4.1.1 Informações da bateria

4 Electrical 4.1 Battery and Cables 4.1.1 Battery Information If a battery is disconnected, there is no requirement to reprogram the vehicle; the vehicle retains its ‘normal’ power management setting and remembers exactly what its previous configuration was (although the central locking latches may cycle if one of these was opened manually in the intervening period). With the radio, all of the settings are retained, but the key code needs to be entered to restore functionality. The clock will need resetting. Battery Voltage Requirements and Testing All voltages are to be measured with an accuracy of: + /– 5% of values published. To maximize battery life, at the time of arrival at the vehicle converter, all batteries must have a minimum Open Circuit Voltage (OCV) of not less than 12.75 volts. When the battery is installed and connected to the vehicle's electrical system with no load, the Closed Circuit Voltage (CCV) must not be less than 12.65 volts. When the vehicle is released to the customer, the CCV must not be less than 12.50 volts. Surface Charge Dissipation Prior to carrying out manual voltage checks, it is necessary to establish that the battery voltage is stable and free from surface charges, that could be present due to certain engine run conditions making the voltage readings unreliable and inaccurate. To ensure surface charges are not present the following actions are recommended: 1. Turn the ignition key to position II and switch on the headlamps (main beam) and if fitted, the heated front window, rear window demister and the heater blower motor (on position II). Leave the vehicle in this condition for at least 1 minute to dissipate what ever surface charge is present in the battery. 2. Turn the ignition key to position 0 and switch off the loads; headlamps, heated windshield/rear window demister and heater blower motor. Leave the vehicle in this condition for at least 5 minutes, before taking a battery voltage reading. FordRanger 2011.5 Delayed Vehicles Vehicles held at the vehicle convertor premises and not in use for longer than 4 days, should have the battery's negative cable disconnected. Before shipping to the customer, the battery negative cable must be re-connected and the voltage re-checked. The voltage should be not less than 12.5 volts. Battery Charging Procedure 1. Cold batteries will not readily accept a charge. Therefore, batteries should be allowed to warm up to approximately 5°C (41°F) before charging. This may require four to eight hours at room temperature depending on the initial temperature and battery size. 2. A battery which has been completely discharged may be slow to accept a charge initially, and in some cases may not accept a charge at the normal charger setting. When batteries are in this condition, charging can be started by use of the dead battery switch on chargers that have this facility equipped. 3. To determine whether a battery is accepting a charge, follow the manufacturers instructions for the charger and the dead battery switch. If the switch is the spring-loaded type, it should be held in the ON position for up to three minutes. 4. After releasing the dead battery switch and with the charger still on, measure the battery voltage. If it shows 12 volts or higher, the battery is accepting a charge and is capable of being recharged. However, it may require up to two hours of charging, with batteries colder than 5°C (41°F) before the charge rate is high enough to show a charge on a ammeter. It has been found that all non-damaged batteries can be charged by this procedure. If a battery cannot be charged by this procedure, a new one should be installed. 5. A rapid recharge procedure has been developed for recharging batteries that have passed the load test and only need a recharge. This can be due to in-service no-start battery failures (vehicle will not crank due to low battery state of charge) or battery discharged in vehicle due to key-off loads. 6. With the cables then disconnected, the battery can be rapidly recharged by using either of the following methods: • Carry out a two hour charge using 20A constant current (manual setting on charger). • Carry out a two hour charge using a constant potential (automatic setting on charger). Date of Publication: 05/2011