HP Laptop Battery Replacement Cost UK 2026 — Pavilion, ENVY & EliteBook Prices
Direct answer: HP laptop battery replacement in the UK costs from around £44.95 on an older Pavilion 15 up to £119.95 on a current Spectre x360, with most Pavilion and Envy packs at £69.95–£89.95 and EliteBook at £79.95–£99.95. Internal batteries in newer Spectre and ENVY models need more disassembly than the removable packs in older Pavilions, which is part of the spread. Every price below is from our live price list, and every battery carries a 27-month guarantee. If your pack is swollen or bulging, treat it as urgent — stop using the laptop and send it promptly.
A tired HP battery is one of the highest-value repairs on any laptop: a machine that dies after twenty minutes, shuts down without warning, or will not run off the charger at all is almost always a perfectly serviceable computer saddled with a worn-out cell. The job is quick, the part is cheap relative to the machine's value, and the 27-month guarantee means the new pack outlasts the rest of the laptop's useful life. The exact per-model price is below, along with the one detail that decides the labour — whether your HP uses a pack that slides out of the base or an internal cell secured behind the bottom cover. Start at our HP laptop repair cost hub for the full picture, and see our charging port guide if your HP won't charge at all (a different fault, with a different price).
HP laptop battery replacement prices
Prices below are fitted, by post, including the OEM-grade cell, labour and insured return. "Internal" means the pack is secured inside the chassis and the bottom cover must be removed; "removable" means the pack slides out of the base on older models. If your exact model is not listed, contact us for a quote.
| Model | Pack type | Price |
|---|---|---|
| Pavilion 15 (2023) | Internal | £69.95 |
| Pavilion 14 (2023) | Internal | £69.95 |
| Pavilion Plus 14 (2025) | Internal | £89.95 |
| Pavilion 15 (2021) | Internal | £69.95 |
| Pavilion 15 (2019) | Removable | £54.95 |
| Pavilion 15 (2017) | Removable | £44.95 |
| Envy 15 (2020) | Internal | £69.95 |
| Envy 17 (2020) | Internal | £69.95 |
| ENVY x360 16 (2025) | Internal (glued) | £99.95 |
| Spectre x360 14 (2025) | Internal (glued) | £119.95 |
| Spectre x360 16 (2025) | Internal (glued) | £119.95 |
| Spectre x360 14 (2024) | Internal (glued) | £109.95 |
| Spectre x360 14 (2023) | Internal (glued) | £99.95 |
| EliteBook 840 G12 (2025) | Internal | £99.95 |
| EliteBook 1040 G12 (2025) | Internal | £99.95 |
| EliteBook 840 G11 (2024) | Internal | £89.95 |
| EliteBook 840 G9 (2022) | Internal | £79.95 |
| ProBook 450 G11 (2024) | Internal | £79.95 |
Swollen HP battery: what to do
A swollen or bulging battery is a genuine safety issue, not a wear-and-tear inconvenience. If your HP's trackpad is lifting, the chassis is bowing, or the laptop rocks on a flat desk, the lithium cell inside is expanding as it degrades — and a punctured or overheated swollen cell can vent or catch fire. The correct response is to stop using the laptop immediately, do not attempt to charge it, and do not try to lever the pack out yourself. Switch it off, leave it on a non-flammable surface away from soft furnishings, and send it for a prompt replacement. We remove and replace swollen packs safely, every day.
When you post a swollen-battery HP, pack it so the chassis cannot be squeezed in transit — a rigid box with the laptop held centrally by corner padding, not bubble-wrap packed tight around it. Our HP repair by post guide covers safe packing in detail.
Signs your HP battery needs replacing
- Won't hold charge — runtime has collapsed to well under an hour, or the percentage drops in sudden jumps.
- Unexpected shutdowns — the laptop powers off without the low-battery warning, then sometimes restarts when plugged in.
- Won't run off the charger — works on mains, dies the moment you unplug.
- HP Support Assistant warning — the built-in battery health check flags a weak or faulty cell (a reliable consumer signal).
- Visible swelling — a lifting trackpad, a bowing base, or the laptop no longer sitting flat.
Internal vs removable HP batteries
HP's range splits into two designs. Older Pavilion and some business models use a removable pack that slides out of the base — a faster, cheaper swap because no chassis disassembly is needed. Newer Pavilion, ENVY, EliteBook and all Spectre x360 models use internal packs, secured inside with adhesive and screws; on the slimmest Spectres the pack is glued into the lid or base, which is the labour that pushes those repairs higher. The cell itself is similar across the range; the difference is the time and care needed to reach it.
