The CoreParts MBXLE-BA0436 is a lithium-ion replacement battery for Lenovo laptops. It is intended for ThinkPad X1 Carbon Gen 9 and Gen 10, and ThinkPad X1 Yoga Gen 6, so check your laptop model before choosing it.
With 15.4 V, 3200 mAh capacity and 49.28 Wh of stored energy, it provides a replacement power source for those models. Its listed OEM references are L20C4P71, L20D4P71, L20L4P71 and L20M4P71.
Package contents: one battery.