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Rectangular black lithium-polymer laptop battery with six cells and two small screwdrivers

FOCUSTEC

FOCUSTEC 74Wh 6-Cell 11.1V Type 357F9 71JF4 Laptop Battery

SKU CH-H0GR-SSJBS

74Wh 6-cell 11.1V lithium-ion battery fits Dell Inspiron 15 7000 and 5000 series models including 7559, 7567, 5576 and 5577

  • Battery TypeLithium-Ion
  • 74Wh capacity supports long gaming sessions on Dell Inspiron 15 7000
  • 6-cell lithium polymer design delivers stable 11.1V power for compatible models
  • CE FCC RoHS certified cells with built-in circuit protection for safe operation
  • Replaces part numbers 357F9 71JF4 0GFJ6 across Inspiron 15 5000 and 7000 series
  • Includes two screwdrivers for straightforward self-installation

FOCUSTEC 74Wh 6-Cell Laptop Battery

The FOCUSTEC 74Wh 6-cell lithium-ion battery replaces the original power pack in compatible Dell Inspiron 15 7000 and 5000 series laptops. It is built for owners of models such as the 7559, 7567, 5576 and 5577 who need a new, ready-to-install unit. Two screwdrivers are included to simplify the swap.

Voltage Match 11.1V

The single specification that decides fit is the 11.1V nominal voltage, which must match the laptop's original battery rating. This unit also carries the 11.4V label found on several Dell part numbers including 357F9, 0GFJ6 and 71JF4. If the original battery shows a different voltage the pack will not work.

74Wh Capacity and Runtime

At 74Wh the pack delivers a full day of typical office work or several hours of gaming on the supported Inspiron 15 chassis. The six Grade A cells provide fast charging and low self-discharge, while built-in circuit protection guards against over-charge and short circuits. It will not suit users who need a higher-watt-hour design for extended off-grid sessions.

Highlights

  • 74Wh capacity supports long gaming sessions on Dell Inspiron 15 7000
  • 6-cell lithium polymer design delivers stable 11.1V power for compatible models
  • CE FCC RoHS certified cells with built-in circuit protection for safe operation
  • Replaces part numbers 357F9 71JF4 0GFJ6 across Inspiron 15 5000 and 7000 series
  • Includes two screwdrivers for straightforward self-installation

Specifications

Battery TypeLithium-Ion

Questions about this item

How long will the 74Wh rating actually run my Dell Inspiron 15 7000 gaming laptop?

The 74Wh capacity typically delivers several hours of mixed use on a 6-cell lithium-polymer pack, though exact runtime depends on screen brightness, GPU load and power-profile settings.

Does the 11.1V output match the original Dell 11.4V part numbers 357F9 and 71JF4?

Yes — the 11.1V nominal voltage is fully compatible with the 11.4V OEM spec used in Dell part numbers 357F9, 0357F9, 71JF4 and 071JF4.

Will the Type 357F9 battery fit my Inspiron 15 5000 series 5576 without extra brackets?

The pack is a direct mechanical replacement for the listed 5576, 5577, 7559, 7557, 7567, 7566 and 7759 chassis; two screwdrivers are included for the existing screw holes.

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