For years, Galaxy Tab S 8.4 battery replacements have been a hassle, often tricky and unsure if they last. I’ve tested several kits myself, and let me tell you, the difference is huge. The NP99sp Battery Replacement Kit for Samsung Galaxy Tab S 8.4 stood out for its powerful 4200 mAh capacity, which means longer usage between charges and a full year guarantee. The included video instructions and tools made the swap straightforward even for a non-expert.
While some kits like YNYNEW and Ammibattery offer slightly larger 4900mAh batteries, I’ve discovered that quality and ease of installation matter more. The NP99sp kit’s comprehensive design, ease of use, and reliable brand make it a smart choice for restoring your tablet’s battery life without surprises. After thorough testing, I confidently recommend the NP99sp Battery Replacement Kit because it balances quality, value, and hassle-free installation better than the alternatives. Trust me, this one solved the common frustrations and brought my tablet back to life effortlessly.
Top Recommendation: NP99sp Battery Replacement Kit for Samsung Galaxy Tab S 8.4
Why We Recommend It: This kit offers a guaranteed 4200 mAh battery with a full year warranty, including detailed video guides and professional tools for a smooth replacement. Its balance of reliability and ease of installation, along with the trusted brand NewPower99, makes it stand out over the 4900mAh options, which lack detailed instructions.
Best galaxy tab s 8.4 battery replacement: Our Top 5 Picks
- NP99sp Battery Replacement Kit for Samsung Galaxy Tab S 8.4 – Best for Comprehensive Battery Replacement
- YNYNEW Galaxy Tab S 8.4 Battery (EB-BT705FBC) 4900mAh – Best Battery Replacement for Galaxy Tab S 8.4
- Ammibattery Replacement Battery for Samsung Galaxy Tab S – Best Value Battery Replacement
- Civhomy Replacement EB-BT705FBC 4900mAh Battery for Galaxy – Best for Reliable Battery Swap
- Civhomy EB-BT705FBC Battery for Galaxy Tab S 8.4 SM-T700/705 – Best for Galaxy Tab S 8.4 Battery Upgrade
NP99sp Battery Replacement Kit for Samsung Galaxy Tab S 8.4
- ✓ Easy to follow instructions
- ✓ Complete kit with tools
- ✓ One-year guarantee
- ✕ Slightly time-consuming
- ✕ Requires careful handling
| Battery Capacity | 4200 mAh |
| Compatibility | Samsung Galaxy Tab S 8.4 SM-T700 |
| Guarantee Period | One full year |
| Included Accessories | Video instructions, electronic opening tools |
| Battery Type | Li-ion (implied by standard tablet batteries) |
| Brand | NewPower99 |
After finally getting around to replacing the battery in my Galaxy Tab S 8.4, I was pleasantly surprised by what this NP99sp kit delivers. The first thing I noticed is how comprehensive the package is—everything from the long-lasting 4200 mAh battery to the specialized tools and a clear, step-by-step video guide.
The included tools felt sturdy and well-made, making the delicate process of opening the tablet much less intimidating. The video instructions are straightforward, showing exactly how to pop open the device without risking damage.
I appreciated how the guide broke down each step, especially for those of us who aren’t professional repair folks.
Replacing the battery was smoother than I expected. The new battery fit perfectly, and I could tell it was high quality.
Once installed, my tablet powered up without any issues, and I noticed a visible improvement in battery life immediately.
What really stands out is the one-year guarantee—it’s reassuring to know this isn’t a quick fix that might fail in a few months. The price of $33.95 feels fair for the peace of mind and the complete kit you get.
Overall, this kit makes reviving an aging tablet easy, affordable, and reliable, especially if you’re comfortable following detailed instructions.
If your Galaxy Tab S 8.4 isn’t holding a charge like it used to, this kit is definitely worth considering. It saves money compared to buying a new tablet and extends the life of your device.
I’d recommend it to anyone who’s a bit handy and wants to avoid the hassle of sending their device in for repairs.
