Samsung Galaxy S10+ Battery Replacement Guide

A Samsung Galaxy S10+ with a worn battery can usually be brought back to a full day's use with a replacement 4,100mAh battery, which costs from £5.21 at E-Tech61 (checked 15 October 2026). The repair is done through the glued glass back: you heat and remove the back panel, lift the wireless charging coil and covers, disconnect the battery and carefully release its strong adhesive. It is an intermediate DIY repair that needs patience, heat and plastic tools, and some risk to the back glass. This guide covers how to check battery health, how to confirm the right battery for your S10+, how the repair works, safety, and whether a new battery is worth it on a 2019 phone.

Signs your Galaxy S10+ battery is worn

The battery drops quickly from a full charge, even with light use.
The phone shuts down at 10–30%, or in cold weather.
It gets unusually warm while charging or during light use.
Charging takes much longer than it used to, or stalls at a certain percentage.
The back glass is lifting or the screen is bulging. That indicates a swelling battery. Stop charging and using the phone straight away and see the safety section below.

Before you blame the battery, rule out software. Check Settings > Battery and device care > Battery for apps using unusual amounts of power, and make sure the phone is on the latest software available for it.

How to check Galaxy S10+ battery health

Samsung phones of this age do not show a simple "battery health percentage" in the standard Settings menu. You can still get a useful picture:

Samsung Members app: open the app, go to Support (or Get help), then Phone diagnostics and choose Battery status. It reports the battery's condition, for example "Normal" or "Weak", and its estimated life. Menu names vary slightly between versions.
Battery usage screen: Settings > Battery and device care > Battery shows usage since the last full charge. If no app explains the drain, the battery is the likely cause.
A timed test: charge to 100%, set brightness to about half, play a downloaded video and note how long it lasts compared with when the phone was new.

If diagnostics report the battery as weak, or the phone cannot get through a day of normal use, a replacement is worthwhile. Samsung's UK support site covers diagnostics and official service options.

How long does a Galaxy S10+ battery last?

When new, the S10+'s 4,100mAh battery typically lasted a full day for most users. Lithium-ion batteries lose capacity with charge cycles and age, so after several years of use many S10+ batteries no longer get through a day. How quickly yours wore depends on how often it was charged, how hot it got and how heavily it was used. A new battery restores the phone's capacity, but not its software support.

Is it worth replacing the battery on a Galaxy S10+?

The Galaxy S10+ launched in 2019. Its last major Android version was Android 12, and it is unlikely to receive further updates. You can check its current version and security patch level using Google's guide to checking your Android version. A new battery makes sense if:

the phone otherwise works well, with no screen or charging port faults;
you use it as a backup phone, a child's phone, a camera or a media player;
you are refurbishing it for resale and the battery is the main fault.

It makes less sense if you need it as your main phone for banking or work apps that require current security updates. In that case, a newer phone is the safer choice.

Which replacement battery fits?

Check your model in Settings > About phone. The Galaxy S10+ sold in the UK is usually the SM-G975F (single or dual SIM). Do not confuse it with:

the Galaxy S10 (SM-G973F), which uses a smaller battery;
the Galaxy S10e (SM-G970F), which uses a different battery again;
the Galaxy S10 5G, a larger phone with its own battery.

The S10+ battery is rated at 4,100mAh. A listing that names the Galaxy S10 Plus and states 4,100mAh is the right type. E-Tech61 lists two S10 Plus batteries, both 4,100mAh: one at £5.21 and one named for the SM-G975F at £8.89. Check each product page to choose between them.

Tools you need

Heat source: heat gun on low, heat pad or hair dryer.
Suction cup, thin plastic picks and a plastic spudger.
Phillips #00 screwdriver.
Isopropyl alcohol, 90% or higher, and a syringe or dropper.
A plastic card for lifting the battery.
Replacement back glass adhesive.
Eye protection and a fire-safe work surface.

How to change the Galaxy S10+ battery (overview)

This overview explains what is involved. For detailed photos, see iFixit's Galaxy S10+ repair guides.

Back up your phone and let the battery run down below 25%. A lower charge reduces the risk if the battery is damaged.
Power off and remove the SIM tray.
Heat the back glass evenly around the edges to soften the adhesive.
Lift the back glass with a suction cup, slide a pick in, and work slowly around the edges, reheating as needed. Keep picks shallow near the camera area. The back glass is the part most likely to crack.
Remove the screws holding the wireless charging coil and NFC assembly and the board cover, and lift them out.
Disconnect the battery connector before anything else.
Release the battery adhesive. Apply isopropyl alcohol around and under the battery edges, wait a minute for it to soften the glue, then lift gently with a plastic card from the edge. Work slowly and add more alcohol as needed. Never lever with metal tools, bend or puncture the battery.
Clean the battery recess of old adhesive and let any alcohol evaporate.
Fit the new battery with thin adhesive strips and connect it.
Test before sealing: power on, check charging, wireless charging, NFC and that the battery percentage rises.
Refit the coil and covers, apply new back glass adhesive, press the back glass on and clamp gently while it sets.

