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Black rectangular 3-cell lithium-ion laptop battery

NShi

NShi 44Wh 11.2V 3-cell laptop battery for ThinkPad T550 T550s T560 W550 W550s

SKU CH-NQRE-8MWGR

A 44 Wh, 11.2 V, three-cell lithium-ion replacement battery for ThinkPad T550, T550s, T560, W550 and W550s models

  • ColorBlack
  • TypeBattery
  • CompatibilityThinkpad T550, Thinkpad T550s, Thinkpad T560, Thinkpad W550,
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.2V
  • Battery Capacity3911mah
  • Ready for ThinkPad T550, T550s, T560, W550 and W550s
  • 44 Wh capacity keeps you working longer between charges
  • 3-cell lithium-ion design at 11.2 V for stable power
  • Replaces OEM part numbers 45N1740, 45N1741, 45N1742, 45N1743, SB10K12721, 00NY639
  • Tested for correct voltage, circuit protection, low self-discharge and CE, FCC, RoHS safety compliance

Ready replacement for ThinkPad T550 series

This new 3-cell lithium-ion battery delivers 44 Wh at 11.2 V and fits the ThinkPad T550, T550s, T560, W550 and W550s. It restores mobile power for owners of those models who need a direct swap.

Voltage and capacity match the original

The pack is rated at 11.25 V and 44 Wh with a 3911 mAh cell configuration, matching the OEM 45N1740, 45N1741, 45N1742 and 45N1743 specifications. Buyers whose laptops require a different voltage or higher watt-hour rating cannot use this unit.

Tested for circuit protection

Each unit is checked for correct voltage, circuit protection, stable current and low self-discharge, and carries CE, FCC and RoHS marks. No additional software, drivers or cables are included in the package.

Highlights

  • Ready for ThinkPad T550, T550s, T560, W550 and W550s
  • 44 Wh capacity keeps you working longer between charges
  • 3-cell lithium-ion design at 11.2 V for stable power
  • Replaces OEM part numbers 45N1740, 45N1741, 45N1742, 45N1743, SB10K12721, 00NY639
  • Tested for correct voltage, circuit protection, low self-discharge and CE, FCC, RoHS safety compliance

Specifications

BrandGreenTech
Model45N1740, 45N1741, 45N1742, 45N1743, SB10K12721, 00NY639
ColorBlack
TypeBattery
CompatibilityThinkpad T550, Thinkpad T550s, Thinkpad T560, Thinkpad W550, Thinkpad W550s
Battery Type3 Cell Lithium-Ion
Battery Voltage11.2V
Battery Capacity3911mah

Questions about this item

How long will the 44 Wh rating actually run a ThinkPad T550?

A 44 Wh pack typically delivers three to five hours of mixed office work on a T550, depending on screen brightness, background apps and battery age.

Does the 11.2 V output match the original Lenovo 45N1740 specification?

Yes, the 11.2 V rating aligns with the OEM 45N1740 and 45N1743 parts, so the laptop's charging circuit recognises it without firmware issues.

Will this three-cell pack fit the internal battery bay of a W550s without modification?

The pack is built to the same 3-cell form factor as the original 45N1742, so it slides into the W550s bay and secures with the existing latch.

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