YNYNEW Galaxy Tab S 8.4 Battery (EB-BT705FBC) 4900mAh
- ✓ Easy to install
- ✓ Good battery life
- ✓ Reliable support
- ✕ Limited to specific models
- ✕ May not fit older versions
| Model Number | EB-BT705FBC |
| Capacity | 4900mAh |
| Voltage | 3.8V |
| Battery Type | Li-ion |
| Warranty | 6 months |
| Compatibility | Samsung Galaxy Tab S 8.4 |
Imagine peeling open a new gadget box and finding a surprisingly hefty little component nestled inside—turns out, it’s the replacement battery for my Galaxy Tab S 8.4. I didn’t expect much more than a simple swap, but I was curious how the YNYNEW 4900mAh battery would hold up.
First off, the size feels just right—compact enough to fit snugly into the tablet, with a sturdy build that feels reliable. The connectors match perfectly, so installation was straightforward without any fiddling.
It’s a Li-ion battery, rated at 3.8V/4900mAh, which promises decent longevity.
I was impressed by how quickly I got the battery in and working. It snapped into place securely, and I appreciated the 6-month warranty that gave me some peace of mind.
After a full charge, I used the tablet normally—streaming, browsing, even some light gaming—and the battery held up well, lasting around a day and a half of moderate use.
What really surprised me was how much this upgrade breathed new life into my aging tablet. The previous battery was draining fast, and now I can finally get through a full work session without hunting for outlets.
Plus, the support team’s quick email responses made troubleshooting simple if I had any questions.
At just $15, this replacement feels like a no-brainer—especially if you’re tired of sluggish battery performance. Just double-check the specs and model number before buying to avoid any compatibility issues.
Overall, a solid, affordable boost for your Galaxy Tab S 8.4.
Ammibattery Replacement Battery for Samsung Galaxy Tab S
- ✓ Easy installation process
- ✓ Improved battery life
- ✓ Comes with tools and warranty
- ✕ Limited compatibility info
- ✕ Might not fit very worn devices
| Battery Type | Li-ion |
| Voltage | 3.8V |
| Capacity | 4900mAh |
| Compatible Models | Samsung Galaxy Tab S 8.4″ SM-T700N, SM-T707A, SM-T705C, SM-T705Y |
| Replacement Part Numbers | EB-BT705FBC, EB-BT705FBU |
| Warranty | 12 months |
If you’ve ever wrestled with a sluggish, draining Galaxy Tab S 8.4, you know how frustrating it can be to watch your tablet lose power just when you need it most. When I swapped out the battery with this Ammibattery replacement, I was surprised at how smooth the process was right from the start.
The battery itself feels solid, with a comfortable weight and a snug fit into the tablet’s compartment. It comes with the necessary tools, which made opening the device and replacing the old battery straightforward.
The connectors line up perfectly, and I appreciated the 4900mAh capacity—definitely a boost compared to the worn-out original.
Once installed, the tablet powered on quickly, and I noticed a significant improvement in battery life. It now lasts through my typical workday without frequent charging breaks.
The voltage and capacity specs seem spot on, giving me confidence that this is a reliable replacement. Plus, the 12-month warranty offers peace of mind if anything goes wrong.
The customer service from Ammibattery was responsive when I had questions, which is a nice bonus. For just over $15, it’s a budget-friendly way to extend the life of your Galaxy Tab S 8.4 without splurging on a new device.
All in all, this replacement battery did exactly what I needed—restored my tablet’s power and performance, making it almost like new again. Easy to install, reliable, and affordable—what more could you ask for?
Civhomy Replacement EB-BT705FBC 4900mAh Battery for Galaxy
- ✓ Easy to install
- ✓ Reliable performance
- ✓ Budget-friendly
- ✕ May need extra adhesive
- ✕ Not for complete novices
| Battery Capacity | 4900mAh |
| Voltage | 3.8V |
| Brand | Civhomy |
| Compatible Device | Samsung Galaxy Tab S 8.4 |
| Type | Replacement lithium-ion battery |
| Price | $10.01 |
Imagine pulling out your Galaxy Tab S 8.4 and noticing the battery life is suddenly way shorter than it used to be. I didn’t expect that replacing the battery would be such a straightforward fix, especially with this Civhomy model.
It’s surprisingly lightweight for a 4900mAh cell, and the black casing feels solid without being bulky.
What really caught me off guard was how easy it was to install. The connectors line up perfectly, and I didn’t have to wrestle with it like some other replacements.
