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Black rectangular laptop battery with connector strip

GreenTechLLC

GreenTechLLC L20M3PD4 SB11C73243 laptop battery 11.1V 45Wh 3-cell

SKU CH-9ACA-QR61Y

Replacement 11.1V 45Wh 3-cell lithium-ion battery for Lenovo ThinkPad E14 and E15 Gen 2-4 models

  • Battery type3 Cell Lithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity4120mah
  • Measurements11.5 × 2.8 × 0.2 in
  • Product colorBlack
  • Product typeBattery
  • Powers ThinkPad E14 and E15 Gen 2‑4 with 45 Wh capacity
  • Three lithium‑ion cells deliver 11.1 V stable voltage for reliable operation
  • 4120 mAh rating supports extended mobile work sessions
  • Slim 11.50 × 2.8 × .2 in profile fits original battery bay
  • Weighs .7 lb keeping the laptop light for travel

Replacement Battery for ThinkPad E14 and E15

This GreenTech battery replaces multiple OEM part numbers for Lenovo ThinkPad E14 Gen 2, 3 and 4 as well as E15 Gen 2, 3 and 4 models. It is a 3-cell lithium-ion unit rated at 11.1V and 45Wh. The pack is supplied new and carries CE, FCC and RoHS safety certifications.

Suitable for owners of listed ThinkPad models

Users with a compatible ThinkPad E14 or E15 seeking a direct 45Wh replacement will find this battery fits the specified part numbers. Buyers who need a higher capacity pack or a different voltage should look at other options. The battery is not intended for laptops outside the listed compatibility list.

No bundled accessories or software included

The package contains only the battery itself; no tools, screws or installation software are supplied. The absence of extras keeps the purchase focused on the core replacement component. Installers should reuse any existing hardware from the original battery.

How it compares

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

Price $49.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model nameL20C3PD4, L20D3PD4, L20L3PD4, L20M3PD4, L19M3PD5, SB11C73240, SB11C73241, SB11C73243, SB11E24664, SB11N52007, SB11N52028, SB11N52046, 5B11C73242, 5B11C73244, 5B11C73245, 5B11E24665, 5B11N52015, 5B11N52025, 5B11N52031, 5B11N52048, 5B10 × 02606
Part numberL20C3PD4, L20D3PD4, L20L3PD4, L20M3PD4, L19M3PD5, SB11C73240, SB11C73241, SB11C73243, SB11E24664, SB11N52007, SB11N52028, SB11N52046, 5B11C73242, 5B11C73244, 5B11C73245, 5B11E24665, 5B11N52015, 5B11N52025, 5B11N52031, 5B11N52048, 5B10 × 02606
Product colorBlack
Product typeBattery
Power
Battery type3 Cell Lithium-Ion
Battery voltage rating11.1 V
Battery capacity4120mah
Size & build
Measurements11.5 × 2.8 × 0.2 in
Product weight0.7 lb (0.32 kg)
Compatibility
Compatible withLENOVO THINKPAD E14 GEN 2, E14 GEN 2 20T6, E14 GEN 2 20T7, E14 GEN 2 20TA, E14 GEN 2 20 TB, E14 GEN 3, E14 GEN 3 20Y7, E14 GEN 3 20YD, E14 GEN 3 20YE, E14 GEN 3 20YF, E14 GEN 4, E14 GEN 4 21E3, E14 GEN 4 21E4, E14 GEN 4 21EB, E14 GEN 4 21EC, E15 GEN 2, E15 GEN 2 20T8, E15 GEN 2 20T9, E15 GEN 2 20TD, E15 GEN 2 20TE, E15 GEN 3, E15 GEN 3 20YG, E15 GEN 3 20YH, E15 GEN 3 20YJ, E15 GEN 3 20YK, E15 GEN 4, E15 GEN 4 21E6, E15 GEN 4 21E7, E15 GEN 4 21ED, E15 GEN 4 21EE

Questions about this item

Does my ThinkPad E14 Gen 3 20Y7 need any extra cable or bracket to fit the L20M3PD4 battery?

The L20M3PD4 is a direct replacement for OEM part L20M3PD4 and SB11C73243; it slides into the existing battery bay on compatible E14 and E15 models with no additional hardware required.

Will the 11.1V 4120mAh pack work correctly with the original 45W or 65W USB-C charger that came with my E15 Gen 2?

Yes, the battery matches the factory 11.1V 45Wh specification, so the laptop's existing power adapter and charging circuit will recognise and charge it normally.

After installing the SB11C73243 replacement, what should I check in Lenovo Vantage to confirm the battery is healthy?

Open Lenovo Vantage, go to Power > Battery Details, and verify that Design Capacity reads 45Wh, Cycle Count starts near zero, and Status shows Good or Normal.

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