Samsung Phone Repair
Samsung Battery Replacement
A Samsung Galaxy battery that can't make it through the afternoon, or one that has started to swell and push the back panel out, needs urgent attention. At Mr Gadget in Rickmansworth we replace batteries in Galaxy S, A, M, Z Fold, and Z Flip models using high-quality cells matched to the original mAh rating.
Samsung's adhesive-heavy construction means battery replacement requires careful heat treatment and precision tools to avoid damage to the display cable and wireless charging coil. Our technicians have the right equipment for every Galaxy variant. After the swap we verify the battery percentage reading and confirm the device charges correctly via USB-C and wireless. All replacements carry a 12-month warranty.
Book This Repair →Common Symptoms
Do Any of These Sound Familiar?
These are the exact phrases our customers search for before they visit us — if you recognise any of them, bring your device in for a free assessment.
Walk in Mon–Sat 9am–5pm or book your repair online. No appointment needed.
Why Mr Gadget
What Makes Us Different
Battery swaps take under an hour on most models — you don't need to leave your device overnight.
We fit cells matched to the original mAh or Wh rating — battery health resets to 100%.
Parts and labour covered for 12 months — no hidden charges.
We verify charge speed, health indicator, and wireless charging after the swap.
How It Works
Our Repair Process
Walk in to our Rickmansworth store — no booking required.
We confirm battery health percentage and check for swelling or secondary faults.
The old cell is carefully removed and a new full-capacity battery is installed.
Charge speed, health percentage, and all charging modes are verified before return.
Areas We Cover
Serving 24 Local Towns
Based in Rickmansworth, we serve customers from across South West Hertfordshire and North West London. Click your nearest town to see all available repairs and town-specific pages.
✓Rickmansworth▼
✓Watford▼
✓Chorleywood▼
✓Croxley Green▼
✓Northwood▼
✓Harefield▼
✓Chalfont St Peter▼
✓Bushey▼
✓Moor Park▼
✓Pinner▼
✓Harrow▼
✓Gerrards Cross▼
✓Leavesden▼
✓Garston▼
✓Ruislip▼
✓Kings Langley▼
✓Abbots Langley▼
✓South Oxhey▼
✓Denham▼
✓Carpenders Park▼
✓Maple Cross▼
✓Mill End▼
✓Northwood Hills▼
FAQ
Frequently Asked Questions
Most models take under an hour. We'll confirm the time when you drop off.
Yes — a new cell resets the battery health indicator to 100%.
No — walk-ins are welcome Mon–Sat 9am–5pm at our Rickmansworth store.
All battery replacements carry a 12-month warranty on parts and labour.
Yes — we verify charging speed, battery indicator accuracy, and all associated features after the swap.
Ready to Get Your Samsung Fixed?
Walk in Mon–Sat 9am–5pm — no appointment needed. Or book online, call us, or message on WhatsApp.
Book Online WhatsApp 07711 272860 📞 01923 934966