TM 9-2350-261-20-11. Do batteries resistance change less than 50milliohms/seconds?1. Set test select switches to 73.2. Press and release test button.3. After GO appears, engage starter until OFF appears.4. Is battery internal resistance less than 25 milliohms?1. Batteries are OK.2. If display shows GO, there is a bad connection in thestarter circuit. Check cables and connections to starterandrepeat test.3. If GO is still displayed, then you may have a very poorbattery in the series pair being tested. Test each bat-tery individually.4. If display shows .9.9.9.9., there maybe a bad connec-tion on the battery being tested. Clean and tighten theconnections on the batteries and repeat test.5. If display shows E013 or .9.9.9.9., the batteries beingtested maybe in a discharged state. Checkbatterieselectrolyte level; charge batteries and repeat test.6. If display shows E013 three consecutive times, or- - - -, or .9.9.9.9. after batteries have been charged,replace battery.7. Verify no faults found.GO TO NEXT PAGENOTEIf batteries fail in freezingweather, crank engine forfive seconds and retest.T h i s w i l l w a r mthebatteries slightly.1. Check batteries electrolyte2. Clean battery terminals.3. Check batteries specificgravity.4. Charge batteries, if neces-5. Repeat test on this battery.6. If batteries have beencharged and batteries resis-tance change still exceedslimits, replace battery.7. Verify no faults found.Change 13-267
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