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Samsung Galaxy S21 FE 5G Battery Replacement | Original Grade | 4500mAh Capacity | Fitting Labour Included
Restore long-lasting power to your everyday Fan Edition so it keeps pace from morning commute to late evening.
Condition: New
Note: price and availability are subject to change without prior notice
Samsung Galaxy S21 FE 5G Battery Replacement is in stock at Mascom International, priced at KSh 2,900 for a brand new, original-grade 4500mAh replacement battery with fitting labour included. Samsung Galaxy S21 FE 5G Battery Replacement covers phones carrying model numbers that begin SM-G990, both the Snapdragon 888 and Exynos 2100 versions. The work happens at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, where our technicians open the phone, swap the cell and close it again. One price covers the part and the work, so the figure you see is the figure you pay at the counter.
Designed for content creators, estate agents and doctors on call, the Samsung Galaxy S21 FE 5G Battery Replacement handles the moment a reliable phone starts letting you down. Owners describe the same pattern: the phone needs a second charge before evening, drops from half to empty within an hour, or switches off in the cold of an early morning. The 6.4-inch screen, cameras and processor are usually fine. Only the cell has aged. Swapping it gives you back a phone that handles a property viewing in Kilimani, a shift in Upper Hill or a shoot across town.
Unlike other electronics retailers in Kenya that sell a battery and leave the fitting to a roadside stall, Mascom International installs it in-house and stands behind the result. At Mascom International, we're seeing more owners of this 2022 phone choose repair over replacement, because the handset still runs current apps well. The Samsung Galaxy S21 FE 5G Battery Replacement costs KSh 2,900, a small share of what a comparable new phone costs. Visit our Kimathi Street store with your phone backed up, or message its model number on WhatsApp so we can confirm the Samsung Galaxy S21 FE 5G Battery Replacement suits your unit.
Common Questions About the Samsung Galaxy S21 FE 5G Battery Replacement
What is the Samsung Galaxy S21 FE 5G Battery Replacement price in Kenya?
The Samsung Galaxy S21 FE 5G Battery Replacement is KSh 2,900 at Mascom International in Nairobi CBD, with fitting labour included. That price buys a brand new, original-grade 4500mAh battery installed in your own phone, plus a 6-month warranty covering manufacturing defects in the battery. You pay nothing extra for opening or closing the handset. The Samsung Galaxy S21 5G Battery Replacement is also KSh 2,900, but it uses a smaller cell that will not fit this phone.
Why does my Samsung Galaxy S21 FE 5G battery drain so quickly now?
A Samsung Galaxy S21 FE 5G drains quickly once its lithium-ion cell has aged through years of daily charging, which lowers how much energy it can hold. Heat speeds that decline, so phones left on car dashboards or charged under pillows wear out sooner. Background apps and weak 5G signal add to the drain, but a worn cell is the usual cause when the change is sudden. A fresh battery from Mascom International brings the capacity back to the rated 4500mAh, and our technicians check the charging behaviour before you leave.
Is the Samsung Galaxy S21 FE 5G battery the same as the Samsung Galaxy S21 5G battery?
No, the Samsung Galaxy S21 FE 5G uses a 4500mAh battery, while the Samsung Galaxy S21 5G takes a smaller 4000mAh cell shaped for its slimmer frame. The two phones look similar but differ in body size, screen size and internal layout, so the batteries are not interchangeable. Both replacements cost KSh 2,900 at Mascom International with labour included. Check Settings, then About phone: an FE reads SM-G990, while the standard model reads SM-G991.
Will my Samsung Galaxy S21 FE 5G last a full day on Safaricom 5G after a new battery?
A fresh 4500mAh cell gives your Samsung Galaxy S21 FE 5G its original endurance back, which handles a typical day on Safaricom 5G in Nairobi, Mombasa or Kisumu for most users. Heavy hotspot sharing, navigation on boda boda rides and video calls will still drain it faster. Where 5G coverage is patchy, as it can be outside the main towns, switching to 4G saves power. Airtel Kenya and Telkom users see the same benefit on their networks. During KPLC outages, a USB-C power bank with Power Delivery output keeps the phone topped up.
Can a swollen battery damage my Samsung Galaxy S21 FE 5G?
Yes, a swollen battery can push the back panel off and press against the display of your Samsung Galaxy S21 FE 5G, risking cracks or damaged internal connectors. Swelling happens when an aged lithium-ion cell builds up gas, often after heat exposure or years of overnight charging. Stop charging the phone once you notice a gap along the edges. Bring it to Mascom International on Kimathi Street, where our technicians remove the swollen cell with care.
How fast does the Samsung Galaxy S21 FE 5G charge with the new battery?
The Samsung Galaxy S21 FE 5G is rated for 25W wired charging, reaching about 50 percent in 30 minutes with a compatible USB Power Delivery adapter. That rating belongs to the phone, and a correctly fitted original-grade battery charges within it. The phone also supports 15W wireless charging and reverse wireless sharing for earbuds. Older 5V adapters still work but charge more slowly, which matters when you only have a short window of mains power. Mascom International sells compatible 25W adapters separately if you need one.
Can I still take my Samsung Galaxy S21 FE 5G near water after the repair?
