Product specifications for the ThinkPad R52 system.Architecture · Power. Buy BeeCharge Lenovo ThinkPad R52 6 Cell Laptop Battery only for Rs. from Only Genuine Products. 30 Day Replacement Guarantee. Sorry! At the moment we have no memory upgrades in stock for the Lenovo/IBM ThinkPad R52 Series R52 (AFU). Please enter your email address below.