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HP Compaq 6520s Laptop Battery | 11.1V 4400mAh | Fits 6520s 6720s 6730s 6820s HP 550 | Replacement Battery
Gives decade-old office notebooks real unplugged runtime once more.
Condition: New
Note: price and availability are subject to change without prior notice
The HP Compaq 6520s Laptop Battery is available at Mascom International for KSh 2,500, a brand new replacement battery rated at 11.1V and 4400mAh, which works out to about 48.8Wh of stored energy. It fits the HP Compaq 6520s along with the 6720s, 6730s, 6735s, 6820s and 6830s, plus the HP 550 and the Compaq 510, 511, 610 and 615. The HP Compaq 6520s Laptop Battery is a compatible pack that clips into the bay on the underside and locks with the laptop's release latch. Our shop is at Old Mutual Building, Kimathi Street, Nairobi CBD.
Built for small businesses, accounts clerks, church offices and workshop managers who still rely on these older laptops, the HP Compaq 6520s Laptop Battery solves a familiar problem. Many 6520s machines in Kenya run one trusted job, such as legacy accounting software, a stock register or a printer queue, yet their old batteries hold no charge at all. Every KPLC flicker then shuts the laptop down and risks losing unsaved work. A fresh HP Compaq 6520s Laptop Battery acts as a buffer, keeping the machine running through outages in Industrial Area offices and beyond.
Unlike other electronics retailers in Kenya that have long stopped stocking parts for older laptops, Mascom International still carries batteries for the 6520s generation. Bring your laptop to our counter and the team can check the fit on the spot, or WhatsApp the code on your old battery, such as HSTNN-IB51 or GJ655AA. At Mascom International, we're seeing steady demand from offices that would rather keep a reliable older machine than move their records to a new one. The HP Compaq 6520s Laptop Battery ships pay-on-arrival to every county, so you check it before paying.
Common Questions About the HP Compaq 6520s Laptop Battery
How much is the HP Compaq 6520s Laptop Battery in Kenya?
The HP Compaq 6520s Laptop Battery costs KSh 2,500 at Mascom International in Nairobi CBD, brand new as a compatible replacement. That covers the 11.1V, 4400mAh battery and a 6-month warranty against manufacturing defects, with pay-on-arrival delivery across Kenya. No charger comes in the pack, because your laptop's existing HP adapter charges it. The HP ProBook 4520s Laptop Battery, made for HP's later business line, costs KSh 3,000, which is KSh 500 more.
Which laptops does the HP Compaq 6520s Laptop Battery fit?
The HP Compaq 6520s Laptop Battery fits the HP Compaq 6520s, 6720s, 6730s, 6735s, 6820s and 6830s, plus the HP 550 and the Compaq 510, 511, 610 and 615. These business laptops share one battery shape and connector. Matching codes on the old pack include HSTNN-IB51, HSTNN-OB51, HSTNN-FB51, GJ655AA and 451085-141. If your label shows a different code, send a photo to Mascom International on WhatsApp and we will check it before you order.
How long will the HP Compaq 6520s Laptop Battery last on one charge?
Unplugged time from the HP Compaq 6520s Laptop Battery depends mostly on the laptop, because these older machines use power-hungry processors and screens by today's standards. Expect useful runtime for typing, spreadsheets and light browsing, and noticeably less with the screen at full brightness or a DVD playing. Its 4400mAh rating, about 48.8Wh, is the usual size for this class of pack. Lowering brightness, turning off Wi-Fi when working offline and using Windows power saver all stretch each charge.
Will the HP Compaq 6520s Laptop Battery protect my work during KPLC power cuts?
Yes, a working HP Compaq 6520s Laptop Battery stops the laptop from shutting off the moment KPLC power drops. Without a healthy battery, a 6520s running on mains alone loses any unsaved document or half-posted entry in its accounting software. With the new pack fitted, the laptop switches to battery automatically and keeps running, giving you time to save and shut down safely or carry on working. In hot, dusty workshops, blow out the vents now and then, since heat shortens battery life.
How does the HP Compaq 6520s Laptop Battery compare with the HP ProBook 4520s Laptop Battery?
The HP Compaq 6520s Laptop Battery serves HP's Compaq-era business laptops, while the HP ProBook 4520s Laptop Battery serves the later ProBook line that replaced them. The 6520s pack costs KSh 2,500, and the 4520s pack costs KSh 3,000. They differ in shape and connector, so neither fits the other laptop. If you own a 6520s, 6720s or 6730s, this is your battery. If the label under your screen says ProBook 4520s, choose the other one.
Who should buy the HP Compaq 6520s Laptop Battery, and who should skip it?
Buy the HP Compaq 6520s Laptop Battery if your 6520s or sister model still boots and does its job, but dies the moment the charger comes out. It suits offices running older software, students on a tight budget and anyone keeping a reliable backup machine. Skip it if you need Windows 11, quick eCitizen and KRA iTax sessions or daily video calls, because these laptops are well over a decade old. For that, a used business laptop such as an HP EliteBook is the better spend.
