA AC Adapter for Asus Eee Slate EP121 (64 GB) Tablet Computer Charger Power Supply

Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)
This Adapter is a Brand New, High Quality Never USED (non-OEM)
Compatiblity: AC Adapter For Asus Eee Slate EP121 (64 GB) Tablet Computer Charger Power Supply
Note:please make sure the model of your device before buying

Last update on 2026-05-15 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best Asus Ep121 Battery?

Do you get stressed out thinking about shopping for a great Asus Ep121 Battery? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Asus Ep121 Battery, which is why we have assembled a comprehensive list of the greatest Asus Ep121 Battery available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Asus Ep121 Battery that you consider buying. Your questions might include the following:

Is it worth buying an Asus Ep121 Battery?
What benefits are there with buying an Asus Ep121 Battery?
What factors deserve consideration when shopping for an effective Asus Ep121 Battery?
Why is it crucial to invest in any Asus Ep121 Battery, much less the best one?
Which Asus Ep121 Battery are good in the current market?
Where can you find information like this about Asus Ep121 Battery?

We’re convinced that you likely have far more questions than just these regarding Asus Ep121 Battery, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Asus Ep121 Battery, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Asus Ep121 Battery. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Asus Ep121 Battery buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Asus Ep121 Battery currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of Asus Ep121 Battery has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an Asus Ep121 Battery?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your Asus Ep121 Battery.
Customer Ratings: Number ratings grade Asus Ep121 Battery objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Asus Ep121 Battery.
Product Quality: You don’t always get what you pay for with an Asus Ep121 Battery, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an Asus Ep121 Battery is should be an indication of how long it will work out for you.

We always remember that maintaining Asus Ep121 Battery information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Asus Ep121 Battery is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

The Best Asus Ep121 Battery of 2025 – Reviews & Buying Guide

How Do You Buy The Best Asus Ep121 Battery?

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