Crown Battery 12-85S-13

- It can be difficult to decide if a battery is worth repairing or if it should be replaced. When you have to make this decision, the most important things to consider are the battery's age, cycle life and service history

- If the battery is only 1 to 2 years old (300-600 cycles), if it hasn't been severely overcharged or over discharged and if the repair costs don't exceed 25% of the replacement costs, then it should probably be repaired

- On the other hand, if a battery has been on the job 3 or more years (900 or more cycles) or has extensive damage, requiring repairs totaling 25% or more of the replacement cost, it should probably be replaced

- CAUTION: ONLY EXPERIENCED PERSONNEL SHOULD ATTEMPT BATTERY REPAIRS!

- If you don't have an experienced battery repair person, send the battery to your nearest authorized Crown Battery repair facility or arrange to have a Crown Battery service technician perform the repairs at your plant site

- BEFORE PERFORMING ANY REPAIRS, REMOVE THE BATTERY FROM THE LIFT TRUCK. ALWAYS WEAR SAFETY GLASSES AND A FACE SHIELD WHEN WORKING ON OR NEAR BATTERIES

- For more information on battery repairs please see Crown Battery's Battery Repair Guide;

This is the complete recharge of a battery after it has been fully or partially discharged during normal operation. In general, a cycle charge is based on an 8‐hour charging cycles, but can be extended, depending on need

A freshening charge is used to bring a battery to a fully charged condition before it is placed in service or when it has been standing idle for a short period. It takes about three hours at the finish charge rate (3‐6 amperes per 100‐ampere hours of the battery’s 6‐hour capacity rating)

When a battery is placed on charge, the opposite action of battery discharging takes place; the sulfate in the active material of the plates is driven back into the electrolyte

This reduces the sulfate in the plates and increases the specific gravity of the electrolyte and the electrochemical process continues until the on-charge cell voltages reach 2.50 to 2.70 volts per cell, depending on the type of charging equipment used

Finish rate or "normal" rate is that current which can be used safely any time charging is required and which can be continued after the completion of the charge without causing excessive gassing or high temperature resulting from overcharge. The finish rate is shown on the nameplate of Crown Batteries

Generally, the finish rate is 3.5 amperes per 100 hours of the battery's 6-hour rated capacity. A partially or completely discharged battery can safely handle currents much higher than the finish rate, but as it approaches full charge, whatever charging rate is used must be reduced to the finish rate

Warning: This inspection requires trained personnel with PPE!

Is the battery still in the vehicle?

If the battery is still in the vehicle, turn off the power switch and unplug the battery from the vehicle

Allow the battery to remain on open circuit (do not charge or discharge) for 30 minutes or longer

Fill in the Crown Battery Inspection Report. Include battery type, serial number, etc.

Read and record the specific gravity and open circuit voltage for all cells of the battery

Read and record the pilot cell temperature

Record the temperature-corrected specific gravity readings. Use a temperature correction thermometer. Use the pilot cell temperature for the temperature correction of all the cells.

It is not necessary to read the temperature of every cell unless the temperature difference between center cells and outside cells of the battery is 12°F or more

Warning: Battery replacement should be done by trained personnel only!

Old battery removed successfully?

New battery installed successfully?

Enter the number of charge cycles of the new battery

Enter the expected replacement date for the new battery

Sign off on the battery replacement

Warning: This maintenance check requires trained personnel with PPE!

Proper electrolyte level maintained?

Charger controls and instruments checked and calibrated?

Battery discharged over 80% state of charge?