How do I fit the HP Compaq 6520s Laptop Battery?
The HP Compaq 6520s Laptop Battery is an external pack, so fitting it takes no screwdriver. Shut the laptop down and unplug the charger, then turn it over and slide the battery release latch to free the old pack. Lift it out, line the new battery up with the bay and press it in until it clicks into place. Plug in the charger and let it reach a full charge before relying on it. Mascom International can also check the fit at the counter.
Is the HP Compaq 6520s Laptop Battery worth buying for such an old laptop?
For KSh 2,500, the HP Compaq 6520s Laptop Battery is worth it when the laptop does a fixed job well and replacing it would mean moving software, records or licences to a new machine. That move often costs more time and money than the battery, especially for M-Pesa reconciliation sheets and older payroll files. It is less worth it if the laptop also has a weak hinge, failing hard drive or dead screen, since repairs add up. Our team at Mascom International will give you a straight view.
Technical Specifications
Cell and Capacity
- 11.1V rating — the voltage the 6520s family was designed around, so the laptop charges and reads the pack normally.
- 4400mAh capacity, about 48.8Wh — watt-hours measure stored energy, worked out here as voltage multiplied by amp-hours.
- Lithium-ion cells — the chemistry used in laptop batteries, with no memory effect, so partial top-ups during the day do no harm.
- Brand new cells — full rated capacity from the first charge, unlike a pack worn down by many years of daily cycling.
- Runtime varies with use — typing and spreadsheets go further than DVD playback, full brightness or heavy multitasking on these older processors.
Compatibility and Model Matching
- Fits the HP Compaq 6520s — the business laptop this battery is named after, still common in offices and workshops.
- Fits the HP Compaq 6720s, 6730s, 6735s, 6820s and 6830s — sister models that share the same bay and connector.
- Fits the HP 550 and the Compaq 510, 511, 610 and 615 — mainstream siblings built around the same battery design.
- Cross-references HSTNN-IB51, HSTNN-OB51, HSTNN-FB51, HSTNN-LB51, GJ655AA and 451085-141 — any of these on your old pack means a match.
- Not for ProBook 4520s, EliteBook or 2530p laptops — those use different battery shapes, so check your code first.
Build and Safety
- External removable pack — clips into the bay under the laptop and locks with the factory release latch, with no screws involved.
- Contact block matches the 6520s battery socket — the pack seats directly, with no adapters or modified wiring.
- Built-in protection circuit — guards against overcharge, deep discharge and short circuits, the standard safety layer in laptop packs.
- Rigid plastic housing — shields the cells when the battery is out of the laptop or carried in a bag as a spare.
- Flush fit — once locked in, the pack sits level with the base so the laptop rests flat on a desk.
Charging and Care
- Charges from the laptop's existing HP adapter — no external charger or dock is needed for this pack.
- Swappable in seconds — a second charged battery can carry you through long days away from a socket.
- First full charge recommended — lets the laptop's gauge learn the pack and show accurate remaining time.
- Keep it cool — heat ages lithium cells faster than charging does, so avoid charging inside a hot car or on a soft surface.
- Store at about half charge — the healthiest level if the laptop or a spare pack will sit unused for a month or more.
Inclusions
- One brand new replacement battery for the 6520s family — supplied on its own, with no extras.
- No charger — compatible laptop adapters are sold separately at Mascom International.
- No tools required — the external latch design means the pack fits by hand in under a minute.
- 6-month warranty against manufacturing defects — keep the receipt for claims at the Nairobi CBD service desk.
- Code check before you buy — WhatsApp the label on your old battery or the laptop's model sticker.
Package Contents
Your order contains the HP Compaq 6520s Laptop Battery and nothing more. A charger is not included, since the HP adapter that already powers your laptop charges the new pack as soon as it clicks into place. If that adapter has gone missing or stopped working, compatible laptop adapters are sold separately at Mascom International. No tools are needed for this external battery. Send the code from your old pack or the laptop's model sticker on WhatsApp, and we will confirm the match before dispatch.
Warranty
Mascom International backs the HP Compaq 6520s Laptop Battery with a 6-month warranty against manufacturing defects. The cover applies under normal use, for faults such as a pack that will not charge or drains abnormally fast. Claims are handled at our Nairobi CBD service desk in Old Mutual Building.
Where to Buy the HP Compaq 6520s Laptop Battery in Kenya
The HP Compaq 6520s Laptop Battery is waiting at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD, open Monday through Saturday, 9:00 AM to 7:00 PM. Bring the laptop with you and the team will check that the pack clicks in and charges before you pay. The battery comes in black to match the laptop's base. Offices keeping several 6520s or 6730s machines running can send their battery codes in one message for a combined check.
Get in touch through any of these:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
We ship pay-on-arrival to all 47 counties. Nairobi and its environs receive orders the same day, and towns such as Thika, Meru, Kericho and Malindi within 1 business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days. The pack is backed by the 6-month warranty above. Our promise is simple: honest specifications, accurate prices, and real after-sales support from a shop you can walk into.
Disclaimer: We can not guarantee that the information on this product is 100% correct
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