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Samsung Galaxy S25 Ultra Battery Replacement | Original Grade | 5000mAh Capacity | Fitting Labour Included
A fresh cell installed by our city technicians restores all-day stamina for heavy users.
Condition: New
Note: price and availability are subject to change without prior notice
Samsung Galaxy S25 Ultra Battery Replacement is available at Mascom International for KSh 3,000, covering a brand new, original-grade 5000mAh replacement battery and the labour to fit it. The Samsung Galaxy S25 Ultra Battery Replacement is carried out at our workshop in the Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, by technicians who open Samsung phones every working day. The 5000mAh rating matches the capacity listed for the Samsung Galaxy S25 Ultra, so your phone goes back to its rated cell size. One price covers the part and the work, with no separate fitting charge added at the counter.
Built for executives, sales teams, content creators and estate agents across Kenya, the Samsung Galaxy S25 Ultra Battery Replacement answers a common complaint: a phone that once lasted until bedtime now needs a charger by lunch. Heavy camera use, long video calls, M-Pesa payments and navigation on boda boda trips all wear down a lithium-ion cell over time. Fast drain, sudden shutdowns at mid charge and a warm back during light tasks are the usual signs. Swapping in a fresh 5000mAh cell brings back the endurance the phone had out of the box, without the cost of buying a different handset.
Where many Nairobi phone stalls quote one figure and add charges later, Mascom International fits each Samsung Galaxy S25 Ultra Battery Replacement at its own CBD workshop, where you can speak to the technician directly. Customers across Nairobi tell us the biggest relief is knowing exactly what went into their phone and what it cost. Back up your data first, then bring the phone to Kimathi Street, or send the exact model on WhatsApp to confirm before you travel. The Samsung Galaxy S25 Ultra Battery Replacement carries a 6-month warranty on the battery itself, handled by the same team that fitted it.
Common Questions About the Samsung Galaxy S25 Ultra Battery Replacement
How much is the Samsung Galaxy S25 Ultra Battery Replacement in Kenya?
The Samsung Galaxy S25 Ultra Battery Replacement costs KSh 3,000 at Mascom International in Nairobi CBD, and that price includes the labour to fit it. You get a fresh, original-grade 5000mAh battery installed in your own phone by our technicians. There is no extra workshop fee, and the job carries a 6-month warranty on the battery. Chargers are not part of the price; compatible USB-C chargers are sold separately at the store if your old one has worn out.
What are the signs that a Samsung Galaxy S25 Ultra needs a fresh battery?
A Samsung Galaxy S25 Ultra usually needs a fresh battery when it drains far faster than it used to or shuts off with charge still showing. Other warning signs include the back panel or screen lifting slightly, which points to a swollen cell, and the phone running hot during light tasks like chatting or browsing. Stop charging a swollen phone overnight and bring it in soon. Mascom International can look at the phone at our Kimathi Street workshop and tell you plainly whether the battery is the cause.
Will my Samsung Galaxy S25 Ultra stay water-resistant after the battery is changed?
Treat your Samsung Galaxy S25 Ultra as no longer water-resistant to its original IP68 rating once the battery has been changed. Reaching the battery means opening the back glass, which disturbs the factory seal. Our technicians close the phone carefully, but no workshop can promise the original rating of 1.5 metres for 30 minutes afterwards. Keep the phone away from swimming pools, heavy downpours and the sea at Mombasa or Diani. If you work outdoors, a sealed pouch is a cheap safeguard.
Is the Samsung Galaxy S25 Ultra Battery Replacement better value than buying a different phone?
For most owners, the Samsung Galaxy S25 Ultra Battery Replacement costs far less than replacing the phone outright, since KSh 3,000 is a small fraction of any comparable handset. A battery swap fixes endurance and leaves everything else as it is: the Snapdragon 8 Elite chip, the cameras and the software. The phone is listed for up to 7 major Android upgrades, so it has years of support left. Buy another phone only if the screen, frame or board is also damaged, or you simply want a different model.
How does the Samsung Galaxy S25 Ultra battery cope with KPLC power cuts and power-bank charging in Kenya?
A fresh 5000mAh cell gives your Samsung Galaxy S25 Ultra a full reserve again when KPLC cuts power across your estate for hours. Topping up from a power bank is safe, and the phone accepts up to 45W wired charging over USB-C PD 3.0 when the bank supports it. Users on Safaricom, Airtel Kenya or Telkom who keep mobile data and M-Pesa running all day will notice the difference most. Avoid cheap unbranded banks that run hot, because heat ages any battery faster.
How should I prepare my Samsung Galaxy S25 Ultra before the battery job?
Back up your Samsung Galaxy S25 Ultra to Samsung Cloud, Google or a computer before you bring it to Mascom International. Battery work does not touch your storage, but a backup protects you against any surprise. Be ready to unlock the phone so our technicians can test it after fitting, and remove your case before you arrive. If you are travelling in from Thika, Machakos or Kitengela, send your exact model on WhatsApp first so we can confirm the battery is ready.
Will wireless charging and 45W fast charging still work on my Samsung Galaxy S25 Ultra after the swap?
