Product details
The L18C4PF3 (also known as L18M4PF3, L18C4PF4, etc.) is not an HP battery—it’s a Lenovo OEM pack used in various IdeaPad, Flex, C340, and S540 series laptops. Here’s what it’s compatible with:
Compatible Lenovo Models
This 4‑cell, 15.36 V (~45 Wh) Li‑Ion battery fits:
- IdeaPad S540‑14 (API, IWL, IML variants; including touch-screen models)
- IdeaPad C340‑14 (API, IWL, IML; both clamshell and convertible)
- Flex 14 (IML, IWL, API)
- Xiaoxin Air 14 (2019)
Examples include:
IdeaPad S540‑14IML, S540‑14IWL; C340‑14API, C340‑14IWL; Flex‑14IML/IWL/API series
Battery Specs & OEM Numbers
- Voltage: 15.36 V
- Capacity: ~45 Wh (≈2964 mAh)
- Cell configuration: 4‑cell Li‑Polymer
- ** OEM part numbers:** L18C4PF3, L18M4PF3, L18C4PF4, L18M4PF4, plus 5B10T09077, 5B10W67417, etc
✅ TL;DR
The L18C4PF3 battery is not used in HP devices. It is designed for Lenovo IdeaPad S540-14, C340-14, Flex-14, and Xiaoxin Air 14 (2019) series laptops. If your device falls within one of these Lenovo models and matches one of the OEM numbers, this battery is the right fit—but it will not work for HP machines.
