The Lenovo 5B10W67338 is a rechargeable lithium-ion battery pack, identified in Lenovo documentation as model L17C2PB2. It powers equipment designed for this specific pack, making its part number useful when checking a replacement.
Its rated voltage is 7.7 V and its energy rating is 39 Wh. Lenovo lists its weight as 164 g. The pack has a plastic casing, protection circuit boards, safety devices and interface terminals.
The model reference and electrical ratings help distinguish this battery from other Lenovo two-cell packs with different part numbers or specifications.