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Lenovo L18M4PC0 Replacement Battery vs Lenovo L21M4P71 Replacement Battery: Comparison
What is the difference between L18M4PC0 Replacement Battery and L21M4P71 Replacement Battery?
There is no decisive spec gap here. Capacity wh splits them by a margin most buyers will never feel, L18M4PC0 Replacement Battery 52 Wh against L21M4P71 Replacement Battery 52.5 Wh. The battery model code figures are near enough to ignore, L18M4PC0 on the L18M4PC0 Replacement Battery versus L21M4P71 on the L21M4P71 Replacement Battery. They differ on nominal voltage too, 7.72 V on the L18M4PC0 Replacement Battery versus 15.48 V on the L21M4P71 Replacement Battery. There is a split on compatible models as well, Lenovo IdeaPad S940-14IIL, IdeaPad S940-14IWL, Yoga S940-14IIL, Yoga S940-14IWL on the L18M4PC0 Replacement Battery versus Lenovo ThinkPad P14s Gen 5 AMD on the L21M4P71 Replacement Battery.
L18M4PC0 Replacement Battery vs L21M4P71 Replacement Battery: which one fits your build
The L18M4PC0 Replacement Battery is the one to take for IdeaPad S940 and Yoga S940 14-inch owners. Avoid it for anyone who needs a confirmed OEM-label capacity figure rather than a seller estimate. The L21M4P71 Replacement Battery suits ThinkPad P14s Gen 5 AMD owners, though it is not built for anyone needing a generation-specific confirmed capacity.
Where the two are identical
Where they agree, they agree completely, capacity basis, expected firmware state and shipping classification included, so the decision does not turn on any of those.
Specs and benchmarks
Brand
- Lenovo L18M4PC0 Replacement Battery
- Lenovo
- Lenovo L21M4P71 Replacement Battery
- Lenovo
Battery Model Code
- Lenovo L18M4PC0 Replacement Battery
- L18M4PC0
- Lenovo L21M4P71 Replacement Battery
- L21M4P71Best
Nominal Voltage
- Lenovo L18M4PC0 Replacement Battery
- 7.72 V
- Lenovo L21M4P71 Replacement Battery
- 15.48 V
Capacity Wh
- Lenovo L18M4PC0 Replacement Battery
- 52 Wh-1%
- Lenovo L21M4P71 Replacement Battery
- 52.5 WhBest
Capacity Basis
- Lenovo L18M4PC0 Replacement Battery
- Seller Claim
- Lenovo L21M4P71 Replacement Battery
- Seller Claim
Expected Firmware State
- Lenovo L18M4PC0 Replacement Battery
- unknown
- Lenovo L21M4P71 Replacement Battery
- unknown
Shipping Classification
- Lenovo L18M4PC0 Replacement Battery
- UN3481
- Lenovo L21M4P71 Replacement Battery
- UN3481
Compatible Models
- Lenovo L18M4PC0 Replacement Battery
- Lenovo IdeaPad S940-14IIL, IdeaPad S940-14IWL, Yoga S940-14IIL, Yoga S940-14IWL
- Lenovo L21M4P71 Replacement Battery
- Lenovo ThinkPad P14s Gen 5 AMD (Ryzen 7 PRO 8840HS, 32GB, 1TB)
Which one should you pick?
Choose Lenovo L18M4PC0 Replacement Battery if you already have it on hand or find it at a lower price.
Choose Lenovo L21M4P71 Replacement Battery if you want the higher capacity wh (52.5 Wh vs 52 Wh).



