Technize

What Battery Does a Dell Inspiron 7577 Take?

Dell Inspiron 7577

Here is the replacement battery this laptop takes.

Battery

Part numbers

  • DELL W7NKD7B — seen in 8 reports
  • DELL W7NKD7A — seen in 7 reports
  • DELL W7NKD68 — seen in 4 reports
  • DELL 7FHHV05 — seen in 3 reports
  • DELL 99NF27B — seen in 3 reports
  • DELL W7NKD79 — seen in 3 reports
  • DELL 99NF293 — seen in 2 reports
  • DELL W7NKD7C — seen in 2 reports

These are interchangeable OEM part numbers — any of these fits this slot.

Manufacturer
Samsung SDI, LG, BYD
Capacities observed
56 Wh, 54.7 Wh, 54 Wh
Voltage
15.20 V
Chemistry
Li-ion

This model legitimately shipped with multiple capacities in this slot — match the Wh rating on your existing battery’s label.

Based on 47 reports.

Based on 47 independent hardware reports for the Dell Inspiron 7577.

Before you order: check the part number printed on the label of your current battery against the numbers above. Vendors frequently ship different battery suppliers — or entirely different capacities — under the very same model name, so the printed part number is the only way to be certain of a fit.

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Check how much RAM it takes →

How we know

This answer is derived from 47 independent hardware reports for the Dell Inspiron 7577, of which 100% agree. We publish a model only when the reports agree overwhelmingly.

Check it yourself

On Windows, open a terminal and run powercfg /batteryreport, then open the generated HTML report — it names the battery’s model and part number. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0. On any laptop, the surest method is the label printed on the battery itself, visible once you remove the back panel.

More Dell laptops

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Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.