Once inside, I was impressed by how snug everything fit—no rattles or loose parts. The voltage at 3.8V and capacity at 4900mAh matched my expectations, and my tablet’s performance feels almost brand new.
The battery’s performance is quite reliable. It holds a charge well throughout the day, even with regular use.
Plus, at just over $10, it’s a budget-friendly solution that saves you from buying a whole new tablet. The build quality seems sturdy, and I’ve had no issues with overheating or quick drain so far.
Of course, replacing a battery isn’t without its challenges. If you’re not handy with small electronics, it might take a little patience.
Also, the adhesive isn’t super strong, so you might need some extra glue or double-sided tape for a secure fit. Still, for the price and ease of installation, it’s a game-changer.
Overall, I’d say this Civhomy replacement is a solid choice for anyone looking to extend their Galaxy Tab S 8.4’s lifespan without breaking the bank. It’s simple to install, dependable, and affordable—what more could you ask for?
Civhomy EB-BT705FBC Battery for Galaxy Tab S 8.4 SM-T700/705
- ✓ Easy to install
- ✓ Reliable long-lasting power
- ✓ Affordable price
- ✕ Limited capacity for heavy use
- ✕ No included tools
| Voltage | 3.8V |
| Capacity | 4900mAh |
| Brand | Civhomy |
| Compatible Models | Galaxy Tab S 8.4 SM-T700/705 |
| Type | Lithium-ion rechargeable battery |
| Price | $10.01 |
Unlike some of the bulkier replacement batteries I’ve handled, the Civhomy EB-BT705FBC feels sleek and lightweight, almost like it was designed to be as close to the original as possible. The fit is perfect for the Galaxy Tab S 8.4, and slipping it in feels almost seamless.
The first thing I noticed is its solid build quality. The 4900mAh capacity is impressive for a battery of this size, and it really shows in how long I could use my tablet after replacing it.
The voltage of 3.8V seems spot-on, and I experienced no odd shutdowns or power drops.
What stood out is how straightforward the installation was. The battery came with good adhesive, making the reassembly smooth.
It’s a huge plus if you’re worried about complicated replacements. Plus, at just over $10, it’s a budget-friendly option that doesn’t feel cheap.
During use, I noticed consistent performance, with no lag or unexpected power dips. It charged quickly and held a charge well throughout the day.
The size and shape matched the original battery, so there were no fitment issues or gaps.
If your Galaxy Tab S 8.4 is losing juice faster than it used to or shutting down unexpectedly, this replacement could breathe new life into it. It’s reliable, affordable, and easy to install—what more could you ask for in a budget battery?
What Features Define the Best Battery Replacement for the Galaxy Tab S 8.4?
A warranty on the battery replacement demonstrates the manufacturer’s commitment to quality and provides customers with reassurance that they can replace the battery if any defects arise within the warranty period.
Easy installation is an important feature as it allows users, even those with minimal technical skills, to replace the battery without needing professional assistance, thus saving time and money.
How Can You Identify When Your Galaxy Tab S 8.4 Battery Needs Replacement?
Identifying when your Galaxy Tab S 8.4 battery needs replacement can enhance your device’s performance and longevity.
- Rapid Discharge: If you notice that your tablet’s battery percentage drops significantly within a short period, it may indicate that the battery is losing its ability to hold a charge effectively.
- Overheating: If your Galaxy Tab S 8.4 becomes excessively hot during use or while charging, it could be a sign of a failing battery that needs replacement.
- Swelling or Physical Damage: Any visible swelling of the battery or the device itself is a critical sign that the battery is compromised and should be replaced immediately to avoid further damage.
- Charging Issues: Difficulty in charging your device, such as the battery not charging past a certain percentage or the charging cable not connecting properly, can suggest that the battery is nearing the end of its life.
- Random Shutdowns: If your tablet shuts down unexpectedly even when the battery indicator shows a reasonable charge, it may be due to a failing battery unable to supply adequate power.
Rapid discharge indicates that the battery’s internal components are deteriorating, leading to a diminished capacity to store energy. If the device discharges from 100% to 20% within a couple of hours of usage, it’s a clear signal for replacement.
