Acer ANJ1 Laptop Battery is in stock at Mascom International, priced at KSh 5,500 for a brand new replacement pack rated 11.1V and 4800mAh. That rating works out to about 53Wh of stored energy, enough to return an older Acer notebook to proper unplugged use. The Acer ANJ1 Laptop Battery matches the code BTP-ANJ1, which Acer printed on batteries for older Aspire notebooks, with the Aspire 3620 family the most common match. It is a compatible replacement, not an Acer-branded part. Collect it from Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD.
Built for owners of older Acer notebooks across Kenya, the Acer ANJ1 Laptop Battery suits university students, shopkeepers, accountants and office staff who still depend on a machine from the late 2000s. A worn battery turns a laptop into a desktop that dies the instant the cable slips out or a KPLC power cut hits. A fresh pack restores the cushion you need to save work, finish an invoice or file a KRA return before the screen goes dark. For a student at Kenyatta University or a shop owner in Eldoret, that costs far less than a new laptop.
Where most Nairobi electronics shops sell unmarked batteries off a shelf and leave the fit to chance, Mascom International checks the code first. Send a photo of your old battery label or the laptop's model sticker on WhatsApp, or bring the laptop to our counter, and the team will confirm the Acer ANJ1 Laptop Battery fits before you pay. Customers across Nairobi tell us this saves them a wasted trip. With pay-on-arrival delivery to all 47 counties, a buyer in Kisumu or Nakuru can order the Acer ANJ1 Laptop Battery with confidence.
Common Questions About the Acer ANJ1 Laptop Battery
How much is the Acer ANJ1 Laptop Battery in Kenya?
The Acer ANJ1 Laptop Battery costs KSh 5,500 brand new at Mascom International in Nairobi CBD. That price covers one 11.1V 4800mAh replacement pack and a 6-month warranty against manufacturing defects. It does not include a charger or fitting labour, though our team will check the fit at the counter if you bring the laptop along. Delivery is pay-on-arrival, so you see the battery before paying. The Acer Aspire 4920 Laptop Battery in the same range costs KSh 3,500, which is KSh 2,000 less, but it carries a different code.
Which Acer laptops does the Acer ANJ1 Laptop Battery fit?
The Acer ANJ1 Laptop Battery fits older Acer notebooks whose original battery carries the code BTP-ANJ1. The Aspire 3620 family is the most common match. Acer used several battery codes across similar-looking Aspire and TravelMate models, so the safest check is the label, not the laptop's looks. Turn the laptop over, slide out the old battery and read the printed part code. If it says BTP-ANJ1 or ANJ1, this pack fits. If the label is worn away, send the laptop's model sticker to Mascom International on WhatsApp and we will confirm.
Is the Acer ANJ1 Laptop Battery an original Acer part?
No, the Acer ANJ1 Laptop Battery is a brand new compatible replacement, not an Acer-branded original. It is built to the same 11.1V voltage and outline as the BTP-ANJ1 pack, so it locks into the bay and works with the laptop's existing charger. Original packs for notebooks of this age are hard to find new in Kenya, which is why compatible batteries are now the practical choice for most owners. Mascom International sells it as a replacement part and backs it with a 6-month warranty against manufacturing defects.
How long will the Acer ANJ1 Laptop Battery last on one charge?
Runtime on the Acer ANJ1 Laptop Battery depends on the laptop's age, screen brightness and workload, so no single figure applies. What is fixed is the rating: 4800mAh at 11.1V, or about 53Wh. Older Acer notebooks draw more power than modern ones, so expect shorter sessions than a new laptop gives. Lowering brightness, closing heavy browser tabs and switching off Wi-Fi when you are offline all stretch each charge. Buyers throughout Kenya report that a fresh pack comfortably covers typing, spreadsheets and email between sockets.
Does the Acer ANJ1 Laptop Battery help during KPLC power cuts?
Yes, the Acer ANJ1 Laptop Battery keeps your older Acer running when KPLC power drops, so you can save files and shut down cleanly. A laptop with a dead battery switches off instantly in a blackout, which can corrupt open documents. With a fresh pack, an outage becomes a pause instead of lost work. Charge it through the laptop's own Acer adapter on a standard Kenyan three-pin socket, and plug that adapter into a surge protector, because voltage spikes often follow when power returns. That habit protects both battery and charger.
How does the Acer ANJ1 Laptop Battery compare with the Acer Aspire 5720 Laptop Battery?
Both cost KSh 5,500 at Mascom International, but they fit different laptops and cannot be swapped for each other. The Acer ANJ1 Laptop Battery suits older notebooks whose old pack reads BTP-ANJ1, while the Acer Aspire 5720 Laptop Battery fits the Aspire 5720 range, which uses a different battery code. Choosing between them has nothing to do with performance; it comes down to the label on your existing battery. Read that label first. If it says ANJ1, pick this one; if you own an Aspire 5720, pick the other.
