Replacing the Dell XPS 15 9570 battery needs a small Phillips screwdriver, about 30 minutes, and a pack matching your installed 56 Wh or 97 Wh cell.
Dell’s service manual walks the screw order and the cable step in sequence. Budget a small Phillips screwdriver, a plastic pry tool, and the correct replacement.
XPS 15 9570 Battery Replacement: Cable Before Screws
The battery lifts out only after the base cover is off and the battery cable is unplugged from the system board — the cable step comes before any battery screw.
- Shut down Windows, unplug the AC adapter and every peripheral, and work on a clean, nonconductive surface.
- Remove the base cover. Dell’s manual shows the screw locations that have to come out first.
- Disconnect the battery cable from the system board by pulling the connector, never the wires.
- Remove the screws holding the installed battery. The count and positions differ between the half-length 56 Wh and full-length 97 Wh versions.
- Lift the battery straight out without bending, puncturing, or prying against the cells.
- Seat the replacement in the same location and reinstall its screws, hand-tight.
- Reconnect the battery cable to the system board.
- Reinstall the base cover and all of its screws.
- Connect AC power, start the laptop, and confirm the battery is detected and charging.
Dell’s 3D guide reduces the job to three parts — base cover off, battery cable disconnected, option battery swapped — a fair check that no stage was skipped. Move slowly around the connector; it is the one piece that is easy to damage and costly to replace.
The swap worked when the laptop reports the new pack and the charge percentage climbs with the adapter connected.
Which Replacement Battery Fits The 9570?
Match the pack physically installed in the chassis: the 3-cell 56 Wh half-length battery or the 6-cell 97 Wh full-length battery, both rated at 11.40 VDC and charged in roughly 4 hours with the computer off.
| Spec | 56 Wh Half-Length | 97 Wh Full-Length |
|---|---|---|
| Cells | 3-cell lithium-ion | 6-cell lithium-ion |
| Capacity | 56 Wh | 97 Wh |
| Rated voltage | 11.40 VDC | 11.40 VDC |
| Length | 223.20 mm | 330.50 mm |
| Thickness | 7.20 mm | 7.20 mm |
| Maximum weight | 0.54 lb (0.24 kg) | 0.76 lb (0.34 kg) |
| Charge time, computer off | About 4 hours | About 4 hours |
| Service life | About 300 cycles | About 300 cycles |
Prices and availability shift, and the same page gives no current Dell price for the 56 Wh pack.
Before the new pack goes in, check the model and part number, cell count, watt-hours, voltage, connector shape, and dimensions against the old battery. A third-party capacity claim is not proof of fit. Moving up to 97 Wh just for extra runtime is not a supported swap either — confirm chassis clearance, connector type, screw layout, and the shipped configuration. Our tested XPS 15 9570 battery roundup compares what aftermarket sellers actually ship.
Battery Handling Rules And What Not To Force
Stop work if the old pack is swollen, leaking, punctured, hot, or hard to lift out — a deformed lithium-ion battery is a fire risk, not a stubborn part.
- Keep metal tools away from the battery terminals and never bridge the connector.
- Never open the laptop with the AC adapter still connected.
- Confirm 9570 compatibility, not just “XPS 15” branding. This procedure covers regulatory model P56F, type P56F002, and does not carry over to other generations.
- Don’t confuse the ML1220 coin-cell battery with the main pack.
- Dell states its warranty does not cover problems caused by parts it did not supply.
Close the lid last. Boot with the adapter attached, open the battery report, and check that reported design capacity matches the pack you ordered — that number is your proof the correct cell went in. If the laptop does not detect the battery at all, reseat the cable connector before touching anything else.
Common Questions
Is it safe to swap a swollen laptop battery yourself?
Not as a routine job. Dell’s guidance is to stop the moment a pack looks swollen, leaking, punctured, or unusually hot, or if it resists lifting out of the chassis. A deformed lithium-ion battery can vent or ignite when bent or punctured, so a swollen pack belongs with a repair shop or a battery recycler rather than a pry tool.
How long should the new battery last?
Dell rates both the 56 Wh and 97 Wh packs at roughly 300 discharge and charge cycles, and either takes about 4 hours to reach full charge with the computer switched off. Capacity fades gradually after that, so a two- to three-year working life is realistic for daily use. Heat speeds that decline more than anything else.
Can I put the 97 Wh battery in a laptop that came with the 56 Wh one?
Dell does not present that as a supported upgrade. The two packs measure 223.20 mm and 330.50 mm long, so the longer 97 Wh unit needs clearance the smaller chassis may not provide. Confirm the connector, screw layout, and original configuration before buying, and match whatever is physically installed.
Sources
- Dell. “Dell 6-Cell 97 Wh Lithium Ion Replacement Battery for Select Laptops” Confirms part W62W6, XPS 15 9570 compatibility, and the $169.99 listed price.
- Dell. “XPS 15 9570 Service Manual: Before Working Inside Your Computer” Covers the safety precautions and preparation steps used in the procedure above.