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Battery pack Dell Lithium-Ion 40Wh model 9F4FN — compatible laptop battery, rechargeable
Summary description:
Lithium‑Ion battery Dell 40Wh (model 9F4FN) is a rechargeable replacement battery designed for compatible Dell laptops. With a nominal capacity of 40 watt‑hours, it supplies portable power for everyday mobile use, extending run time for work, travel or study. Intended as a direct replacement part, it supports standard charging procedures and helps restore device mobility.