Batianda
Batianda L21M4PD0 L21B4PD0 L21C4PD0 56Wh 3608mAh 2 in 1 accessory
Replacement 56Wh Li-Polymer battery for select Lenovo ThinkBook 13s, 13x and Plus G4 models
- 56 Wh capacity powers Lenovo ThinkBook 13s G4, 13x G2 and Plus G4 models
- 52 V Li-Polymer cell matches original L21M4PD0, L21B4PD0 and L21C4PD0 part numbers
- Smart chip and top-grade circuit boards deliver stable current and low self-discharge
- CE, FCC and RoHS certified for electrical safety
- Rated for about 500 recharge cycles over the battery life
Replacement battery for ThinkBook 13s 13x Plus
This 56 Wh lithium-polymer pack replaces part numbers L21M4PD0, L21B4PD0 and L21C4PD0. It fits Lenovo ThinkBook 13s G4 ARB, ThinkBook 13s G4 IAP, ThinkBook 13x G2 IAP and ThinkBook Plus G4 IRU series notebooks. The cell delivers 15.52 V and 3608 mAh when new.
Upgrade from a worn original pack
Swap the factory battery when runtime has fallen below useful levels or the system reports a capacity warning. The replacement matches the original voltage and connector layout so the laptop recognises it without BIOS work. The jump is worth it when the old pack no longer holds enough charge for a typical work session.
Steady output through a full day
The smart chip regulates current to prevent voltage sag under sustained load such as video playback or compile jobs. Low self-discharge keeps the reserve stable during sleep or short breaks. Rated for about 500 recharge cycles, the pack maintains consistent capacity over months of daily charging.
Highlights
- 56 Wh capacity powers Lenovo ThinkBook 13s G4, 13x G2 and Plus G4 models
- 52 V Li-Polymer cell matches original L21M4PD0, L21B4PD0 and L21C4PD0 part numbers
- Smart chip and top-grade circuit boards deliver stable current and low self-discharge
- CE, FCC and RoHS certified for electrical safety
- Rated for about 500 recharge cycles over the battery life
Specifications
No published specifications for this item yet.
Questions about this item
Will the 15.52 V 56 Wh Li-Polymer pack fit inside my ThinkBook 13s G4 ARB chassis?
Yes — it replaces Lenovo part numbers L21M4PD0, SB11D96866, 5B11D96864, SB11N51761 and 5B11N51729, which are the exact batteries used in that model.
What is the most common mistake when installing this battery?
Forgetting to disconnect the internal battery cable before removing the old pack; always unplug the connector first to avoid a short circuit.
After roughly how many charge cycles should I expect to replace this battery?
The cell is rated for about 500 recharge cycles; plan a replacement once runtime drops noticeably below that point.
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