What is the full charge voltage of the 12VSigmasTek battery
12 volt battery charging voltage:12.6V for 3 sections and 16.8V for 4 series.
[Specific Introduction]:
1.Floating charge.Refers to charging while working online.This method is often used in backup power supply situations.Below 12 volts,it cannot be charged,and being too high affects the operation of the circuit.So,when the float charging is working,the voltage is 13.8 volts.
2.Cyclic charging.It refers to the complete charging of the battery to restore its capacity.When fully charged,the charger is continuously turned on for measurement,usually around 14.5 volts,with a maximum of no more than 14.9 volts.After disconnecting the charger for 24 hours,it is generally around 13 volts to 13.5 volts.About 12.8 to 12.9 volts after a week.The specific voltage values of different batteries vary.
The typical lithium battery unit is 3.7v,with a full charge voltage of 4.2v.After being connected in series,the nominal voltage is only 7.4v,11.1v,14.8v...The corresponding full charge voltage(i.e.the no-load output voltage of the charger)is 8.4v,12.6v,16.8v...It cannot be an integer of 12v,just like every 2v of a lead-acid battery,the full charge voltage is 2.4v,and only the nominal 6v,12v,24V The full charge voltage(also the output voltage of the charger)is 7.2V,14.4V,28.8V respectively...I don't know what kind of lithium battery you are
The open circuit voltage of lead-acid power batteries used in electric vehicles is about 13.3V at full charge,and the starting battery used in automobiles is about 12.8V at full charge.
The open circuit voltage of lead-acid batteries varies depending on the type.The above voltage values are measured when fully charged and left standing for about 12 hours.
12V lithium batteries are connected in series with 3 or 4 lithium batteries.A combined battery pack,whose capacity is determined by the capacity of a single cell or the capacity of batteries connected in parallel,is a safe and environmentally friendly new type of battery.
12V batteries:According to material classification,they can be divided into:12V lithium batteries,12V lead-acid batteries,12V nickel hydrogen nickel cadmium batteries,and 12V alkaline batteries.12 lithium batteries are a combination of three 3.7V lithium batteries in series.After a single lithium battery is fully charged,the voltage is 4.2V,usually also known as 4V.The voltage of the series batteries is added together,which is 4V/battery*3 batteries and=12V,which is what we call a 12V lithium battery.The combination method is shown in the following figure
Combination method:ICR18500-3S2P
Nominal voltage:11.1V
Discharge voltage:11.1V-12.6V
The conventional discharge current is 0-2A,and the large capacity is 3-4A
Nominal capacity:in MahA,available in various sizes
Standard continuous discharge current:0.2C
Maximum continuous discharge current:1C
Working temperature:Charging:0-45℃
Discharge:-20~60℃
Product size:MAX39*56.6*99mm
Finished product internal resistance:≤280mΩ
Standard weight:
Protection board:IC-S8254AAJ+MOS-AO4409
Lead model:JST-VHR-2P forward plug UL1007/24#wire,with a length of 100mm
Protection parameters:
Overcharge protection voltage/4.35±0.025V per string
Overdischarge protection voltage 2.4±0.08V
Overcurrent value:10-25A
Specification parameters of 12V lithium battery:
Voltage:12V
Battery capacity:There is no standard capacity,which is determined based on the specific requirements of the consumer or equipment.The general capacity is 2200ma/h,5AH,10Ah,etc.Some electric vehicles can have a capacity of up to 20AH or 50AH.The more batteries are connected in parallel,the larger the capacity.According to the physics formula:in a parallel circuit:Itotal=I1+I2+I3[1]
Volume:The volume of a 12V lithium battery needs to be determined based on its capacity,and there is no unified specification.The larger the battery capacity,the larger the volume
Weight:Many devices now require lithium batteries with larger capacity and lighter weight,such as electric vehicles.Previously,lead-acid batteries were used,but now many electric vehicles have become lithium batteries because of their large capacity,light weight,and small size.
Charging and discharging current:The charging and discharging current of a lithium battery is determined based on the power of the device,and the electric power formula is P=UI[1].On the basis of constant voltage,the higher the power of the device,the greater the current required to be output.
12V lithium battery usage:electric vehicles,power tools,laptops,mobile DVDs,UPS,GPS,medical equipment,etc
The 12V battery is a 2VX6 grid lead-acid battery!
The single cell full charge voltage of this type of battery can reach 2.2V-2,4V!The total no-load voltage can reach 13.2V-14.4V when fully charged with 12V!
That means the charging voltage should be 14-16V!
It also depends on the actual situation!If the capacity of the battery is much lower than the power of the charger!The charging voltage can be lower!On the contrary,it will be higher!
Overall,one condition must be met!That is,the charging current should not exceed 1/10 of the battery ampere hour!Do not lower than 1/5!
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