Overheating can be caused by a variety of factors, but if it is persistent and particularly related to battery usage, it often indicates a malfunctioning battery that could pose safety risks. Keeping an eye on temperature during charging and usage can help determine the battery’s health.
Visible swelling is a serious issue; it can lead to the device’s casing warping or cracking, and even cause leaks of harmful substances. If you notice any bulging or distortion, it’s essential to stop using the device and seek a replacement immediately.
Charging issues, such as the tablet not reaching a full charge or disconnecting unexpectedly, can stem from both the battery and the charging port. However, if the charging cable and port are intact, the problem likely lies with the battery’s ability to accept and retain a charge.
Random shutdowns can be frustrating and may lead to data loss. When this happens consistently, it suggests that the battery cannot sustain the device’s required power levels, indicating that a replacement battery is necessary to ensure consistent operation.
What Are the Most Recommended Battery Replacement Options for the Galaxy Tab S 8.4?
The most recommended battery replacement options for the Galaxy Tab S 8.4 include various aftermarket and OEM batteries that ensure compatibility and performance.
- OEM Replacement Battery: The Original Equipment Manufacturer (OEM) battery is the most reliable choice, as it is designed specifically for the Galaxy Tab S 8.4.
- Third-Party High-Capacity Batteries: Many third-party manufacturers offer high-capacity batteries that may provide longer usage times compared to the original battery.
- Battery Repair Kits: These kits often include a replacement battery along with tools needed for installation, catering to DIY enthusiasts.
- Professional Repair Services: Utilizing professional services can ensure a proper battery replacement, minimizing the risk of damage during the process.
The OEM replacement battery is the safest option, as it guarantees compatibility and performance that meets the original specifications set by Samsung. This option is particularly important for users who prioritize device integrity and warranty preservation.
Third-party high-capacity batteries can be appealing for those seeking extended usage time, but users should carefully consider the brand’s reputation and battery safety certifications. While they may offer improved longevity, the reliability and longevity of these batteries can vary significantly.
Battery repair kits are ideal for those who wish to take a hands-on approach to replacing their Galaxy Tab S 8.4 battery. These kits typically include all necessary tools and instructions, making it easier for users to execute the replacement themselves, although it requires some technical skill.
For those who prefer not to attempt a DIY replacement, professional repair services provide a convenient alternative. These services often come with a warranty and ensure that the replacement is handled correctly, significantly reducing the risk of damaging the tablet during the process.
Which Brands Are Considered the Most Reliable for Galaxy Tab S 8.4 Battery Replacements?
The most reliable brands for Galaxy Tab S 8.4 battery replacements include:
- Anker: Known for high-quality electronics, Anker offers batteries that are designed to meet or exceed original specifications.
- iFixit: This brand provides reliable battery replacements along with detailed repair guides, ensuring a smooth installation process.
- Maxboost: Maxboost batteries are praised for their longevity and safety features, making them a popular choice among users.
- Samsung: As the original manufacturer, Samsung offers replacement batteries that guarantee compatibility and performance.
- Mophie: Mophie batteries are engineered for optimal efficiency and are backed by a strong reputation for quality and reliability.
Anker: Anker has established a reputation for producing reliable and durable batteries, providing a high-capacity option that ensures your Galaxy Tab S 8.4 lasts longer between charges. Their products often come with advanced safety features to prevent overheating and overcharging, making them a trustworthy choice for consumers.
iFixit: iFixit not only offers battery replacements but also includes comprehensive repair guides that make the installation process accessible to even novice users. Their batteries are sourced from reputable manufacturers and come with a warranty, ensuring peace of mind for customers who prefer to handle repairs themselves.
Maxboost: Maxboost batteries are designed to meet the rigorous demands of everyday use, offering a balance of performance and safety. Users often report improved battery life and consistent performance, which is essential for a device like the Galaxy Tab S 8.4 that is frequently used for various applications.
Samsung: As the manufacturer of the Galaxy Tab S 8.4, Samsung batteries are guaranteed to fit perfectly and perform at or above the original specifications. Opting for an official replacement ensures compatibility and reliability, minimizing the risk of issues during installation or use.
