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Rectangular black laptop battery with six cells and label

FOCUSTEC

FOCUSTEC 6-cell 4400mAh 11.1V laptop battery for Dell J1KND

SKU CH-AXBP-D91MQ

A 6-cell lithium-ion replacement battery rated at 4400mAh and 11.1V restores power to compatible Dell Inspiron laptops

  • Battery TypeLithium-Ion
  • Reliable power for your Dell laptop with 4400mAh 11.1V capacity
  • Extended runtime from six lithium-ion cells rated at 49Wh
  • Built-in protection against short circuit, overheat and overload
  • Grade A cells deliver up to 500 charge cycles for longevity
  • Tested to meet OEM specifications for true charging capacity

6-cell 4400 mAh replacement battery

This new lithium-ion battery replaces the original Dell J1KND pack and fits a wide range of Inspiron models. It is built with grade-A cells and rated at 49 Wh, 11.1 V and 4400 mAh for true charging capacity that meets OEM specifications.

Suitable for owners of listed Dell notebooks

The pack suits users who need a direct replacement for part numbers such as 312-1201, 9T48V or 4T7JN and want safety features including short-circuit, overheat and overload protection. It is not for buyers who need a higher-capacity 9-cell design or a different voltage platform.

49 Wh capacity with 500-cycle life

The 6-cell layout delivers 49 Wh of energy, providing several hours of typical office use on a full charge. Runtime drops under heavy loads such as gaming or video rendering, and the chemistry is rated for up to 500 charge cycles before capacity noticeably fades.

Highlights

  • Reliable power for your Dell laptop with 4400mAh 11.1V capacity
  • Extended runtime from six lithium-ion cells rated at 49Wh
  • Built-in protection against short circuit, overheat and overload
  • Grade A cells deliver up to 500 charge cycles for longevity
  • Tested to meet OEM specifications for true charging capacity

Specifications

Battery TypeLithium-Ion

Questions about this item

My Dell Inspiron 15R uses a 11.1 V battery — will this 6-cell pack fit and power it?

This battery is listed for the Inspiron 15R and other models including N5010, N5110 and 1540, so it matches the voltage and form factor for those systems.

I plan to keep my original Dell 9T48V charger — does this replacement battery charge normally with it?

The pack is rated at 11.1 V and 4400 mAh, matching the OEM specification for the 9T48V, so the existing charger will charge it without any change.

After installing the battery, what should I see in Windows to confirm it is working correctly?

Windows will detect a 6-cell lithium-ion battery, report the design capacity of 49 Wh and show normal charge and discharge cycles.

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