Best Phone Batteries for iPhone 8 of 2026

Mike Davis Avatar
Mike Davis
Last Updated: Jan 10, 2026

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Looking for a reliable and long-lasting battery for your iPhone 8? There are several options on the market that can help keep your phone powered up throughout the day. Some popular choices include the Apple Smart Battery Case, which provides up to 33 hours of talk time and 21 hours of internet use, and the Anker PowerCore 10000, a compact and portable external battery pack that can charge your phone up to three times. Additionally, the Belkin Boost Up Wireless Charging Pad is a convenient option for those who prefer wireless charging. Whatever your preference, there are plenty of phone batteries available for iPhone 8 users to choose from.

At a Glance: Our Top Picks

EFAITHFIX 4500mAh Battery for iPhone 8 Plus Cover #TOP 1
EFAITHFIX 4500mAh Battery for iPhone 8 Plus
ftb score rating icon 9.9
EMNT 12000mAh Replacement Battery for iPhone 8 Cover #TOP 2
EMNT 12000mAh Replacement Battery for iPhone 8
ftb score rating icon 9.8
BEBAT Replacement Battery for iPhone 8 Cover #TOP 3
BEBAT Replacement Battery for iPhone 8
ftb score rating icon 9.6

Top 3 Phone Batteries for iPhone 8

#TOP 1

EFAITHFIX 4500mAh Battery for iPhone 8 Plus

8 Plus
8 Plus-4500
iPhone 8 Plus
EFAITHFIX 4500mAh Battery for iPhone 8 Plus Cover
EFAITHFIX 4500mAh Upgraded Replacement Battery Compatible with iPhone 8 Plus, High Capacity New 0 Cycle A+ Battery Replacement for iPhone 8 Plus, Model A1864 A1897 A1898 with Complete Repair Tool Kit

The EFAITHFIX iPhone 8 Plus Battery is a powerful replacement designed to enhance your phone's performance. With a high capacity of 4500mAh, it offers more power than the original battery, allowing you to use your device longer without constantly worrying about running out of charge. This brand new, 0-cycle battery is built for durability, lasting over 1600 cycles, ensuring your phone stays alive and well. Safety is a priority, as it features multiple protections against overcharging and overheating, giving you peace of mind while using your device. Plus, the easy installation kit makes replacing your battery a breeze, even for beginners.

What We Like
Easy installation process
Clear instructions included
Improved battery life
Good compatibility and fit
Works like new
What We Don't Like
Minor charging issues
Not recognized as OEM battery
#TOP 2

EMNT 12000mAh Replacement Battery for iPhone 8

ETIT8
EMNT 12000mAh Replacement Battery for iPhone 8 Cover
EMNT 12000mAh Battery for iPhone 8, (Model:A1863 A1905 A1906) High Capacity Than Others Replacement Battery with Complete Repair Tool Kit and Instructions.8

The EMNT iPhone 8 Battery is designed specifically for iPhone 8 models A1863, A1905, and A1906, so make sure your phone matches these before buying. With a large 12000mAh capacity, this battery offers longer usage and standby time, meaning fewer charges for you. It includes built-in safety features like protection against overcharging, overheating, and short circuits, ensuring safe and reliable performance. Plus, you get a complete toolkit and clear instructions to help you replace your battery easily at home. Just remember, the battery performs best after a few full charge cycles.

What We Like
Easy installation process
Improved battery life
Good value for money
Complete installation kit
Works with older iPhones
What We Don't Like
Occasional battery issues
Tiny screws easy to misplace
#TOP 3

BEBAT Replacement Battery for iPhone 8

BEBAT Replacement Battery for iPhone 8 Cover
BEBAT Replacement for iPhone 8 Battery, 4000mAh High Capacity Li-ion Polymer Replacement Battery for Model A1863 A1905 A1906 with Professional Repair Tool Kits

The BEBAT Replacement Battery for iPhone 8 is a high-capacity, high-performance battery kit that is compatible with the iPhone 8 models A1863, A1905, and A1906. It has a capacity of 1821 mAh and a voltage of 3.82V, making it a reliable and long-lasting battery. The kit comes with a complete repair tool set and a suction cup to help with the replacement process. Customers have reported that the battery works almost as well as a new one and is worth the cost.

