TM 10-3930-669-20 7-47.  BATTERY REPLACEMENT (CONT). a. Removal. WARNING • Battery acid (electrolyte) is extremely harmful.  Always wear safety goggles and  rubber  gloves,  and  do  not  smoke  when  performing  maintenance  on batteries.  Injury will result if acid contacts skin or eyes.  Wear rubber apron to prevent clothing being damaged. • Remove   all   jewelry   such   as   rings,   dog   tags,   bracelets,   etc.      If   jewelry contacts  battery  terminal,  a  direct  short  may  result  in  instant  heating  of tools, damage to equipment, and injury or death to personnel. NOTE Tag and mark all wires prior to removal. (1)     Lift  black  rubber  terminal  cover  (1)  and  loosen  nut  (2)  until  negative  cable  (3)  can  be  removed  from negative battery terminal (4). (2)     Lift black rubber terminal cover (5)  and loosen nut (6) until negative side of cable (7) can be removed from negative battery terminal (8). 7-106