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Black rectangular lithium-ion laptop battery with connector pins

Beisite

Beisite 11.52V 55Wh/57Wh laptop battery for ThinkPad T490s T495s T14s

SKU CH-9DJ9-E2143

11.52V lithium-ion replacement battery delivering 55Wh or 57Wh for ThinkPad T490s, T495s and T14s models

  • Battery typeLithium-Ion
  • Battery voltage rating11.52 V
  • Battery capacity55 Wh/57 Wh
  • Product colorBlack
  • Product typeBattery
  • Ready-to-install 11.52V lithium-ion cell restores mobile power
  • 55Wh/57Wh capacity matches original runtime expectations
  • Replaces 31CP5/88/70 and SB10-series part numbers directly
  • Fits ThinkPad T490s, T495s and T14s models precisely
  • Brand-new condition with 12-month supplier warranty included

Compatible replacement battery for ThinkPad T490s

This new lithium-ion battery replaces multiple Lenovo part numbers including L18C3PD1, L18M3PD1 and 31CP5/88/70. It fits ThinkPad T490s, T495s and T14s series laptops. The unit ships as any compatible variant depending on stock. One battery is included in the package.

Practical limits of the 11.52V lithium-ion design

The battery operates at 11.52V with a rated capacity of 55Wh or 57Wh depending on the specific variant supplied. Voltage differences between compatible part numbers are normal and do not affect fit or function. Lithium-ion chemistry provides stable output for daily mobile workloads. Runtime scales with the capacity of the variant received.

Upgrades from depleted

This battery replaces worn original cells that no longer hold a useful charge. It also supersedes lower-capacity factory packs where a 55Wh or 57Wh unit was not originally fitted. The jump is worth it when the current battery cannot sustain a full work session away from mains power. Buyers needing hot-swap capability or a second battery for continuous operation should look elsewhere.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $33.99
Pricier than about 60% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameL18C3PD1 L18M3PD1 L18L3PD1
Model nameL18C3PD1 L18M3PD1 L18L3PD1
Part number31CP5/88/70
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.52 V
Battery capacity55 Wh/57 Wh

Questions about this item

Which part number should I pick — 31CP5/88/70, L18C3PD1, L18M3PD1 or L18L3PD1?

The supplier ships any of the listed part numbers interchangeably; they are cross-compatible even though the voltage markings differ.

What runtime can I expect from the 55Wh/57Wh rating in a ThinkPad T490s?

The 11.52 V lithium-ion pack delivers 55 Wh to 57 Wh, which typically provides several hours of mixed use depending on screen brightness and workload.

Does the battery use a proprietary connector or a standard interface?

It connects via the ThinkPad internal battery connector used in the T490s, T495s and T14s series; no external cable or adapter is required.

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