The hp ca06 5200mah battery is a li-ion battery with a 5200mah capacity and 11.1v voltage. it is a 6-cell battery designed for various hp probook models, including the probook 640 g0/g1, 645 g0/g1, 650 g0/g1, and 655 g0/g1. it offers a lifespan of 1.5-3 hours, depending on usage and device type. ompatibility: hp probook 640 g0/g1, 645 g0/g1, 650 g0/g1, and 655 g0/g1 models.