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Rectangular black lithium-ion battery pack measuring 8.2 by 1.9 by 0.7 inches with six cells

Lenovo

Lenovo T54FJTM 6-Cell 5800mAh 65Wh 11.1V Li-Ion UPS Replacement Battery

SKU CH-WJAG-080C1 MPN T54FJTM

Six-cell lithium-ion pack rated at 5800mAh and 65Wh powers compatible Dell Latitude notebooks

  • Reliable power for Dell Latitude notebooks
  • 6-cell lithium-ion design delivers 5800mAh capacity
  • 65Wh energy rating supports extended mobile use
  • 1V output matches original specifications
  • Proprietary form factor fits E5420 E5520 E6420 series

Genuine Lenovo 6-Cell 5800mAh Notebook Battery

This new Lenovo T54FJTM pack delivers 65 Wh at 11.1 V DC using six lithium-ion cells. It replaces OEM part numbers including 312-1163 and 312-1242 for compatible Dell Latitude notebooks. The proprietary form factor measures 8.2" by 1.9" by .7".

Suits owners of listed Latitude models needing

Buyers with a Latitude E5420, E5520, E6420, E6420 ATG, E6420 XFR, E6520, or E5220 can install this battery without modification. Laptops outside this explicit compatibility list will not fit or connect correctly.

11.1 V DC output voltage matches the original

The 11.1 V DC rating is the critical electrical parameter that must match the notebook's charging circuit. A different voltage will prevent charging or damage the system, so verify this figure before purchase.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $51.99
Pricier than about 61% of the 3,915 comparable items (median $39.99).

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Specifications

Size & build
Shipping weight0.45 kg
Package size229 × 145 × 58 mm

Questions about this item

How much power does the 5800mAh 65Wh 11.1V battery draw while charging all day?

The 6-cell lithium-ion pack charges at standard notebook rates; the 65Wh capacity and 11.1V output match the original Dell Latitude specifications.

Which Dell Latitude models must I already own for this T54FJTM battery to fit?

This replacement fits Dell Latitude E5420, E5220, E5520, E6420, E6420 ATG, E6420 XFR and E6520 notebooks.

Will the 8.2" x 1.9" x 0.7" proprietary case align with the screw holes on my older E6420?

Yes, the proprietary dimensions and OEM part numbers 312-1163, 312-1242 and others listed match the original E6420 battery bay exactly.

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