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HP OA04 Laptop Battery | Four-Cell Lithium-Ion | Fits HP 15-r000 15-g000 240 G2 250 G2 255 G2 | Replacement Battery
A spare pack for 2013 to 2015 notebooks that clips into the rear bay and restores unplugged working time.
Condition: New
Note: price and availability are subject to change without prior notice
The HP OA04 Laptop Battery is in stock at Mascom International, priced at KSh 2,450, as a brand new replacement battery for HP notebooks that use the OA04 or OA03 code. It suits the HP 15-r000 series, including the 15-r000nia, along with the 15-g, 14-r, 240 G2, 250 G2 and 255 G2 families. The HP OA04 Laptop Battery is a four-cell lithium-ion pack that clips into the bay at the back of the laptop, with no screws or tools needed. You can collect it from our store on the first floor of Old Mutual Building, Kimathi Street, Nairobi CBD.
Built for university students, sales teams, cyber café owners and small office staff across Kenya, the HP OA04 Laptop Battery brings an older HP back to life away from the socket. Many of these laptops are now more than ten years old, and the first sign of age is a battery that dies minutes after unplugging. That hurts during a KPLC power cut, or on a long day of lectures at Kenyatta University where free sockets are scarce. A fresh pack turns a desk-bound machine into a portable one again, for a small part of the cost of buying another laptop.
Where most Nairobi electronics shops sell unlabelled batteries off a pile, Mascom International matches the code on your old pack before you pay. Customers across Nairobi tell us the biggest frustration with laptop batteries is buying the wrong shape, so we check first. Bring your laptop to the counter and the team will confirm the HP OA04 Laptop Battery fits, or send the code printed on your old battery on WhatsApp. Buyers outside Nairobi can order with pay-on-arrival delivery to all 47 counties, so a student in Eldoret or a shop owner in Kisumu pays only once the HP OA04 Laptop Battery arrives.
Common Questions About the HP OA04 Laptop Battery
How much is the HP OA04 Laptop Battery in Kenya?
The HP OA04 Laptop Battery costs KSh 2,450 at Mascom International in Nairobi CBD, sold as a fresh replacement part. That price covers one four-cell battery and a 6-month warranty against manufacturing defects. It does not include a charger, because the pack charges through the adapter your laptop already uses. The battery clips in by hand, so most owners fit it themselves in under a minute. Delivery is pay-on-arrival across all 47 counties, and you pay nothing until the parcel is in your hands.
Which laptops does the HP OA04 Laptop Battery fit?
The HP OA04 Laptop Battery fits HP laptops that shipped with an OA04 or OA03 battery, mostly sold between 2013 and 2015. That covers the HP 14-r, 14-d, 15-r, 15-g and 15-d series, plus the HP 240 G2, 245 G2, 250 G2 and 255 G2. Many 240 G3, 250 G3 and 255 G3 units take it too, and so do Pavilion 14-r and 15-r TouchSmart models. Because HP reused model names, check the code on your old pack or the model sticker under the laptop first.
Will the HP OA04 Laptop Battery fit a laptop that came with an OA03 battery?
Yes, the OA04 and OA03 share the same shape, latch and connector, so the HP OA04 Laptop Battery drops into laptops sold with either code. The difference is the cell count. In HP's naming, the last two digits give the number of cells, so the OA03 holds three and the OA04 holds four. That extra cell stores more energy. A laptop that shipped with the three-cell OA03 usually runs longer unplugged after the swap, with no settings to change in Windows.
Is the HP OA04 Laptop Battery useful during KPLC power cuts?
Yes, a healthy HP OA04 Laptop Battery keeps your laptop running through a typical KPLC outage, so you can save work and finish an email. How long it lasts depends on screen brightness, the processor in your model and what you run. Office work, M-Pesa statements and browsing on Safaricom home fibre or a phone hotspot draw far less than video. Turning the screen down and closing unused browser tabs stretches each charge noticeably during a long evening blackout in Nairobi or Nakuru.
Should I buy the HP OA04 Laptop Battery or the HP HS04 Laptop Battery?
Pick the HP OA04 Laptop Battery at KSh 2,450 for HP laptops from the 15-r, 15-g and 250 G2 era. Pick the HP HS04 Laptop Battery at KSh 2,800 for the later 15-ac, 15-ay, 250 G4 and 250 G5 generation. Both are four-cell packs and both are in stock at Mascom International, but their shapes and connectors differ, so neither fits the other's laptop. If your model sticker is unclear, the code printed on the old battery settles it in seconds.
Who should buy the HP OA04 Laptop Battery, and who should skip it?
Buy the HP OA04 Laptop Battery if your HP still runs well but shuts down soon after you pull the plug. Skip it if the laptop will not charge even when plugged in, since a faulty adapter or charging port is often the real cause, and a new battery will not fix that. Owners of a newer HP 250 G7 or 15-da should also skip it, because those models take the HP HT03XL battery, which Mascom International stocks at KSh 3,250.
How do I fit the HP OA04 Laptop Battery myself?
Fitting the HP OA04 Laptop Battery takes under a minute and needs no tools. Shut the laptop down fully, unplug the adapter and turn the laptop over on a flat table. Slide the battery release latch, lift the old pack out of the rear bay, then slide the new one in until the latch clicks shut. Plug in the adapter and charge to full before your first long session. If you would rather not do it alone, bring the laptop to our counter.
