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Rectangular black lithium-ion laptop battery pack

FOCUSTEC

FOCUSTEC laptop battery 42Wh 11.4V for Dell Inspiron 15 5000 7000 13 7000

SKU CH-2488-HMGSG

42Wh 11.4V lithium-ion replacement battery rated for over 1000 charge cycles, compatible with Dell Inspiron 15 5000, 15 7000 and 13 7000 series models

  • Battery TypeLithium-Ion
  • Over 1000 charge cycles extends usable lifespan
  • 42Wh capacity restores original run time
  • 4V 3500mAh lithium-ion matches Dell specifications
  • Overheat, short-circuit and overload protections safeguard hardware
  • Compatible with Inspiron 15 5000, 7000 and 13 7000 series

42Wh replacement for Dell Inspiron

This 42Wh lithium-ion battery operates at 11.4V and delivers 3500mAh of capacity. It is built as a direct replacement for Dell Inspiron 15 5000, 15 7000, 13 7000 and the specific models listed in the compatibility data. The pack uses grade A cells and a smart control chip to restore mobility to compatible laptops.

Sustained discharge over 1000 cycles

The battery is rated for over 1000 charge cycles, so it maintains usable capacity through daily charging routines rather than degrading after a few months. Integrated overheat, short-circuit and overload protections keep the pack stable during long work sessions. A-grade cells and the onboard management chip work together to deliver consistent voltage across the discharge curve.

Practical limits of lithium-ion chemistry

Lithium-ion packs gradually lose capacity with each cycle, so runtime will shorten after several hundred charges even with premium cells. The 42Wh rating sets the total energy available per charge, defining the maximum unplugged time for a given workload. Compatibility is limited to the Dell Inspiron models explicitly listed; other laptops cannot use this pack.

Highlights

  • Over 1000 charge cycles extends usable lifespan
  • 42Wh capacity restores original run time
  • 4V 3500mAh lithium-ion matches Dell specifications
  • Overheat, short-circuit and overload protections safeguard hardware
  • Compatible with Inspiron 15 5000, 7000 and 13 7000 series

Specifications

Battery TypeLithium-Ion

Questions about this item

How much heat or noise does the 42Wh 11.4V battery produce during all-day use?

The lithium-ion pack has no moving parts, so it runs silently and generates only normal warmth during charge or discharge cycles.

What must I already own for this 42Wh 11.4V pack to work in my Dell?

A compatible Dell Inspiron model such as the 15 5000, 15 7000, 13 7000 or the specific variants listed — 5570, 5567, 7579, 5578, 5568, 7569, 5579, 5565, 7573, 13 7378, 5378, 7368, 5379, 5368, 7375 — with the original charging circuit intact.

Will this 42Wh 11.4V replacement behave the same as the original battery in an older Inspiron 5568 or 7368?

Yes, it matches the 42Wh, 3500mAh and 11.4V ratings and includes overheat, short-circuit and overload protection, so daily operation feels identical to the factory pack.

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