Who should buy the Acer ANJ1 Laptop Battery, and who should skip it?
Buy the Acer ANJ1 Laptop Battery if your older Acer still runs well but dies the moment it is unplugged. It suits students, home users and small offices keeping a working machine in service for typing, checking M-Pesa statements, browsing and school work. Skip it if your laptop has a failing hard drive, broken hinges or a dead charging port, because a new battery will not fix those faults. Skip it too if your old battery carries a different code. In those cases, a used business laptop is often the better fit.
How do I care for the Acer ANJ1 Laptop Battery so it lasts longer?
Charge the Acer ANJ1 Laptop Battery fully before first use, then use it normally instead of keeping it plugged in at full charge all day. Lithium-ion cells age faster when kept hot and full, so avoid leaving the laptop on a bed or inside a parked car under the Mombasa sun. If you will not use the laptop for weeks, store the battery at about half charge in a cool, dry place. Wipe dust off the contacts now and then, especially during the dry season in Nairobi.
Technical Specifications
Cell and Capacity
- Rated 11.1V, the same voltage as the original BTP-ANJ1 pack, so the laptop treats it as a normal battery.
- 4800mAh capacity, about 53Wh of stored energy, enough for typing, spreadsheets and browsing between charging points.
- Lithium-ion chemistry with no memory effect, so you can top up anytime without waiting for a full drain first.
- Brand new cells never fitted to another machine, so you start with the full rated capacity instead of a worn pack.
- mAh measures how much charge a battery holds; a higher figure at the same voltage means longer sessions unplugged.
Compatibility and Model Matching
- Matches batteries labelled BTP-ANJ1 or ANJ1; check the printed code on your old pack before you order.
- Most commonly listed for the Acer Aspire 3620 family, while other older Aspire models may carry the same code.
- Same outline and connector as the BTP-ANJ1 original, so it slides into the bay without any modification.
- Works with the laptop's existing Acer charger, so no new adapter is needed if your current one still works.
- Unsure of the fit? Send the battery label or model sticker on WhatsApp and our team confirms before you pay.
Build and Safety
- Built-in protection circuit guards the cells against overcharging, deep discharge and short circuits during daily use.
- Hard plastic casing shaped like the original sits flush with the laptop base and resists everyday knocks in a bag.
- Metal contacts line up with the laptop's battery connector, giving a firm link that keeps charging steady and reliable.
- Locks in with the laptop's own release latches, the same way the original pack clicked into place.
- We can test it on your laptop at the counter, so you leave knowing it charges and powers the machine.
Charging and Care
- Charges through the laptop's own adapter, and the Windows battery icon shows charge level and estimated time remaining.
- Run two or three full charge cycles at the start so the laptop's battery meter learns the new pack correctly.
- Store at about half charge if the laptop sits unused for weeks, since lithium cells age slowest at mid-charge.
- Keep it away from strong heat such as sunny windowsills, because heat is the main cause of lost capacity.
- Use a surge protector on the charger to shield the adapter and battery when power returns after an outage.
Inclusions
- One Acer ANJ1 Laptop Battery, brand new and ready to slide into the battery bay of a matching notebook.
- No charger in the box; compatible Acer laptop adapters are sold separately at Mascom International if yours has failed.
- Fitting labour is not part of the price, though you can bring the laptop so we check the fit.
- Covered by a 6-month warranty against manufacturing defects, with claims handled at our service desk in person.
- Pay-on-arrival delivery is available nationwide, so you inspect the pack before handing over any money.
Package Contents
The box holds one Acer ANJ1 Laptop Battery, brand new and rated 11.1V 4800mAh. There is no charger, cable or tool inside, because the battery uses the power adapter your Acer laptop already has. If your adapter has failed, compatible Acer laptop adapters are sold separately at Mascom International. Fitting is not included in the price, but you are welcome to bring the laptop to our counter so the team can check the fit before you leave.
Warranty
Mascom International backs the Acer ANJ1 Laptop Battery with a 6-month warranty covering manufacturing defects, such as a pack that will not charge or hold power under normal use. Claims are handled at our Nairobi CBD service desk. Keep your receipt and bring the battery, plus the laptop where possible, so the team can test it.
Where to Buy the Acer ANJ1 Laptop Battery in Kenya
The Acer ANJ1 Laptop Battery is on the shelf at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, open Monday through Saturday, 9:00 AM to 7:00 PM. Bring your Acer along and we will slot the pack in at the counter to confirm it fits and charges. Ask on WhatsApp for a photo of the unit in stock before you travel.
To check your battery code or place an order, reach us directly:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
We deliver pay-on-arrival to all 47 counties. Orders within Nairobi and its environs arrive the same day, and buyers in Mombasa, Kisumu, Nakuru, Eldoret and other major towns receive theirs the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days. Your purchase is backed by the 6-month warranty above. We describe every replacement battery honestly, quote the exact price you pay, and stay reachable after the sale if anything goes wrong.
