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Rectangular black lithium-ion battery pack with label showing 11.1V 74Whr 3-cell

Thinkstar

Thinkstar laptop battery 11.1V 74Whr 3-cell for Dell Inspiron 15 7559

SKU CH-7JG6-5JXZQ

A 11.1 V 74 Whr 3-cell lithium-ion replacement battery for Dell Inspiron 15 7559 and related models

  • Battery typeLithium-Ion
  • 74 Whr capacity extends runtime on a single charge
  • 1 V lithium-ion chemistry matches original Dell specifications
  • 3-cell design fits Inspiron 15 7559 and I7559 models
  • Replaces Dell part numbers 357F9, 071Jf4 and 71Jf4
  • Compatible with Inspiron 7566, 7567, 7557, 5576 and 5577

Replacement Battery for Inspiron 15 7559

This 11.1V lithium-ion pack delivers 74Whr across three cells and replaces Dell part numbers 357F9, 071Jf4 and 71Jf4. It fits Inspiron 15 7559, I7559, 7566, 7567, 7557, 5576 and 5577 models. The unit is supplied new and ready to install as a primary power source.

Sustained Capacity Delivery

Rated at 74Whr the battery maintains a steady 11.1V output throughout discharge rather than dropping off after a brief peak. Three-cell construction balances runtime with thermal stability during long work sessions. Users who need continuous all-day operation without a mains connection will find the capacity sufficient for typical productivity loads.

Physical Fit and Daily Handling

The pack measures 5 by .25 by 3 and slots directly into the existing battery bay without adapters or cable rerouting. A precise mould matches the original latch points so the laptop sits flat on a desk and the bottom cover closes cleanly. Buyers whose chassis has been modified or who require a higher-watt-hour alternative will need a different solution.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $50.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

Does the 11.1 V 74 Whr battery generate noticeable heat during long gaming sessions?

Lithium-ion chemistry and the 3-cell layout keep operating temperatures within normal laptop ranges under sustained load.

Which original Dell part numbers must my laptop already use for this replacement to fit?

It replaces Dell 357F9, 071Jf4 and 71Jf4 packs used in Inspiron 15 7559, I7559, 7566, 7567, 7557, 5576 and 5577 models.

Will the 357F9 replacement work alongside the original charger from an older Inspiron 7559?

Yes, the 11.1 V output matches the factory specification so the existing AC adapter charges it normally.

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