To determine the useful life of a lithium battery, the following factors should be considered:
1. The capacity of the lithium battery: 2500 mAh means the capacity of the lithium battery is 2500. mAh. This means that the lithium battery can provide a current output of 2500 mA under ideal conditions, or 2500 mA in 1 hour. The capacity of lithium batteries is usually measured in milliamp-hours (mAh) or amp-hours (Ah).
2. The power of the water pump: The power of the water pump is 380 watts, which means that the water pump consumes 380 joules of energy per hour. Power is usually measured in watts (W).
3. Lithium Battery Voltage: In order to determine the power consumption, the lithium battery voltage must be known. The voltage of lithium batteries is generally 3.7 volts (V).
Depending on battery capacitylithium battery and the power of the water pump, the usage time can be calculated. First, the power of the water pump must be converted into current:
Current (ampere) = power (watt) / voltage (volt)
380 watts / 3 .7 volts ≈ 102.7 amps
Next, use the following formula to calculate the usage time:
Use time (hours) = lithium battery capacity (mAh) / water pump current (mA)
< p>So, 2500 mAh / 102.7 mAh ≈ 24.34 hoursBased on the calculation above , using a 2500 mAh lithium battery to power a 380 watt water pump can be used for about 24.34 hours. However, it should be noted that this calculation is carried out under ideal conditions and the actual usage time may differ due to certain factors (such as battery quality, usage environment, etc.). Furthermore, this calculation does not take into account the curve de discharge of lithium batteries, and the capacity of lithium batteries may gradually decrease during use. Therefore, additional experimentation and testing may be necessary to determine usage life in actual applications.
In the photo, there are 8 18650 batteries and 2500 mAh lithium batteries How many parallels and series are there How many V?
Ten thousand milliamps.
1. Large capacity: The capacity of the lithium battery is 10000 mAh, which is equivalent to the total capacity of four 2500 mAh lithium batteries.
2. Usage Time: A 10,000 mAh lithium battery has a long usage time. A 2500 mAh lithium battery has a usage life a quarter of that of a 10,000 mAh lithium battery. longer. .
2 series and 4 parallel, 3.7 × 2 = 7.4 V, 2,500 × 4 = 10,000, 7.4 V 10,000 mAh, completely loaded: 8V, 10,000 Bo' one hour = 10 amp-hours. The capacity of the series battery remains unchanged.
Lithium batteries are batteries with lithium metal as the negative electrode, also known as lithium metal batteries. It should be noted that lithium batteries are divided into primary batteries and secondary batteries according to different battery configurations. Early daysLithium batteries are primary batteries, but due to the highly active chemical properties of lithium metal, their processing, storage and use are subject to very high environmental requirements.
Thus, lithium batteries were not widely used after their invention. With the development of microelectronic technology at the end of the 20th century, the number of miniaturized devices has increased day by day, which places ever higher requirements on electrical power.electric. Lithium batteries then entered the stage of large-scale practical use. The most common lithium battery structure currently used by consumers uses lithium metal as the negative electrode, manganese dioxide as the positive electrode, and lithium salt dissolved in an organic solvent as the electrolyte.