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J 42000 Battery Tester. See Special Tools. For best results, use an automatic taper-rate battery charger with a voltage capability of 16 The charging area should be well ventilated. Do not charge a battery that appears to be frozen. Allow the battery to warm to room Battery State of Charge The maintenance-free batteries SOC is estimated by reading the voltage of the battery across the 1. Be sure all electrical loads are turned OFF. 2. Determine whether the battery has been used in a vehicle or charged within the past 12 hours. If the answer is no, the terminal voltage will be stabilized and no action is necessary If the answer is yes, terminal voltage will not be stabilized and you should wait 12 3. Estimate the battery temperature by determining the average temperature to which the battery has been exposed for the past 12 hours. 4. Measure the battery voltage at the battery terminals. Refer to the following table to determine the SOC according to the estimated battery temperature: IMPORTANT: Using voltage to determine the batteries State Of Charge (SOC) is only accurate after the battery has been at rest for 24 hours. This IMPORTANT: The table is accurate to 10 percent only after the battery has been at rest for 12 hours.
2007 Hummer H3 2007 ENGINE Engine Electrical - H3
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