Cordless milwaukee sawzall runs but keeps stopping

This saw all is running but but keeps slowing down and stopping. check inside for broke wires and found the rotor was rubbing. the problem is the battery contacts. they only just contact the battery, meaning they ware out fast. #toolrepair #repairs #powertool #makita #tools #toolrepairs ##dewalt #bosch #fix #milwaukee #sawzall #milwaukeetools