12V 4.0Ah Li ion BAT420 Replacement Battery for Bosch BAT411 BAT412 BAT413 BAT414 10.8 Volt Max Battery Cordless Power Tools L50|Rechargeable Batteries| - AliExpress
Bosch BAT414 12-Volt Max Lithium-Ion 2.0Ah High Capacity Battery , Black - Battery Testers - Amazon.com