Samsung Galaxy S22 Battery Replacement Cost and Guide

A Samsung Galaxy S22 battery replacement means fitting a new 3,700mAh battery behind the glued glass back. As a DIY job, the replacement battery from E-Tech61 costs £9.99 (checked 15 October 2026), plus tools and a new back adhesive if you do not already have them. The job is moderate in difficulty: you need to heat and lift the back glass, remove internal covers, disconnect the battery and release strong battery adhesive without bending or puncturing the old cell. Repair shops do this routinely; first-time DIYers should allow an hour or two and read every step first. The main qualification: once the back is opened, the phone's IP68 water resistance cannot be relied upon unless a new adhesive seal is fitted properly. This guide covers when to replace the battery, costs, tools, and the full process.

Does your S22 battery need replacing?

The Galaxy S22 launched in February 2022 with a 3,700mAh battery, according to the Galaxy S22 entry on Wikipedia. That was already a modest capacity for a flagship phone, so an ageing S22 battery shows its wear quickly. Common signs:

The phone no longer lasts a full day with your usual use.
The percentage drops suddenly, for example from 30% to 5%, or the phone shuts down with charge showing.
The phone gets unusually warm during light use or charging.
Charging takes much longer than it used to, or stops before reaching 100%.
The back glass is lifting or the screen is being pushed up. This indicates a swollen battery. Stop using and charging the phone immediately.

How to check Samsung S22 battery health

Samsung does not show a simple percentage health figure on every software version, but you have two good options:

Samsung Members app: open Samsung Members, go to Support > Phone diagnostics > Battery status. It reports the battery's condition as normal, weak or bad, along with its life rating.
Settings: on recent One UI versions, Settings > Battery (or Battery and device care) shows battery information, including charge cycles and health on supported versions.

If diagnostics report the battery as weak or bad, a replacement will usually restore day-long battery life.

How to make an S22 battery last longer before replacing it

If the battery is still healthy, these settings help: turn on the battery protection option that limits charging to around 80–85%, use adaptive refresh rate rather than forcing 120Hz all the time, reduce screen brightness or use adaptive brightness, turn on Power saving when you need it, and check Settings > Battery for apps using unusual amounts of power in the background. These steps cannot reverse wear, but they slow it and stretch daily life.

S22 battery replacement cost: DIY vs repair shop

Option	What you pay	Pros	Cons
DIY with an E-Tech61 battery	£9.99 for the battery (checked 15 October 2026), plus tools and back adhesive if needed	Lowest cost; done on your schedule	Risk of damage if rushed; water resistance depends on resealing
Independent repair shop	Varies by shop; ask for a written quote	Experienced technician; usually same day	Labour cost on top of the part
Samsung or authorised service	Check Samsung's current pricing	Manufacturer service process	Often the most expensive; may need booking

We do not quote repair shop labour rates because they vary widely by location and shop. Samsung also runs a self-repair programme in the UK for some models; see Samsung UK's self-repair page for which devices and parts are currently covered.

For repair shops, the S22 battery is a common job, and stocking batteries for the models you see most often saves waiting for parts. Browse all Samsung Galaxy S22 parts, and if a customer has the larger model, our Galaxy S22 Plus parts are listed separately. The S22, S22 Plus and S22 Ultra use different batteries, so always match the exact model.

For Samsung Galaxy S22 Replacement Battery 3700mAhBuy now – £9.99

Check you have the right model

The standard Galaxy S22 is model SM-S901B in the UK. Go to Settings > About phone to confirm the model number. The S22 Plus (SM-S906B) and S22 Ultra (SM-S908B) have different batteries with higher capacities, and they will not fit an S22. If you are working on an S22 Ultra, see our guide to S22 Ultra screen replacement kits for that model's parts.

Tools and parts you need

Replacement S22 battery (3,700mAh).
Heat source: a heat mat, heat gun on a low setting or a hair dryer.
Suction cup and thin plastic opening picks.
Phillips #00 screwdriver.
Plastic spudger and a plastic card for releasing the battery.
Isopropyl alcohol (high concentration) and a dropper, to soften battery adhesive.
New back glass adhesive, pre-cut for the S22.
Anti-static tweezers, and a tray to keep screws organised.

You can find these in our repair tools and adhesives collections. Never use metal tools to pry a lithium battery.

Safety first

Lithium-ion batteries can catch fire if punctured, bent sharply or short-circuited. Before you start:

Discharge the battery to below 25%. A lower charge reduces the energy released if the cell is damaged.
Work on a clear, non-flammable surface, away from anything that could catch fire.
Have a metal container or a bucket of sand nearby to hold a battery that starts to smoke or swell.
If the old battery is already swollen, do not press on it and consider taking the job to a professional.

How to replace a Samsung S22 battery: step by step

These steps describe the general process for the Galaxy S22. For detailed photos of each stage, the iFixit Galaxy S22 repair page is a useful companion. Take your time; most damage happens when a step is rushed.

Step 1: Power off and remove the SIM tray

Turn the phone off fully and remove the SIM tray so it does not get damaged when the back is removed.

Step 2: Heat the back glass

Warm the back panel evenly for a few minutes. A heat mat at around 80°C is ideal, or use a hair dryer moving constantly over the surface. The goal is to soften the adhesive, not to make the phone too hot to touch.

