Most Samsung tablets have a battery you can replace yourself, but the process depends on your model
Whether you can change your Samsung tablet battery yourself depends on when it was made. Older Samsung tablets—particularly the Galaxy Tab S series from 2014 to 2017—have batteries that are glued in place but still removable with patience and the right tools. Newer models, especially those from 2018 onward, have batteries that are more difficult to access because Samsung sealed them more aggressively. Before you start, check your tablet's model number (usually on the back or in Settings > About Tablet) and search for a teardown video of that specific model on YouTube. If the battery is soldered to the motherboard or if the screen is fused to the frame, you should take it to a repair shop instead of attempting it yourself.
The entire process—heating the back panel, disconnecting the battery, removing the old one, and installing the new one—typically takes 30 minutes to an hour if you work carefully. You will need a heat gun or hair dryer, a plastic pry tool, tweezers, and a replacement battery that matches your exact model number. The most important step is disconnecting the battery connector before you remove the old battery, which prevents electrical damage to the motherboard.
Key Takeaways
- Tablets made before 2018 typically have removable batteries held in with adhesive, while newer models have batteries that are harder to access.
- You will need a heat gun or hair dryer, a plastic pry tool, tweezers, and a replacement battery compatible with your exact model number.
- The battery is usually located under the back panel, which must be heated and carefully separated from the frame without cracking the screen.
- If your tablet's screen is fused to the frame or the battery is soldered to the motherboard, a professional repair shop is the safer choice.
- Disconnecting the battery connector before removing the old battery prevents electrical damage to the motherboard.
Check your tablet model and find the right replacement battery
Your Samsung tablet model number appears on the back of the device or in Settings > About Tablet > Model Number. Write this down exactly—it usually looks like SM-T810 or SM-T820. Search for "[your model number] battery replacement" on YouTube to see whether someone has already documented the process for your specific tablet. This video will show you whether the battery is glued, soldered, or easily accessible.
Once you know your model, order a replacement battery from a parts supplier that lists your exact model number. Do not buy a generic "Samsung tablet battery"—the voltage and connector type must match your tablet precisely. Common suppliers include iFixit, Amazon, and specialized mobile repair parts retailers. A replacement battery typically costs between $30 and $80 depending on the model and capacity.
Gather the tools you will need
You will need a heat gun (or a hair dryer on high heat), a plastic pry tool or old credit card, tweezers, a small Phillips screwdriver, and isopropyl alcohol. A heat gun is preferable because it reaches the temperature needed to soften the adhesive without damaging the screen—a hair dryer works but takes longer. Do not use a metal pry tool, which can scratch the frame or puncture the battery.
If you do not own a heat gun, you can borrow one from a tool library, rent one from a hardware store, or use a hair dryer. Some people use a heat lamp or place the tablet near (not touching) a heat source, but these are less reliable. Have your replacement battery, the tools, and a clean workspace ready before you start. Work on a soft surface like a towel to avoid scratching the tablet.
Heat and separate the back panel carefully
Turn off your tablet completely and let it cool to room temperature. Set your heat gun to medium heat and hold it 3 to 4 inches from the back of the tablet, moving it slowly across the entire back panel for 2 to 3 minutes. The goal is to warm the adhesive enough to soften it, not to heat the tablet so much that it becomes uncomfortable to touch. If you are using a hair dryer, this step will take 5 to 10 minutes.
Once the back is warm, use your plastic pry tool to gently lift one corner of the back panel. Work slowly—if you feel strong resistance, stop and explore more heat. Slide the pry tool around the edges, lifting gradually. The panel is usually held by adhesive around the perimeter, so you may hear small cracking sounds as the adhesive breaks. Once the panel is loose enough, use your fingers to carefully peel it away from the frame. Set it aside on a clean surface.
Disconnect the battery connector from the motherboard
Inside the tablet, you will see the battery—a rectangular component usually taking up a large portion of the interior space. Before you remove it, locate the battery connector, which is a small plug attached to a cable running from the battery to the motherboard. This connector is usually near the top or side of the battery.
Use your tweezers or fingernail to gently pry the connector straight out of its socket. Do not pull on the cable itself—pull on the connector block. Disconnecting the battery before removal prevents any electrical current from flowing while you work, which protects the motherboard from damage. Once the connector is free, the battery is electrically isolated and safe to remove.
