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Rectangular black 6-cell lithium-ion laptop battery pack

FOCUSTEC

FOCUSTEC 57 Wh 6-cell 10.8 V laptop battery for Lenovo ThinkPad T410 T510 T520 W510 W520

SKU CH-YQ66-G05XQ

A 57 Wh, 6-cell lithium-ion replacement battery rated at 10.8 V for Lenovo ThinkPad T410, T510, T520, W510 and W520 models

  • Battery TypeLithium-Ion
  • 57 Wh capacity powers extended work sessions
  • 6-cell lithium-ion design delivers reliable energy density
  • 8 V output matches original ThinkPad specifications
  • Compatible with T410 T510 T520 W510 W520 models
  • CE and FCC certified for safe operation

Compatible Lenovo ThinkPad models

This 57 Wh lithium-ion battery replaces the original power pack in ThinkPad T410, T510, T520, W510 and W520 systems. It also fits Edge E40, E50, E420, E425, E520, E525 and L-series models including L412, L420 and L512. The six-cell design restores mobile runtime for owners of these legacy notebooks. Buyers needing a battery for newer ThinkPad generations or for ultrabook chassis will not find a match here.

Thermals noise and power draw

Lithium-ion chemistry delivers the rated 10.8 V output with no moving parts, so the pack adds no audible noise during operation. Normal discharge generates only modest warmth comparable to the factory unit. The 57 Wh capacity supports up to 500 recharge cycles over the battery's service life. CE and FCC certification confirms compliance with basic electrical safety limits.

Included certification and cycle rating

The bundle consists solely of the replacement battery; no tools, screws or software utilities are supplied. The 500-cycle rating and CE/FCC marks indicate the cell pack meets standard safety and longevity benchmarks. Users must rely on the laptop's own power-management firmware for charge monitoring and health reporting.

Highlights

  • 57 Wh capacity powers extended work sessions
  • 6-cell lithium-ion design delivers reliable energy density
  • 8 V output matches original ThinkPad specifications
  • Compatible with T410 T510 T520 W510 W520 models
  • CE and FCC certified for safe operation

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the 6-cell 10.8 V battery in my ThinkPad T410, and what step do people often miss?

Slide the pack into the bottom bay until both latches click, then charge it fully before first use; skipping that initial full charge is the common mistake.

When will the 57 Wh pack need replacement based on its rated cycle life?

The manufacturer rates it for up to 500 recharge cycles, so plan a swap once runtime drops noticeably after that many full charges.

What is the first limit I will hit during a long work session with this 57 Wh battery?

Capacity is the limiting factor — at 57 Wh the pack will deplete before any thermal or voltage ceiling is reached.

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