TM  10-3930-643-20 ELECTRICAL  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 5-1. Battery    Troubleshooting. MALFUNCTION TEST OR INSPECTION CORRECTIVE   ACTION a. BATTERY   DISCHARGING. Step  1. Check   for   dirty   or   loose   connections. Clean   and   tighten   connections   as   necessary. Step   2. Check   for   short   circuits,   refer   to   Short   Circuit   Testing   in paragraph   2-13.e. If   the   battery   cables   are   damaged   or   defective,   replace,   refer   to paragraph   5-47. Step  3. Check   the   alternator   connections. If   the   alternator   connections   are   damaged   or   defective, s e r v i c e, refer   to   paragraph   2-13. Step  4. Check   the   alternator. If   the   alternator   is   damaged   or   defective, replace, r e f e r    t o paragraph   5-9. b. BATTERY  OVERHEATING. Test   the   battery   for   high   charging   rate,   refer   to   Testing   procedures   in paragraph   5-48. If   the   battery   is   overcharging,   replace,   refer   to   paragraph   5-48. 5-3