GreenTechLLC
GreenTechLLC L20C4P71 57WHR laptop battery for ThinkPad X1 Carbon Gen 9 10 11 Yoga Gen 6 7 8
57 Whr lithium-ion replacement battery for ThinkPad X1 Carbon and Yoga models
- ColorBlack
- TypeBattery
- CompatibilityTHINKPAD X1 CARBON GEN 9, X1 CARBON GEN 9 20XW, X1 CARBON GE
- Battery Type4 Cell Lithium-Ion
- Battery Voltage15.44V
- Battery Capacity3695MAH
- 57Whr capacity supports long work sessions
- 44V 3695mAh lithium-ion cell matches OEM power specs
- Four-cell design keeps weight low for ultraportable laptops
- Replaces ten Lenovo part numbers including L20C4P71 and SB10T83217
- Tested for voltage stability circuit protection and CE FCC RoHS compliance
GreenTech 57WHR battery for ThinkPad X1
This new GreenTech L20C4P71 battery replaces the original Lenovo unit in ThinkPad X1 Carbon Gen 9, Gen 10 and Gen 11 as well as X1 Yoga Gen 6, Gen 7 and Gen 8. It is a 4-cell lithium-ion pack rated at 15.44V and 3695mAh. The part is CE, FCC and RoHS certified and tested for voltage, circuit protection and low self-discharge.
Suits owners of listed X1 Carbon and X1 Yoga models
Buyers with a ThinkPad X1 Carbon Gen 9, 10 or 11 or X1 Yoga Gen 6, 7 or 8 can use this battery as a direct replacement. It will not fit other ThinkPad series, older X1 generations or laptops from different manufacturers. Users needing a higher-capacity pack or a different voltage should look for an alternative part.
57WHR capacity decides runtime
The 57WHR rating determines how long the laptop runs on a single charge. Match this figure to the original battery label to confirm compatibility. If your original battery shows a different watt-hour value, this pack will not provide the expected runtime.
Highlights
- 57Whr capacity supports long work sessions
- 44V 3695mAh lithium-ion cell matches OEM power specs
- Four-cell design keeps weight low for ultraportable laptops
- Replaces ten Lenovo part numbers including L20C4P71 and SB10T83217
- Tested for voltage stability circuit protection and CE FCC RoHS compliance
Specifications
| Brand | GreenTech |
|---|---|
| Model | L20C4P71, L20M4P71, L20D4P71, 5B10W13972, 5B10W13973, 5B10W13974, 5B10W13975, SB10T83216, SB10T83217, SB10T83218 |
| Part Number | L20C4P71, L20M4P71, L20D4P71, 5B10W13972, 5B10W13973, 5B10W13974, 5B10W13975, SB10T83216, SB10T83217, SB10T83218 |
| Color | Black |
| Type | Battery |
| Compatibility | THINKPAD X1 CARBON GEN 9, X1 CARBON GEN 9 20XW, X1 CARBON GEN 9 20XX, X1 YOGA GEN 6, X1 YOGA GEN 6 20XY, X1 YOGA GEN 6 20Y0, X1 CARBON GEN 10, X1 CARBON GEN 10 21CB, X1 CARBON GEN 10 21CC, X1 YOGA GEN 7, X1 YOGA GEN 7 21CD, X1 YOGA GEN 7 21CE, X1 CARBON GEN 11, X1 CARBON GEN 11 21HM, X1 CARBON GEN 11 21HN, X1 YOGA GEN 8, X1 YOGA GEN 8 21HQ, X1 YOGA GEN 8 21HR |
| Battery Type | 4 Cell Lithium-Ion |
| Battery Voltage | 15.44V |
| Battery Capacity | 3695MAH |
Questions about this item
How can I confirm the 15.44V 3695mAh battery is recognised correctly after fitting it?
Power on the ThinkPad and open Lenovo Vantage or the BIOS; the tool will show 15.44 V, 3695 mAh, 57 Whr and a 4-cell count if the replacement is detected properly.
What comes in the box and do I need to buy any tools or cables separately?
Only the Black 4-cell Lithium-Ion battery is supplied; no screwdrivers, cables or additional parts are included.
Which of the listed part numbers such as L20C4P71, 5B10W13973 or SB10T83217 should I choose for my X1 Carbon Gen 10?
All listed numbers — L20C4P71, L20M4P71, L20D4P71, 5B10W13972 through 13975, SB10T83216 through 83218 — refer to the same 57 Whr unit; pick the one that matches the sticker on your original battery.
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