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voltage gauge 12v dc
Our voltage gauge can support 12v or 24v dc . Setting parameters: 12V battery , 12V for charging , and about 13% of battery capacity for current . At the initial stage of charging , the voltmeter reading is the current voltage of the battery plus its internal resistance voltage drop , which may be less than 12V , and the current is the set current . In the middle of charging , the voltage increases with the increase of charging time , and the charging current decreases . At the later stage of charging , the so-called "trickle" charging process will be entered , and the voltage will approach the battery charging termination voltage of 14.4V or even exceed this value (due to internal resistance voltage drop) , and the charging current will approach 0 . At this time , the charging can be terminated .
The battery charger generally adopts the imported power module , which is a relatively new electronic circuit intelligent automatic charger . Low loss and high efficiency . It is applicable to the charging of 12V and 24V batteries . The charger also has anti reverse connection function . If it is not connected or the polarity is reversed , there is no voltage output . It can work normally only if it is connected correctly . It also has protection against overvoltage , overcurrent and overheating .
The principle of charging is that only when the voltage of the charger is higher than the voltage of the battery can the charger be charged. The greater the difference in electromotive force between the two , the faster the charging and the greater the charging current . Therefore , the maximum voltage (no-load) of a general 24V charger is 28V , and 60A is the output current capacity of full load .
When you charge, the charger has a load . The voltage at this time is the voltage at which the battery is being charged . The current of 40A is the charging current . This current will become smaller and smaller with the completion of charging . In addition , the charging current is also related to the capacity of the battery . The automobile 12V voltmeter is applicable to most models . The normal battery static voltage is 12.3 to 12.7 volts , and the starting voltage is 10.3 to 10.7 volts.
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