Keep your Samsung Galaxy S21 FE 5G away from water after the repair, because opening it disturbs the factory IP68 seal. From the factory, the phone was rated for 1.5 metres of fresh water for 30 minutes, but that rating no longer applies once the back has been removed. Light splashes are less risky than full immersion, yet no repair counter anywhere can restore true factory sealing. Use a zip pouch on rainy days and keep the phone clear of the pool.
Who should buy the Samsung Galaxy S21 FE 5G Battery Replacement and who should skip it?
Buy the Samsung Galaxy S21 FE 5G Battery Replacement if your phone is otherwise healthy but cannot get through a workday, or if the back has begun to lift. It suits owners who value this triple camera setup, know their way around the phone and want to keep it a while longer instead of starting over. Skip it if the display is cracked or flickering as well, and ask Mascom International about screen replacement instead. Owners of the Samsung Galaxy S21 5G should book the smaller battery listed for that model.
Technical Specifications
Cell Rating and Chemistry
- Rated 4500mAh, matching the capacity Samsung lists for this phone, so no endurance is lost to a smaller cell.
- Lithium-ion construction, the same chemistry Samsung chose originally, keeping charging behaviour familiar to the phone.
- Brand new, original-grade cell, unused before installation, rather than a part pulled from a donor handset.
- Shaped to match the factory battery bay, so it sits flat and keeps the back panel flush.
- Brings back the stamina an aged cell has lost, so the phone stops needing a midday charge.
Which Phones It Fits
- Designed for the Samsung Galaxy S21 FE 5G, the 6.4-inch model released in January 2022.
- Fits model numbers beginning SM-G990, covering both the Snapdragon 888 and Exynos 2100 versions of the phone.
- Dual-SIM units such as SM-G990B/DS share the same battery, so SIM layout makes no difference.
- Not suitable for the Samsung Galaxy S21 5G, which uses a 4000mAh cell shaped for its smaller frame.
- Unsure of your version? Send the model number from Settings on WhatsApp and we confirm the match first.
Power Intake and Wireless Top-Ups
- 25W wired charging through USB Power Delivery, with Samsung rating about 50 percent in 30 minutes.
- 15W wireless charging on compatible Qi pads, handy on an office desk or bedside table.
- Reverse wireless charging lets the phone share power with earbuds or a watch placed on its back.
- USB-C power banks with Power Delivery output charge it properly, useful on long journeys between towns.
- One UI battery protection options remain available, so you can limit top charge levels and slow wear.
Handset Components the Cell Feeds
- 6.4-inch Dynamic AMOLED 2X screen at 120Hz, which looks smooth but draws more power at high refresh.
- Snapdragon 888 or Exynos 2100 chip on a 5 nm process, efficient enough for gaming and editing.
- 5G radio for international bands, including band 78, which works harder on weak signal and drains faster.
- Gorilla Glass Victus front protects the screen, but the back must be opened for any battery work.
- 177 g weight and 7.9 mm thickness stay unchanged after the replacement, so cases still fit.
In-Store Installation on Kimathi Street
- KSh 2,900 covers both the battery and the labour, with no hidden opening or closing fee.
- Mascom International technicians do the work on site at Old Mutual Building, not through a third party.
- The swap leaves internal storage untouched, so photos, chats and apps remain where you left them.
- You see the phone switch on and begin charging before it leaves the counter.
- Opening hours run Monday through Saturday, so weekday workers can come on a Saturday instead.
Handling and Post-Fit Testing
- The old cell is lifted out carefully, since a punctured lithium-ion battery can overheat or smoke.
- Charging is confirmed on the new battery before the phone is returned to you.
- Screen, cameras, speakers and buttons are checked after reassembly, so any issue is caught on the spot.
- Factory IP68 sealing is disturbed by opening, so treat the phone as no longer water-resistant to that rating.
- Covered by a 6-month warranty on manufacturing defects in the replacement battery under normal use.
Package Contents
The Samsung Galaxy S21 FE 5G Battery Replacement includes one brand new, original-grade 4500mAh replacement battery, fitted into your own phone by Mascom International technicians with labour included in the KSh 2,900 price. The service comes without a charger, cable or box, because the battery is installed directly rather than handed over loose. Compatible chargers are sold separately at Mascom International, including 25W USB-C adapters suited to this phone, if your current one charges slowly or has failed.
Warranty
Mascom International backs the Samsung Galaxy S21 FE 5G Battery Replacement with a 6-month warranty covering manufacturing defects in the replacement battery under normal use. If the battery develops a fault within that period, bring the phone and your receipt to our Nairobi CBD service desk for assessment.
Buying the Samsung Galaxy S21 FE 5G Battery Replacement from Mascom International
Book the Samsung Galaxy S21 FE 5G Battery Replacement at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Our doors open Monday through Saturday, 9:00 AM to 7:00 PM, and we encourage you to check the phone yourself once the new cell is in. The service suits every colour of the phone, including White, Graphite, Lavender and Olive.
Questions before you come in? Contact us here:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Chargers and accessories bought alongside the service travel pay-on-arrival to all 47 counties. Orders within Nairobi and its environs arrive the same day, while Eldoret, Nakuru, Kisumu, Mombasa and other major towns receive them the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
The fitted battery carries the 6-month warranty described above. Expect plain specifications, a single upfront price and a team that answers after-sales questions long after the repair is done.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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