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Rectangular black laptop battery with label showing 74Wh 11.4V

DELL

DELL 357F9 74Wh 11.4V laptop battery for Inspiron 15 5576 5577 7557 7559 7566 7567

SKU CH-JVEE-CJTK2

74 Wh lithium-ion battery powers compatible Dell Inspiron 15 models including 5576, 5577, 7557, 7559, 7566 and 7567

  • CompatibilityCompatible with Dell Inspiron 15 5576 5577 7566 7567 7557 75
  • Battery TypeLithium-Ion
  • 74Wh capacity extends usage time between charges
  • 4V lithium-ion chemistry matches original Dell specification
  • Four premium cells deliver consistent power output
  • 100% compatible with Inspiron 15 5576 5577 7557 7559 7566 7567
  • CE and RoHS certified for safety and environmental compliance

Replacement battery for Inspiron 15 models

This 74Wh lithium-ion unit replaces the original Dell 357F9 pack in Inspiron 15 5576, 5577, 7557, 7559, 7566 and 7567 notebooks. It delivers 11.4V from four premium cells and carries CE and RoHS certification. The pack is sold new with a one-year replacement warranty.

Thermals noise and power draw

Lithium-ion chemistry keeps self-discharge low and maintains stable voltage during typical office, streaming and browsing loads. The battery produces no audible noise and adds no active cooling requirement to the chassis. Normal use sees the pack warm only slightly as energy passes through the cells.

Fit and build integration

The brick-shaped pack slides into the existing battery bay without adapters or cable changes. Verify the original part number against the product photos before ordering because two incompatible variants exist for these models. Installation frees the AC adapter for stationary use while restoring full mobile runtime.

Highlights

  • 74Wh capacity extends usage time between charges
  • 4V lithium-ion chemistry matches original Dell specification
  • Four premium cells deliver consistent power output
  • 100% compatible with Inspiron 15 5576 5577 7557 7559 7566 7567
  • CE and RoHS certified for safety and environmental compliance

Specifications

CompatibilityCompatible with Dell Inspiron 15 5576 5577 7566 7567 7557 7559
Battery TypeLithium-Ion

Questions about this item

How do I install the 357F9 74Wh battery in my Inspiron 15 5576 and what step is often missed?

Power off the laptop, unplug the AC adapter, remove the base cover screws, disconnect the old battery cable before lifting it out, connect the new 4-cell pack, then reassemble; the step most people skip is disconnecting the cable first.

What maintenance or replacement will the 11.4V 74Wh lithium-ion pack need later?

Lithium-ion cells degrade with charge cycles; expect gradual capacity loss after several hundred cycles and plan to replace the pack when run-time no longer meets your needs.

What limit appears first on the 4-cell 74Wh battery during sustained heavy use?

The 74 watt-hour capacity sets the runtime ceiling; under continuous high load the pack will reach its energy limit and require recharging before a thermal or voltage limit is hit.

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