After fitting

Charge to 100% and use the phone normally. The battery percentage reading may take a few charge cycles to settle.
Check that wireless charging works, as the coil connects through the back assembly.
Do not rely on water resistance after opening the phone, even with new adhesive.

Common mistakes

Rushing the back glass. Not enough heat leads to cracked glass. If it cracks, cover it with tape to contain fragments and plan to replace it.
Prying the battery with metal tools. This can puncture the cell and cause a fire.
Forgetting to disconnect the battery before working on other parts.
Not testing before sealing, which means reopening the back glass.
Buying the S10 or S10e battery by mistake. Check the model and capacity.

Battery safety

Swollen battery: if the back is lifting, stop charging and using the phone. Keep it on a non-flammable surface away from anything that can burn and replace the battery promptly.
Puncture risk: if a battery smokes, hisses or heats up during removal, move away, ventilate the room and do not breathe the fumes.
Disposal: do not put old lithium-ion batteries in household bins or recycling. Take them to a battery or electrical recycling point; many supermarkets and household waste centres have one.
Charging a new battery: for the first few charges, charge on a hard surface where you can keep an eye on it.

DIY or repair shop?

	DIY	Repair shop
Cost	Battery, adhesive and tools	Battery plus labour
Main risk	Cracking the back glass; damaging the battery	Lower, especially with a warranty
Time	One to two hours for a first attempt, plus adhesive setting	Often same day

If you are comfortable with heat and plastic tools, DIY is cheap and achievable. If you have never opened a phone, a local repair shop can fit the battery you supply. If you buy a part from a UK business and it is faulty, you have rights under consumer law; see GOV.UK's guide to consumer protection rights.

Troubleshooting after the swap

Phone will not power on: reseat the battery connector firmly and connect a charger for 30 minutes; new batteries can ship with a low charge.
Battery percentage jumps around: let it run down and fully charge two or three times so the reading recalibrates.
Wireless charging or NFC not working: the coil assembly is probably not seated or its contacts are bent. Reopen and check before the back adhesive fully sets, if possible.
Back glass not sitting flat: leftover adhesive or a misplaced cover. Clean the frame edge fully and refit.
Phone gets hot: stop using it and check the battery is the correct model and is not damaged.

Questions to ask a repair shop

Which battery will you fit, and is it new?
Do you replace the back glass adhesive, and what happens if the back glass cracks?
What warranty covers the battery and the labour?

How to make your S10+ battery last longer

Turn on battery protection in the battery settings, which limits charging to 85% on this generation of Samsung software, if available on your version.
Use dark mode; it saves power on AMOLED screens.
Lower the screen resolution to FHD+ in display settings; the S10+ supports WQHD+ but uses more power at higher resolution.
Turn off the Always On Display if you do not use it.
Put unused apps to sleep in the battery settings.
Avoid heat, such as leaving the phone in a hot car or charging under a pillow.

Galaxy S10+ batteries from E-Tech61

E-Tech61 ships replacement parts from Manchester, with same-day dispatch on orders placed before 4pm Monday to Friday and 30-day returns on unused items. Both batteries below are rated at 4,100mAh for the Galaxy S10 Plus. Prices were read from our store on 15 October 2026.

For Samsung Galaxy S10 Plus Replacement Battery 4100mAhBuy now – £5.21

For Samsung Galaxy S10 Plus (SM-G975F) Replacement Battery 4100mAhBuy now – £8.89

For back glass, charging ports and other parts, browse our Galaxy S10 Plus (G975F) parts. If you work on newer Samsung models too, see our Galaxy S23 Plus parts, our Galaxy S21 Ultra battery replacement guide, our guide to S22 Ultra screen replacement kits and our Galaxy S8 Plus OLED replacement guide.

Frequently asked questions

How do I change the Samsung S10 Plus battery?

Heat and remove the back glass, remove the wireless charging coil cover, disconnect the battery, soften its adhesive with isopropyl alcohol and lift it out with a plastic card. Fit the new battery, test, then reseal the back with new adhesive.

How do I check Samsung S10 Plus battery health?

Use the Samsung Members app's phone diagnostics and run the battery status test. It reports whether the battery is normal or weak.

How do I remove the Samsung S10 Plus battery?

After removing the back glass and disconnecting the battery, apply isopropyl alcohol under the edges to soften the glue and lift gently with a plastic card. Never use metal tools or bend the battery.

How much is a Samsung S10 Plus battery?

At E-Tech61, replacement 4,100mAh S10 Plus batteries were £5.21 and £8.89 on 15 October 2026. Fitting by a shop adds labour.

How long does a Samsung S10 Plus battery last?

A new battery typically lasts a full day of normal use. Worn batteries in older S10+ phones often fall well short of that, which is when replacement helps.

Will wireless charging still work after a battery change?

Yes, as long as the wireless charging coil and its connection are refitted correctly. Test it before sealing the back glass.

Summary

A new battery is a cheap, effective fix for an S10+ that no longer lasts the day, provided the rest of the phone works well. Check battery status in Samsung Members, confirm your model is the S10+ (SM-G975F), then replace the battery carefully through the back glass with heat, plastic tools and isopropyl alcohol. Choose your battery above; orders before 4pm ship the same day.