Does the HP OA04 Laptop Battery need a special first charge or care in Kenyan heat?
No special routine is needed, because lithium-ion cells have no memory effect and you can top up whenever a socket is free. One full charge and full run-down early on helps the Windows battery meter read percentages accurately. Heat is the bigger risk. Keep the laptop off beds and sofas that block its vents, and never leave it in a parked car in the Mombasa or Garissa sun, since high temperatures age every lithium battery faster.
Technical Specifications
Cell and Capacity
- Four-cell lithium-ion pack — one more cell than the OA03 code, so it stores more energy for longer unplugged work sessions.
- OA04 code on the label — the same battery code HP printed on the pack your laptop shipped with from the factory.
- Rated capacity printed on the label — mAh, or milliamp-hours, measures stored charge; replacement OA04 packs are commonly rated around 2200mAh.
- Lithium-ion chemistry — no memory effect, so topping up from half charge does not shrink the capacity you get later.
- Fresh cells with no charge cycles used — full capacity from day one, unlike a pack pulled from a scrapped laptop that has aged.
- Charge level shown in Windows — the battery icon reads percentage and estimated time left as soon as the pack is fitted.
Compatibility and Model Matching
- Fits laptops built for OA04 and OA03 — both codes share one shape, one latch position and one connector, so either slot accepts it.
- HP 15-r000 series — including the 15-r000nia sold widely in Kenya, plus the 15-r100 and 15-r200 sub-series of the same design.
- HP 14-r, 14-d, 15-d and 15-g series — the mainstream HP home notebooks sold in Kenyan shops between 2013 and 2015.
- HP 240 G2, 245 G2, 250 G2 and 255 G2 — HP's office notebooks of that period, common in schools, SACCOs and small businesses.
- Many HP 240 G3, 250 G3 and 255 G3 units — HP changed parts within some generations, so confirm the old battery's code first.
- Matching part numbers — 740715-001, 746641-001 and HSTNN-LB5S often appear beside the OA04 code on the original pack's label.
Build and Safety
- Removable rear-mounted design — slides into the bay at the back of the laptop and locks with the laptop's own latch.
- No screwdriver or opening needed — the bottom cover stays closed, so there is no risk of damaging clips or ribbon cables.
- Keyed connector — the contacts line up only one way, so the pack cannot be fitted backwards by mistake.
- Protection circuit built into the pack — standard on lithium-ion laptop batteries, it cuts power if the cells overcharge or short.
- Matte black plastic housing — matches the base finish of the HP laptops it fits, with the code and ratings printed underneath.
- Fit checked at the counter on request — bring your laptop to Mascom International and the team confirms the match before you pay.
Charging and Everyday Use
- Charges through your existing HP adapter — no extra charger is needed when the laptop's power supply is working properly.
- Charges while you work — plug in and keep typing, browsing or presenting as the battery fills in the background.
- First full charge recommended — lets the Windows battery meter learn the new pack and show accurate percentages from then on.
- Partial top-ups are fine — plug in whenever a socket is free at the office, the library or a café without any harm.
- Avoid long storage at zero — a pack left flat for weeks can drop into deep discharge and then refuse to take a charge.
- Keep it cool — heat ages lithium cells faster, so avoid car dashboards, direct sun and blocked laptop vents during use.
Inclusions
- One OA04 replacement battery — the only item in the package, ready to clip into a matching HP laptop.
- No charger supplied — the battery charges through your laptop's adapter, and HP adapters are sold separately at Mascom International.
- No tools supplied — none are needed, because the pack locks in by hand through the laptop's rear latch.
- 6-month warranty cover — protects against manufacturing defects, with claims handled at the Nairobi CBD service desk.
- Free code check before purchase — send the code from your old pack on WhatsApp and the team confirms the match.
Package Contents
The HP OA04 Laptop Battery comes on its own: one replacement battery, ready to fit. There is no charger in the package, because the pack charges through the adapter your laptop already uses. If your adapter is lost, damaged or slow to charge, compatible HP laptop adapters are sold separately at Mascom International. No tools or screws come with it, since none are needed for a rear-latch battery. Keep the receipt with the pack, as it supports any warranty claim later.
Warranty
Mascom International backs the HP OA04 Laptop Battery with a 6-month warranty covering manufacturing defects, such as a pack that will not charge or will not hold charge under normal use. Warranty claims are handled at our Nairobi CBD service desk on the first floor of Old Mutual Building, Kimathi Street.
Where to Buy the HP OA04 Laptop Battery in Kenya
The HP OA04 Laptop Battery is available at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. We open Monday through Saturday, 9:00 AM to 7:00 PM. Bring your laptop along and we will check the fit at the counter before you pay. The pack comes in black to match the base of the laptop.
To order, confirm the code or ask about stock, reach us on any of these:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
We offer pay-on-arrival delivery to all 47 counties. Orders within Nairobi and its environs arrive the same day, and buyers in Nakuru, Kisumu, Eldoret, Thika and Nyeri receive theirs the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Every unit is backed by the 6-month warranty above. We stand behind honest specifications, accurate pricing and real after-sales support, so the battery you buy matches the laptop you own.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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