Yes, the Samsung Galaxy S25 Ultra keeps its charging features after the swap, because those depend on the phone's own circuitry rather than the cell alone. The phone supports 45W wired charging with a PD 3.0 adapter, 15W wireless charging with Qi2 Ready accessories, and 4.5W reverse wireless sharing for earbuds or a watch. Use a quality USB-C PD charger to reach the full wired rate. Mascom International sells compatible chargers and cables separately at our Kimathi Street store.
Who should book the Samsung Galaxy S25 Ultra Battery Replacement, and who should skip it?
Book the Samsung Galaxy S25 Ultra Battery Replacement if your phone is otherwise healthy but no longer lasts a working day, shuts down early or shows a swollen back. Skip it if your screen is also cracked or showing lines, because a screen replacement may be the better first step, and Mascom International offers that service too. Skip it as well if the phone has water damage or will not power on at all, since a full diagnosis comes first. Lawyers, journalists and field engineers gain most.
Technical Specifications
Battery Cell and Capacity
- Rated capacity of 5000mAh — the same figure listed for the Samsung Galaxy S25 Ultra, so endurance returns to its designed level.
- Lithium-ion chemistry — the standard rechargeable cell type in modern phones, holding plenty of energy for its thin size.
- Original-grade replacement battery — built to the shape, connector and capacity the phone expects, so it sits flush inside the frame.
- Fresh cell, never used before fitting — you start from full health rather than a part pulled from another handset.
- Internal battery, not user-removable — the cell sits under the back glass, so fitting needs proper heat and opening tools.
Compatibility and Model Matching
- Made for the Samsung Galaxy S25 Ultra only — our technicians confirm the model number in Settings before any work begins.
- Works whatever the storage size or colour of your phone, since those options do not change the battery bay.
- Not interchangeable with other Galaxy models — each phone uses its own battery outline, so always book your exact model.
- Phone dimensions of 162.8 x 77.6 x 8.2 mm stay the same — the battery fits inside without adding any bulk.
- SIM, eSIM and network settings stay untouched — the swap does not affect your mobile lines or saved Wi-Fi networks.
Charging Behaviour
- 45W wired charging over USB-C with PD 3.0 — Power Delivery is a charging standard, so use a matching adapter for full speed.
- About 65% charge in 30 minutes, as listed for the phone — handy when you have a short break between meetings.
- 15W wireless charging and Qi2 Ready — place the phone on a compatible pad at your desk and it charges without cables.
- 4.5W reverse wireless charging — lay earbuds or a watch on the phone's back to give them a quick top-up.
- The phone's own charge controls stay active — features such as battery protection limits keep working with the fresh cell.
Fitting Service at Our CBD Workshop
- Fitted by Mascom technicians at Old Mutual Building, First Floor Room 4, Kimathi Street — you hand the phone over in person.
- Labour included in the KSh 3,000 price — no separate fitting fee and no extra charge for opening the phone.
- Back glass opened with controlled heat and resealed after fitting — the panel sits flat once the job is done.
- Direct contact with the technician — ask questions before and after the job instead of dealing with a middleman.
- Water resistance treated as reduced after opening — the factory IP68 seal is disturbed, so keep the phone away from immersion.
Safety and Quality Checks
- Old cell inspected for swelling before removal — a swollen battery is handled carefully to avoid punctures or heat.
- Power-on test after fitting — the phone must boot, show a sensible charge level and accept a cable charge.
- Wireless charging tried on a pad — confirms the internal connections were seated properly during reassembly.
- Old battery set aside for proper disposal — lithium cells should never go into household bins or open burning.
- 6-month warranty on the replacement battery — covers manufacturing defects in the cell under normal use.
Package Contents
The Samsung Galaxy S25 Ultra Battery Replacement covers one item: a fresh, original-grade 5000mAh replacement battery, installed into your own phone by Mascom International technicians, with labour included in the price. You leave with your Samsung Galaxy S25 Ultra closed, powered on and running on the fresh cell. No charger, cable or retail box comes with the service, in line with how the phone itself ships without an adapter. Compatible chargers are sold separately at Mascom International if yours is worn or slow.
Warranty
Mascom International backs the Samsung Galaxy S25 Ultra Battery Replacement with a 6-month warranty covering manufacturing defects in the replacement battery under normal use. Keep your receipt, and bring the phone in person if the battery shows a fault within that period. Claims are handled at our Nairobi CBD service desk, Old Mutual Building, Kimathi Street.
Where to Buy the Samsung Galaxy S25 Ultra Battery Replacement in Kenya
Bring your phone to Mascom International at the Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. We are open Monday through Saturday, 9:00 AM to 7:00 PM, and you are welcome to watch the phone power on and charge before you leave. The battery sits inside the body, so the job suits every colour of the Samsung Galaxy S25 Ultra.
To confirm your model or ask a question first, reach us here:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
The fitting itself happens at our CBD workshop, but chargers, cables and other accessories you add to your order travel with pay-on-arrival delivery to all 47 counties. Nairobi and its environs get same-day delivery, while Nakuru, Eldoret, Kisumu, Mombasa and other major towns receive orders the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Your fresh cell is backed by the 6-month warranty above. We give honest specifications, an accurate price with nothing added at the counter, and after-sales support from a walk-in store you can return to.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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