What We Like
Longer battery life
Complete tool kit included
Clear installation instructions
Perfect fit for iPhones
Restores old phones
What We Don't Like
Screwdriver bit quality
Instructions font size
Buying Guide Image

Sorting Out the Phone Batteries for iPhone 8 That Are Right for You

Introduction

If you're reading this, chances are you're in need of a new battery for your iPhone 8. Maybe you're noticing that your phone isn't holding a charge as long as it used to, or maybe it's just not functioning as well as it used to. Either way, finding the right replacement battery for your iPhone 8 is crucial to ensuring that your phone functions at its best.

Things to Consider

When it comes to choosing a replacement battery for your iPhone 8, there are a few key things to consider. First and foremost, you'll want to make sure that the battery you choose is compatible with your phone. This might seem like a no-brainer, but it's worth double checking to ensure that you don't end up with a battery that won't work with your phone.

Another important factor to consider is the capacity of the battery. The capacity of a battery refers to how much power it can hold. A battery with a higher capacity will be able to hold more power and last longer than a battery with a lower capacity. However, it's worth noting that batteries with higher capacities are often more expensive, so you'll want to find a balance between price and capacity.

Finally, you'll want to consider the quality of the battery. It's always a good idea to invest in a high-quality battery to ensure that it lasts as long as possible and performs well. Cheap, low-quality batteries are often prone to failing or not performing as well as their higher-quality counterparts.

Where to Buy

Now that you know what to look for in a replacement battery for your iPhone 8, it's time to decide where to buy it from. One option is to purchase the battery directly from Apple. While this might be the most convenient option, it's also likely to be the most expensive.

Another option is to purchase the battery from a third-party retailer. There are many reputable retailers that sell replacement batteries for iPhones, and they often have a wide selection to choose from. Just be sure to do your research and read reviews before making a purchase to ensure that you're getting a high-quality product.

Finally, you might consider purchasing a battery from an online retailer. This can be a convenient option, but it's important to be cautious and do your research to ensure that you're getting a reputable product.

Conclusion

Choosing a replacement battery for your iPhone 8 doesn't have to be a daunting task. By considering compatibility, capacity, and quality, you can find a battery that will serve you well and keep your phone functioning at its best. Whether you choose to purchase from Apple, a third-party retailer, or an online retailer, just be sure to do your research and invest in a high-quality product to ensure the best performance.

Frequently Asked Questions (FAQs)

1. Is it good to replace iPhone 8 battery?

If your iPhone 8 is less than two years old, you generally don't need to replace the battery. Apple states that the iPhone batteries are designed to maintain 80% of their capacity even after 500 charging cycles. However, if you notice a significant decrease in battery life or performance, it may be worth considering a battery replacement.

2. What is the lifespan of an iPhone 8 battery?

The lifespan of an iPhone 8 battery typically lasts for at least 2 to 3 years, sometimes longer. Over time, the battery's capacity may decrease, resulting in shorter battery life. If you find that your iPhone 8 battery no longer holds a charge for a satisfactory amount of time, it may be a sign that it's time to replace the battery.

3. Can I replace iPhone battery myself?

Yes, you can replace the battery of your iPhone 8 yourself, even if you don't use Apple's do-it-yourself repair program. There are DIY battery replacement kits available, and with the right tools and instructions, you can replace the battery at home.

4. How do I know if my iPhone 8 battery is bad?

To check the health of your iPhone 8 battery, go to Settings > Battery, then tap on Battery Health & Charging. Here, you can find information about the battery's capacity, peak performance capability, and whether it needs to be serviced. If you notice a significant decrease in battery capacity or performance, it might indicate a faulty battery.

Editor's Notes

During our phone battery for iphone 8 research, we found 24 phone battery for iphone 8 products and shortlisted 3 quality products. We collected and analyzed 9,661 customer reviews through our big data system to write the phone batteries for iphone 8 list. We found that most customers choose phone batteries for iphone 8 with an average price of $18.24.

The phone batteries for iphone 8 are available for purchase. We have researched hundreds of brands and picked the top brands of phone batteries for iphone 8, including EFAITHFIX, EMNT, BEBAT. The seller of top 1 product has received honest feedback from 175 consumers with an average rating of 4.8.

Written by
Mike Davis Avatar

Mike Davis is a professionally trained electrician with six years of working experience in the electronics industry. He has written an array of web and mobile-based articles for e-magazines and blogs. He loves trying out some novel and popular gadgets and his expertise is in the areas of electronics and computers which is built over many years of working and personal experiences.