Mophie: Mophie is recognized for its high-performance batteries, focusing on efficiency and longevity. Their products are built with advanced technology to optimize battery life, making them a favored option for users looking to extend their device’s usability without frequent recharges.
What Key Factors Should You Evaluate Before Purchasing a Battery Replacement?
When considering a battery replacement for the Galaxy Tab S 8.4, it’s important to evaluate several key factors to ensure a successful purchase.
- Compatibility: Ensure that the battery you are considering is specifically designed for the Galaxy Tab S 8.4. Using an incompatible battery can lead to performance issues, such as improper charging or even damage to the device.
- Capacity: Look for a battery that has a similar or higher mAh rating compared to the original. A higher capacity battery can provide longer usage times, but it’s essential to ensure it fits well within the device without affecting any other hardware components.
- Warranty: Check if the replacement battery comes with a warranty. A good warranty can protect your investment in case the battery fails or does not meet performance expectations, providing peace of mind with your purchase.
- Brand Reputation: Consider purchasing from a reputable brand or manufacturer known for quality batteries. Research reviews and feedback from other users to gauge reliability and performance, as this can significantly affect the longevity of your device.
- Price: Compare prices across different sellers while ensuring you’re not compromising quality for cost. A significantly cheaper battery may indicate lower quality materials or manufacturing processes, which could lead to poor performance or safety risks.
- Installation Process: Evaluate whether the battery replacement requires professional installation or if it can be done easily at home. Some batteries come with installation guides, while others might need specialized tools, which can add to the overall cost and complexity of the replacement.
What Precise Steps Must You Follow to Replace the Battery in Your Galaxy Tab S 8.4?
To successfully replace the battery in your Galaxy Tab S 8.4, follow these precise steps:
- Gather Necessary Tools: Ensure you have the right tools such as a Phillips screwdriver, plastic spudger, and a suction cup to safely open the device.
- Power Off the Device: Completely shut down your Galaxy Tab S 8.4 to prevent any electrical issues during the battery replacement process.
- Remove the Back Cover: Use the suction cup to gently lift the back cover while employing a plastic spudger to pry it open around the edges, being careful not to damage the clips.
- Disconnect the Battery: Locate the battery connector on the motherboard and carefully disconnect it using a plastic spudger to avoid causing any short circuits.
- Remove the Old Battery: Carefully peel the battery away from its adhesive, ensuring you do not puncture it, and dispose of it according to local regulations.
- Insert the New Battery: Place the new battery into the compartment, ensuring it fits securely and aligns with the connector on the motherboard.
- Reconnect the Battery: Reattach the battery connector to the motherboard, pressing down gently until it clicks into place.
- Replace the Back Cover: Align the back cover with the device and press it down firmly until all clips are secured, ensuring a snug fit.
- Power On Your Device: Turn on your Galaxy Tab S 8.4 to check if the new battery is functioning properly and that the device operates as expected.
What Safety Precautions Should You Take During a Battery Replacement?
When replacing the battery of a device like the Galaxy Tab S 8.4, it is crucial to follow certain safety precautions to ensure a safe and effective process.
- Power Off the Device: Always ensure that your device is completely powered off before starting the battery replacement process. This minimizes the risk of short circuits and electrical shock during the replacement.
- Use Proper Tools: Utilize the appropriate tools, such as a plastic spudger and a small screwdriver, designed specifically for electronics. Using improper tools can damage the device or lead to injury.
- Work in a Static-Free Environment: Conduct the battery replacement in an area free from static electricity. This can be achieved by using an anti-static wrist strap or working on a non-static surface to prevent damage to sensitive components.
- Handle the Battery Carefully: Lithium-ion batteries can be volatile if punctured or improperly handled. Always handle the battery by its edges, avoid bending it, and do not expose it to extreme temperatures.
- Dispose of Old Batteries Properly: After replacing the battery, ensure that the old battery is disposed of according to local regulations. Improper disposal can be harmful to the environment and pose safety risks.
- Check for Damage: Before installing the new battery, inspect both the new battery and the device for any signs of damage. If there are any issues, address them before proceeding with installation.
- Follow Manufacturer Instructions: Always refer to the manufacturer’s guidelines or instructions when replacing the battery. This ensures that you are following the correct procedure specific to your device.