Step 3: Lift the back glass

Place a suction cup near the bottom edge, pull gently to create a small gap, and insert an opening pick. Slide the pick along the sides, adding more picks to stop the adhesive resealing. Reheat if the glass resists. Work slowly near the camera area, and do not insert picks too deeply, because the wireless charging coil and other components sit under the back glass.

Step 4: Remove the internal covers

Remove the Phillips screws holding the top cover over the motherboard and the bottom cover over the loudspeaker and charging area. Keep screws in order, as some lengths differ. Lift the covers away gently; the wireless charging and NFC coil assembly may be lightly attached, so release it carefully rather than pulling.

Step 5: Disconnect the battery

Use a plastic spudger to lift the battery connector off the motherboard. Always disconnect the battery before doing anything else inside the phone, to avoid short circuits.

Step 6: Release the battery adhesive

The S22 battery is held by strong adhesive with no pull tabs. Apply a few drops of isopropyl alcohol around the edges of the battery and wait a minute for it to soften the glue. Then slide a plastic card under the battery from the side, working slowly and evenly. Do not lever against the battery from one point, and never bend the battery. If it resists, add more alcohol and wait. Gentle heat from the front of the phone can also help, but avoid heating the battery directly.

Step 7: Fit the new battery

Clean old adhesive residue from the frame. Apply new adhesive strips if your battery does not come with adhesive pre-fitted. Place the new battery in position, connect it to the motherboard temporarily, and power on to check the phone boots and shows charge. Then power off and disconnect it again before reassembly.

Step 8: Reassemble and reseal

Reconnect the battery, refit the covers and screws, and clean the frame and back glass of old adhesive. Apply a new pre-cut back adhesive and press the glass down firmly. Clamp or place light weight on the back for some time to help the adhesive bond.

Step 9: Calibrate and test

Charge the phone to 100% and leave it charging a little longer, then use it normally. Check charging by cable and wireless charger, NFC payments, and that the battery percentage drops smoothly. Run Samsung Members diagnostics again to confirm the battery reports normal.

Common mistakes to avoid

Not disconnecting the battery first. Always disconnect before touching other components.
Prying with metal tools. Metal can puncture the cell.
Overheating the back glass. Too much heat can damage the screen, camera lenses and the battery itself.
Forgetting the back adhesive. Without a proper seal, dust and moisture can get in more easily.
Mixing up model batteries. S22, S22 Plus and S22 Ultra batteries are not interchangeable.

Disposing of the old battery

Never put a lithium battery in household rubbish or recycling bins, as damaged batteries can start fires in bin lorries and waste sites. Tape over the battery connector and take it to a battery recycling point. Many supermarkets have battery collection bins, and your local household waste recycling centre will accept them. Recycle Your Electricals has a postcode search for nearby recycling points.

For repair shops: getting it right first time

Battery jobs on recent Samsung flagships are quick once you have the routine. Practical tips:

Run diagnostics before you open the phone and record the result, so you have a before-and-after record for the customer.
Tell the customer up front that water resistance cannot be guaranteed after the back has been opened.
Check for screen damage before starting. Pressure from a swollen battery can crack OLED panels, and it is better to note this before the repair.
Keep pre-cut adhesive in stock for your most common models.

For a similar job on the previous generation, see our Samsung S21 Ultra battery replacement guide.

Frequently asked questions

How much does a Samsung S22 battery replacement cost?

The replacement battery from E-Tech61 costs £9.99 (checked 15 October 2026). A repair shop will add labour, which varies by shop, so ask for a written quote.

How do I check my Samsung S22 battery health?

Open the Samsung Members app and go to Support > Phone diagnostics > Battery status. Recent One UI versions also show battery information in Settings > Battery.

How do I replace the Samsung S22 battery?

Heat and lift the back glass, remove the internal covers, disconnect the battery, soften the adhesive with isopropyl alcohol, remove the old battery with a plastic card, fit the new one, reseal the back and test.

How do I remove a Samsung S22 battery?

After disconnecting it, apply isopropyl alcohol around the battery edges to soften the adhesive and slide a plastic card under it slowly. Never bend or puncture the battery.

How can I improve Samsung S22 battery life?

Turn on battery protection, use adaptive refresh rate and brightness, enable Power saving when needed and check for apps draining power in the background. If the battery is reported weak, replacement is the real fix.

Will my S22 still be waterproof after a battery replacement?

It was never fully waterproof; it was rated IP68 when new. After opening, water resistance depends on fitting a new back adhesive correctly, and it should not be relied upon.

How long does an S22 battery last before it needs replacing?

It depends on use and charging habits rather than a fixed age. Lithium-ion batteries lose capacity gradually with each charge cycle and with heat. Heavy users who charge daily and often run the phone hot will see wear sooner than light users who keep the battery between about 20% and 80%. Use the diagnostics in Samsung Members rather than the phone's age to decide.

Next step

If your S22 no longer lasts the day or diagnostics show a weak battery, a new 3,700mAh battery is the most cost-effective fix. Order the battery above, add any tools and back adhesive you need, and follow the steps carefully. Parts ship from E-Tech61 in the UK.