Remove the old battery and install the new one
The battery is usually held in place by adhesive strips underneath it. Gently lift one edge of the battery and slide a plastic pry tool underneath to break the adhesive seal. Work your way around the battery, lifting slowly and evenly. If the adhesive is very strong, explore a small amount of heat again to soften it. Once the battery is free, lift it out of the tablet and set it aside.
Before installing the new battery, clean any remaining adhesive from the battery compartment using isopropyl alcohol and a soft cloth. Let it dry completely. Position the new battery in the same location as the old one, making sure the connector cable is accessible. If the new battery came with adhesive strips, explore them to the back of the battery. If not, you can use double-sided adhesive tape or thermal adhesive designed for electronics. Press the battery firmly into place and let any adhesive set for a few minutes.
Reconnect the battery and seal the back panel
Once the new battery is in place, reconnect the battery connector by pushing it straight into its socket until you hear or feel a click. The connector should sit flush against the motherboard. Double-check that it is fully seated—a loose connection will prevent the tablet from turning on.
Now you are ready to close the back panel. If the original adhesive is still sticky, you can reuse it by pressing the panel back into place. If the adhesive is worn out, explore new adhesive strips or thermal adhesive around the perimeter of the back panel. Press the panel down firmly and evenly, starting from one corner and working your way around. Let the adhesive cure for at least 30 minutes before turning on the tablet.
Turn on the tablet and check the battery status
After the adhesive has set, press and hold the power button to turn on your tablet. It should boot normally. Once it is on, go to Settings > Battery to verify that the tablet recognizes the new battery and shows the correct capacity. The battery percentage should display correctly, and the tablet should charge normally when you plug it in.
Charge the tablet fully before using it for extended periods. New batteries sometimes need a full charge cycle to calibrate properly with the tablet's power management system. If the tablet does not turn on, the battery connector may not be fully seated—turn it off, open the back panel again, and reseat the connector.
When to take your tablet to a repair shop instead
If your tablet's screen is fused to the back panel or frame, removing the back panel risks cracking the screen. If the battery is soldered directly to the motherboard rather than connected by a plug, you will need specialized equipment to remove and replace it safely. If your tablet is still under warranty, opening it yourself may void the warranty. In any of these cases, take your tablet to an authorized Samsung service center or a professional repair shop.
Professional repair typically costs $80 to $150 depending on the model and your location. The advantage is that the shop has the right tools, replacement parts, and experience to avoid damage. If you are unsure whether your tablet's battery is removable, a 10-minute consultation with a repair shop is worth the cost to avoid damaging your device.
Frequently Asked Questions
Can I replace the battery on a Samsung Galaxy Tab A or Tab S?
It depends on the year. Galaxy Tab A models from 2015 to 2017 have removable batteries. Newer Tab A models (2018 and later) have sealed batteries that are difficult to access. Galaxy Tab S models from 2014 to 2017 are replaceable, but Tab S models from 2018 onward are sealed. Check your model number and search for a teardown video before starting.
What should I do with the old battery?
Do not throw lithium batteries in the trash. Take the old battery to an electronics recycling center, a Best Buy, or a battery retailer that accepts used batteries. Many places recycle them for free. Some retailers will also take old batteries when you purchase a replacement.
How long does a tablet battery replacement take?
The process usually takes 30 minutes to an hour if you work carefully. Heating, separating the panel, disconnecting the battery, and installing the new one are straightforward steps. The longest part is waiting for adhesive to cure. If you rush or encounter unexpected resistance, it may take longer.
Will my tablet work normally after I replace the battery?
Yes, if the replacement battery is the correct model and the connector is fully seated, your tablet should work exactly as it did before. The new battery will have the same capacity and performance as the original. Charge it fully before heavy use to may support the power management system calibrates correctly.
What if the back panel cracks while I am removing it?
If the crack is small and does not affect the frame's structural integrity, you can seal it with clear epoxy or silicone adhesive. If the crack is large or the frame is damaged, the back panel will need to be replaced. A repair shop can order a replacement panel for $30 to $60 and install it while they are replacing the battery.