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Lenovo ThinkPad L13 Yoga Gen 3 Compatible Battery 15.36V 43.78Wh

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From $93.99 USD $115.99
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Fits Lenovo ThinkPad L13 Yoga Gen 3 Intel and replaces OEM part 5B10W51848.
15.36V, 2850mAh capacity restores full charge cycles on this 2-in-1 convertible ultrabook.
Connector seats flush into the bottom panel slot with standard latch — no adapter needed.
We bench-tested the cell against the stock pack; BMS accepted the EEPROM handshake on first insertion.
After installation, discharge fully to hibernation cutoff, then charge uninterrupted to 100% to reset the BIOS battery learn cycle.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

15.36V

Amp

2850mAh

Lenovo ThinkPad L13 Yoga Gen 3 / L13 Gen 3 & Gen 4 — 15.36V Li-Polymer Replacement Battery (5B10W51848)

This is a 15.36V, 2850mAh (43.78Wh) Li-Polymer replacement battery for the Lenovo ThinkPad L13 Yoga Gen 3 (Intel), L13 Gen 3, and L13 Gen 4 series. It replaces OEM part numbers including 5B10W51848, L21C4PG1, L21D4PG1, L21M4PG1, SB10W51949, and related variants. The connector, BMS handshake protocol, and cell configuration match the original Lenovo specification.

  • L13 Yoga Gen 3 / L13 Gen 3 and Gen 4 compatibility: Intel and AMD variants across these generations share the same 15.36V four-cell Li-Polymer architecture and physical footprint. The BMS communication protocol is identical across the lineup, so one cell fits all covered models without firmware or connector differences.
  • Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on an L13 Gen 3 unit. The BMS handshake completed on first connection, charge current accepted at spec rate, and cell voltage held steady across varied CPU and display load states.
  • Post-install calibration on ThinkPad L13 series: After fitting, discharge the laptop fully until it hibernates on its own, then charge uninterrupted to 100% without using the machine. This runs the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting poor battery health immediately after fitting a new cell

ThinkPad BIOS reads health data from EEPROM stored on the battery's BMS board. When a new cell is installed, that EEPROM counter does not match what the BIOS expects from a fresh charge cycle, so it flags the battery as degraded even though the cell is new. This is not a fault with the replacement — it is a calibration mismatch. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100%. After that cycle completes, the BIOS health reading will reset to reflect the actual cell state.

Laptop shuts down at 20–30% charge showing on screen

This happens when the fuel gauge IC on the BMS still holds calibration data from the old, degraded cell. It maps the remaining charge curve inaccurately, calling a shutdown before the new cell is actually empty. Under combined CPU and display load the voltage sag looks steeper than the IC expects, triggering a premature cutoff. Run two to three full discharge-to-hibernate then full-charge cycles without interruption — after that the fuel gauge IC recalibrates against the new cell's actual voltage curve and the cutoff point moves back to the correct level near 3.0V per cell.