On a glued-shut Spectre, getting the pack out cleanly is the job — soft heat, a plastic spudger, and patience, because a torn cell or a cracked chassis is the cost of rushing it. We fit the new OEM-grade cell, re-secure it, reset the battery controller so the machine reports accurate capacity, and load-test before reassembly. The 27-month guarantee covers the cell and the labour.
How we test before we swap
Not every "bad battery" symptom is the battery. Before we condemn a pack we bench-check the machine: a multimeter test on the old cell confirms whether it is genuinely depleted or whether a charging-port or board-level fault is starving it of power. A laptop that "won't charge" is sometimes a worn USB-C port, not the battery — and replacing a perfectly good cell would waste your money. That is why diagnosis comes first and the figure we confirm is the figure you pay. Diagnostics are free on standard battery work.
What a battery replacement involves
On a removable-pack Pavilion the swap is a two-minute job — slide the latches, the pack drops out of the base, the new cell slides home, the latches relock, and the laptop reports the fresh capacity on the next boot. On an internal EliteBook or Pavilion the process is more involved: the bottom cover comes off, the internal connector is unclipped, the worn cell is unfastened from its recess, the new OEM-grade cell is seated and screwed down, and the controller is reset so the machine relearns accurate capacity rather than reading the old cell's degraded profile. The machine is then load-tested — a discharge cycle under real demand — to confirm the new pack delivers its rated runtime before reassembly.
A Spectre x360 adds the glued-pack complication. On the slimmest convertibles the cell is adhered into the lid or base, so removal is soft heat, a thin plastic spudger, and steady, even pressure to release the adhesive without flexing the cell — because flexing a degraded lithium pack is exactly how you trigger the venting a swollen cell is already threatening. Once the old pack is out intact, the chassis is cleaned of adhesive residue, the new cell is seated and re-secured, and the full function test runs. The 27-month guarantee covers the cell and the labour.
Making the new battery last
A replacement cell is only as good as how it is treated afterwards. A few habits add years to an HP battery: avoid leaving the laptop pinned at 100 percent on the charger for weeks on end (HP's own battery-care limit, where fitted, helps here); let it cycle down to roughly a quarter rather than trickle-charging forever; and keep the machine away from sustained heat — a clogged heatsink cooking the cell from above ages a battery faster than any charge pattern. If your HP runs hot, a heatsink clean and repaste is the single best thing you can pair with a battery swap. See our common HP faults guide for the overheating detail.
OEM-grade vs aftermarket HP batteries
We fit OEM-grade cells that match the original capacity and voltage, and we tell you what is going in before work starts. Aftermarket cells routinely understate capacity, age faster, and swell sooner — the last thing you want in a glued-shut Spectre, where a swollen pack later means another full disassembly. A honest cell is cheap insurance against that. See our parts-grade guide.
HP battery replacement by post
Book at /repair/laptop/hp, pack your HP in a rigid box with corner padding, and send it tracked and insured via Royal Mail Special Delivery. We diagnose free, confirm the exact price, fit the OEM-grade cell, load-test, and return it tracked and insured with the 27-month guarantee logged. See our HP repair by post guide.
Other HP laptop repairs
For the full per-model price list across screens, batteries, keyboards and charging ports, see our HP laptop repair cost hub.
Frequently asked questions
How much does HP Pavilion laptop battery replacement cost?
A Pavilion 15 battery is around £69.95 for current internal models, with older removable packs from £44.95–£54.95; the Pavilion Plus 14 sits at £89.95. Each price is published above and carries a 27-month guarantee.
Is a swollen HP laptop battery dangerous?
Yes. A swollen lithium cell can vent or catch fire if punctured or overheated. Stop using the laptop, do not charge it, and send it for a prompt replacement. We remove and replace swollen packs safely every day.
My HP battery won't charge — is it the battery or the port?
Not always the battery. A worn USB-C charging port or a board-level charging fault can starve a healthy cell of power. We bench-check with a multimeter before condemning the pack, so you only pay for the repair you actually need.
How long does an HP laptop battery last before it needs replacing?
Most lithium packs show meaningful wear after roughly 500–1000 full charge cycles — typically three to five years of daily use. The built-in HP Support Assistant battery health check will flag a weak cell before it fails outright.
Will a replacement HP battery last as long as the original?
An OEM-grade cell matched to the original capacity will deliver comparable runtime and service life. Cheap aftermarket cells understate capacity and age faster, which is why we fit the honest part and back it with the 27-month guarantee.
Can I replace my HP laptop battery myself?
On an older removable-pack Pavilion, yes — it slides out. On internal and glued Spectre/ENVY models it is a full disassembly with puncture risk on a swollen cell, so a bench repair is the safer, faster route.