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6. Faults

Should faults be detected in the battery or the charging device, contact your servicing dealer immediately. Keeping records of all

measured data will simplify fault detection and corrective action. A service contract with your servicing Discover® dealer will help to

detect faults in time.

7. Testing

Check that the battery is fully charged, before testing new batteries. Ensure that a sufficient commissioning charge has been applied

and the battery is fully charged.

PERFORMING CAPACITY TEST

Necessary tools:

• Suitable test load

• Voltmeter

• Stopwatch

• Battery logbook to record measurements

1. Fully charge the battery system

2. Make sure that all connections are clean, tightened and non-corroded

3. Interrupt the connection between the battery system, the charger and all consumers

4. Prepare an adjustable load that you can connect to the battery system

5. Prepare the voltmeter to test the voltage of the battery cells and battery system

6. Connect the test load and the voltmeter. The load must correspond to the nominal capacity test rate.

Simultaneously start a time measurement.

Check connectors for excessive heating

8. Keep the test load current constant and measure the voltage of the battery system in regular time intervals.

9. Log the discharge time once the permitted minimum voltage is reached

10. Calculate the capacity of the battery system using following formula:

11. Reconnect the battery system as originally connected and perform a fully charge

The recommended practice is to replace the battery if its capacity is below 80%. Following the test, it is necessary to review

the battery sizing to determine whether the remaining capacity is sufficient for the battery to perform the intended function.

Additional characteristics such as abnormality of cell temperature and cell voltage are often requiring complete battery or cell

replacements. Individual cell voltages should not deviate more than 0.15 VPC from the average voltage of all the cells in the

group.

8. Storage

If lead acid batteries are to be taken out of operation for extended periods of time, they must be placed fully charged in a dry,

frost-free room. To avoid damage, perform periodical balance charging or permanent float charging.

9. Transport

Be sure that all cells are protected against short-circuit. Be sure to document and transport all cells or batteries according to

local department of transportation rules and regulations.

10. Recycling

Discover's lead acid batteries are recyclable products. All Discover Factory Warehouses and servicing dealers are qualified to

accept and handle all used lead acid batteries. Contact Discover

Capacity (% at 20°C) = T

actual discharge time until the permitted minimum voltage is reached

theoretical discharge time until the permitted minimum voltage is reached

x 100

or your servicing dealer for details.

discoverbattery.com