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Rectangular 6-cell 91 Whr lithium-ion notebook battery

Lenovo

Lenovo 6-cell 91whr Battery For Dell 451-BBSD-TM

SKU CH-3R9F-J4DEX

A 91 Whr lithium-ion rechargeable battery compatible with Dell Precision 7510, 7520 and 7710 notebooks

  • 91 Wh capacity supports long work sessions away from power
  • Rechargeable lithium-ion chemistry enables repeated charge cycles
  • Designed as direct replacement for Dell part 451-BBSD-TM
  • Compatible with Precision 7510, 7520 and 7710 notebooks
  • Proprietary form factor ensures correct fit in supported Dell models

Compatible Notebook Battery

This 91 Whr lithium-ion battery replaces the Dell 451-BBSD-TM unit in Precision 7510, 7520 and 7710 mobile workstations. It is a proprietary form-factor pack built by Total Micro Technologies for direct fitment. The six-cell design restores original run-time for users who need reliable mobile power. Condition is new and the pack is fully rechargeable.

Capacity Decides Fit

The 91 Whr rating is the single figure that determines whether this pack matches the original specification for the listed Precision models. A lower or higher watt-hour value would change physical dimensions or cell count and prevent correct installation. Verify the 91 Whr mark on the existing battery before ordering. No other capacity is offered for this part number.

Sustained Discharge Behaviour

Lithium-ion chemistry delivers steady voltage across the discharge curve rather than a brief peak followed by rapid sag. The six-cell layout spreads load evenly, limiting per-cell stress during long work sessions. Recharge cycles restore full capacity without memory effect, supporting consistent daily use. Performance remains stable until the pack reaches its natural end of life.

Highlights

  • 91 Wh capacity supports long work sessions away from power
  • Rechargeable lithium-ion chemistry enables repeated charge cycles
  • Designed as direct replacement for Dell part 451-BBSD-TM
  • Compatible with Precision 7510, 7520 and 7710 notebooks
  • Proprietary form factor ensures correct fit in supported Dell models

Specifications

No published specifications for this item yet.

Questions about this item

What does the 91 Wh rating mean for daily use in a Precision notebook?

The 91 Wh capacity stores enough energy to power a Precision 7510, 7520 or 7710 through a full workday under typical office loads, reducing the need to carry a charger.

Which Dell models are confirmed compatible with this replacement battery?

This battery is listed as compatible with Dell Precision 7510, Precision 7520 and Precision 7710 notebooks.

Does the proprietary form factor fit the original battery bay without modification?

Yes, the proprietary size is designed to match the factory battery bay in the supported Precision models, so it installs directly without adapters.

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