Compatible Models

ThinkPad L13 Yoga Gen 3(Intel)21B5003MIU ThinkPad L13 Gen 3(Intel)-21B3004WGR ThinkPad L13 Gen 3(AMD)-21B9000SSC ThinkPad L13 Gen 4(AMD)21FN0009CY ThinkPad L13 Gen 3(Intel)-21B40011AU ThinkPad L13 Gen 3(AMD)-21B9002RCY ThinkPad L13 Yoga Gen 4(AMD)21FR000YHV ThinkPad L13 Yoga Gen 3(AMD)21BB002QMH ThinkPad L13 Gen 3(Intel)-21B30030UE ThinkPad L13 Gen 3(Intel)-21B3001QKD ThinkPad L13 Yoga Gen 3(Intel)21B50024UE ThinkPad L13 Gen 3(AMD)-21B9000LMS ThinkPad L13 Gen 4(AMD)21FN0017UE ThinkPad L13 Yoga Gen 3(Intel)21B5001GMD ThinkPad L13 Yoga Gen 3(AMD)21BB002FSC ThinkPad L13 Gen 3(AMD)-21B9002YGE ThinkPad L13 Gen 3(AMD)-21B90027FE ThinkPad L13 Yoga Gen 4(Intel)21FJ0002PG ThinkPad L13 Gen 3(Intel)-21B3004RBM ThinkPad L13 Gen 3(Intel)-21B30010CX ThinkPad L13 Gen 4(AMD)21FN0005HV ThinkPad L13 Gen 4(Intel)21FG0007ZA ThinkPad L13 Yoga Gen 3(Intel)21B50013MN ThinkPad L13 Yoga Gen 3(AMD)21BB0026IV ThinkPad L13 Gen 3(AMD)-21B9002MHV ThinkPad L13 Gen 3(AMD)-21B9002ERT ThinkPad L13 Yoga Gen 4(Intel)21FJ000AIV ThinkPad L13 Yoga Gen 3(AMD)21BB000NUK ThinkPad L13 Yoga Gen 3(AMD)21BC000EAU ThinkPad L13 Gen 3(Intel)-21B30070EQ ThinkPad L13 Gen 3(Intel)-21B30017PB ThinkPad L13 Yoga Gen 3(Intel)21B50021GM ThinkPad L13 Gen 4(AMD)21FN000DAD ThinkPad L13 Gen 4(Intel)21FG000FRI ThinkPad L13 Yoga Gen 3(Intel)21B50016RI ThinkPad L13 Yoga Gen 3(Intel)21B5001UMN ThinkPad L13 Yoga Gen 4(Intel)21FJ001VGB ThinkPad L13 Gen 3(AMD)-21B90023IX ThinkPad L13 Yoga Gen 3(AMD)21BB000HGM ThinkPad L13 Gen 3(Intel)-21B3002DED ThinkPad L13 Gen 3(Intel)-21B3001FGM ThinkPad L13 Yoga Gen 3(Intel)21B5002NGR ThinkPad L13 Gen 4(Intel)21FG0004EE ThinkPad L13 Gen 4(Intel)21FG001UPG ThinkPad L13 Yoga Gen 3(AMD)21BB002PEQ ThinkPad L13 Yoga Gen 3(Intel)21B5001APB ThinkPad L13 Yoga Gen 3(Intel)21B5001LRT ThinkPad L13 Gen 3 21B3004KMY ThinkPad L13 Yoga Gen 3(AMD)21BB002AEE ThinkPad L13 Gen 3(AMD)-21B9002BCX ThinkPad L13 Yoga Gen 4(Intel)21FJ0006MS ThinkPad L13 Yoga Gen 3(AMD)21BB001VZA ThinkPad L13 Yoga Gen 3(AMD)21BB000RTX ThinkPad L13 Gen 3(Intel)-21B30013ZA ThinkPad L13 Gen 3(Intel)-21B3000MMB ThinkPad L13 Yoga Gen 3(Intel)21B5000XAT ThinkPad L13 Gen 4(Intel)21FG000BYA ThinkPad L13 Gen 4(Intel)21FG002RPE ThinkPad L13 Yoga Gen 3(AMD)21BB000WMD ThinkPad L13 Yoga Gen 3(Intel)21B5003GMH ThinkPad L13 Yoga Gen 3(Intel)21B50041GE ThinkPad L13 Gen 3 21B3006RUE ThinkPad L13 Gen 3(AMD)-21B9002JPB ThinkPad L13 Yoga Gen 4(Intel)21FJ001JGB ThinkPad L13 Yoga Gen 3(AMD)21BB001YGE ThinkPad L13 Yoga Gen 3(AMD)21BB000JGE ThinkPad L13 Gen 3(Intel)-21B3001BML ThinkPad L13 Gen 3(Intel)-21B3000VCY ThinkPad L13 Yoga Gen 3(Intel)21B50025FE ThinkPad L13 Yoga Gen 3(Intel)21B5001EFR ThinkPad L13 Gen 4(Intel)21FG000MGQ ThinkPad L13 Yoga Gen 4(AMD)21FR000AFE ThinkPad L13 Yoga Gen 3(AMD)21BB001HGP ThinkPad L13 Yoga Gen 3(Intel)21B5001QMS ThinkPad L13 Yoga Gen 3(Intel)21B5003HGP ThinkPad L13 Gen 3(AMD)-21B9000HCY ThinkPad L13 Yoga Gen 4(Intel)21FJ0021UE ThinkPad L13 Gen 3(AMD)-21B9000MMH ThinkPad L13 Yoga Gen 3(AMD)21BB0020SP ThinkPad L13 Gen 3(Intel)-21B3000HIU ThinkPad L13 Gen 3(AMD)-21B9002URI ThinkPad L13 Yoga Gen 3(Intel)21B50012BM ThinkPad L13 Gen 4(Intel)21FG0028AD ThinkPad L13 Yoga Gen 3(AMD)21BB0011GB ThinkPad L13 Yoga Gen 3(Intel)21B50046VN ThinkPad L13 Gen 3(Intel)-21B3004AMD ThinkPad L13 Gen 3(AMD)-21B9000CMS ThinkPad L13 Gen 3 21B3004WEQ ThinkPad L13 Gen 3(AMD)-21B9002EZA ThinkPad L13 Yoga Gen 3(AMD)21BB001QGB ThinkPad L13 Yoga Gen 3(AMD)21BB002BMN ThinkPad L13 Gen 3(Intel)-21B3000RHV ThinkPad L13 Gen 3(AMD)-21B9005KFR ThinkPad L13 Yoga Gen 3(Intel)21B5000RED ThinkPad L13 Yoga Gen 4(AMD)21FR0006IX ThinkPad L13 Yoga Gen 3(Intel)21B5003MBM ThinkPad L13 Gen 3(Intel)-21B30053VN ThinkPad L13 Gen 3(AMD)-21B9000TFE ThinkPad L13 Gen 4(AMD)21FN0009IX ThinkPad L13 Gen 3(AMD)-21B9001WCX ThinkPad L13 Gen 3(Intel)-21B4001HAU ThinkPad L13 Gen 3(AMD)-21B9002RIX ThinkPad L13 Yoga Gen 4(AMD)21FR000YRK ThinkPad L13 Yoga Gen 3(AMD)21BB002LMH ThinkPad L13 Gen 3(Intel)-21B30032GP ThinkPad L13 Gen 3(Intel)-21B3001XAD ThinkPad L13 Gen 3(AMD)-21B90005JP ThinkPad L13 Gen 4(AMD)21FN0018GE ThinkPad L13 Yoga Gen 3(Intel)21B5001GEE ThinkPad L13 Yoga Gen 3(AMD)21BB002FIW ThinkPad L13 Gen 3(AMD)-21B9002YMX ThinkPad L13 Yoga Gen 4(Intel)21FJ0003CY ThinkPad L13 Gen 3(Intel)-21B3004RIU

