JandB Golf Cart Parts

Battery performance involves a three-point procedure:

1. Visual Inspection:  Check battery age or length of service if available.  Inspect battery for damage - when physical damage to the battery container or terminals is present, replace the battery. If none, check the battery’s cell electrolyte levels. Fluid levels should be above the top of plates in all cells, and no higher than the top of the fluid level indicator:  If the battery is sufficiently filled with electrolyte – proceed to step 2 If the top of the battery’s plates are not covered with liquid, add water, replace vent caps and place the battery on charge. Be sure no open flame or spark is near while the battery’s vent caps are removed from the battery.
2. Specific Gravity Inspection:  Hydrometer reading of all cells should be at least 1.235 and show less than 50 points difference between high and low. More than 50 points difference: replace the battery. Less than 50 points, but some cells read less than 1.235: recharge the battery. Replace the vent caps during recharge. Charge the battery using a properly matched automatic  charger until all cells measure a specific gravity of 1.275 to 1.280. If charging  won’t bring up specific gravity, replace the battery.
3. The Power Behind Performance Open Circuit Voltage and Electrical Load Test:  Battery open circuit voltage is an effective indication of battery state of charge.  Determine the approximate state of charge from the following chart. Electrical load testing is an effective troubleshooting technique for identifying batteries with internal defects – but it is not an approved method for measuring deep cycle battery capacity. For this reason Crown Battery recognizes load test results as useful only for identifying batteries having  bad cell conditions. Batteries with less than 75% state of charge should be charged before an electrical load test is applied to the battery. When load testing batteries, remove all battery cables, disconnecting the negative cables first. Make  sure the battery terminals are free of corrosion and dirt. For batteries having stainless threaded stud terminals, attach a lead charging 
post to the threaded stud terminal before testing. Using a carbon pile load tester, apply a 50 to 75 ampere load for 15 seconds; remove the load. Refer to the chart at the left to determine the minimum passing voltage.