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Rectangular black lithium-ion laptop battery with label showing 74WH 11.1V 357F9

FOCUSTEC

FOCUSTEC 74WH 357F9 Laptop Battery for Dell Inspiron 15 7000 Gaming

SKU CH-C8JS-Z4FWE

74 Wh lithium-ion replacement battery for Dell Inspiron 15 5000 and 7000 gaming laptops with overcharge and short-circuit protection

  • Battery TypeLithium-Ion
  • 74 Wh capacity extends runtime on compatible Dell Inspiron 15 models
  • Lithium-ion chemistry delivers 11.1 V nominal voltage for stable power delivery
  • Certified to UL, CE, FCC and RoHS standards for safe operation
  • Built-in protection guards against overcharge, overdischarge, over-temperature and short-circuit
  • Supports up to 1000 recharge cycles over the battery life

74Wh Lithium-Ion Battery for Dell Gaming Laptops

This 74Wh lithium-ion replacement battery suits Dell Inspiron 15 5000 and 7000 series gaming models including 5576 5577 7557 7559 7566 and 7567. It also fits INS15PD series part numbers 1548 1748 1848 2548 2748 3848 and 3948. The unit replaces original part numbers 357F9 0357F9 0GFJ6 71JF4 071JF4 P57F P57F003 P65F and P65F001. Built-in protection circuits guard against overcharge overdischarge over-temperature and short-circuit.

Practical limits of 11.1V lithium-ion chemistry

Capacity is fixed at 74Wh and voltage at 11.1V so runtime depends on the laptop's power draw and cannot exceed the cell rating. The chemistry supports up to 1000 recharge cycles before noticeable degradation. UL CE FCC and RoHS certifications confirm baseline safety compliance but do not extend cycle life or capacity. No firmware or software calibration tool is supplied; the battery relies on the laptop's own charge controller.

What to verify on your Dell before ordering

Confirm the exact model number appears in the compatible list such as i5577-7342blk-pus i7559-5012GRY i7559-7512gry or i7559-3763blk. Check that the original battery label shows one of the listed part numbers 357F9 0GFJ6 71JF4 P57F or P65F. Ensure the laptop chassis accepts the standard 74Wh form factor used in these Inspiron 15 gaming units. No other Dell series or non-gaming Inspiron models are covered by this part.

Highlights

  • 74 Wh capacity extends runtime on compatible Dell Inspiron 15 models
  • Lithium-ion chemistry delivers 11.1 V nominal voltage for stable power delivery
  • Certified to UL, CE, FCC and RoHS standards for safe operation
  • Built-in protection guards against overcharge, overdischarge, over-temperature and short-circuit
  • Supports up to 1000 recharge cycles over the battery life

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I know this 74WH 357F9 battery fits my Dell Inspiron 15 7000 Gaming model?

This battery replaces Dell part numbers 357F9, 0357F9, 0GFJ6, 00GFJ6, 71JF4, 071JF4, P57F, P57F003, P65F and P65F001. It is compatible with Inspiron 15 5576, 5577, 7566, 7567, 7557, 7559 and INS15PD series laptops.

What runtime can I expect from the 74WH rating in my Inspiron 15 7000 Gaming?

The 74WH capacity at 11.1V delivers the same energy as the original Dell battery. Actual runtime depends on your workload, screen brightness and power settings, but the capacity matches the factory specification for these models.

Does the 11.1V output work with my laptop's charging circuit?

Yes. The 11.1V rating matches the original Dell 357F9 battery voltage, so it connects directly to the existing charging circuit without modification. The built-in protection circuits manage charge and discharge safely.

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