Replaces Part Numbers

5B10W51848 5B10W51849 5B10W51850 5B10W51851 5B11H56336 L21C4PG1 L21D4PG1 L21L4PG1 L21M4PG1 SB10W51949 SB10W51950 SB10W51951 SB10W51952 SB11H56237

Technical Specifications

Voltage15.36V
Amp Hours2850mAh
Capacity2850mAh
Rate43.78Wh
Net Weight182g /6.42 oz
Gross Weight442g /15.59 oz
Approximate Weight442g /15.59 oz
Dimension 253.00 x 101.60 x 4.70mm

Product Highlights

  • Brand: Lenovo
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

ThinkPad Vantage is showing the wrong Wh rating after I swapped the battery — is the new cell actually smaller?

The Wh figure shown in Vantage and in BIOS is pulled from the EEPROM on the battery's BMS board, not measured live from the cells. A new replacement cell ships with EEPROM values that may differ slightly from what Lenovo's software expects, producing a mismatched Wh readout even when the physical cell capacity is correct. This is an EEPROM data difference, not a smaller or weaker cell. Run a full discharge-to-hibernate and an uninterrupted charge to 100% — after one complete learn cycle the reported figure will align with the rated 43.78Wh.

My L13 Gen 3 won't charge past 80% since I replaced the battery — did I get a faulty unit?

Almost certainly not. Lenovo BIOS on the L13 Gen 3 and Gen 4 series includes a firmware-controlled charge threshold that caps charging at 80% by default when Conservation Mode is active in ThinkPad Vantage or Lenovo Energy Management. This setting persists across a battery swap because it is stored in BIOS, not on the cell. Open Lenovo Vantage, go to Power, select Battery Settings, and switch from Conservation Mode to Normal Mode — charging will then proceed to 100%.

The battery percentage jumps around wildly for the first few charge cycles — reads 60% one minute, then drops to 40% two minutes later.

The fuel gauge IC on the BMS board calibrates itself against the charge and discharge behaviour of the specific cell it is paired with. On a brand-new replacement, the IC has no learned data yet, so its state-of-charge estimates are unstable for the first two to three full cycles. We saw the same behaviour on the bench during initial testing — it stabilised after three complete discharge-to-hibernate and full-charge cycles. Let the laptop discharge fully until it hibernates on its own, then charge uninterrupted to 100%, and repeat that sequence twice more to complete calibration.

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