The ampere-hour is the product of the discharge current (amps A) and the discharge time (hours H). 12 amp hours means that a current of 12 amps can discharge for 1 hour. The poster must also provide voltage. The formula is voltage V*amp hour AH*3600 joules (J) = power W. It should be noted that the above is only an estimate. As the depth of discharge changes, the battery voltage will change, but there is a certain range. For example, lithium batteries commonly used in cell phones are generally 3.0-4.2V, so. the average value is 3.7 V for calculation.
How many ah is 1wh?
It depends on the number of volts of the voltage. If it is 12 V, according to the pure DC circuit: P=UI P=I?R P. =U?/R While waiting for the calculation formula, theoretically 12*100=1200 watts, or 1.2 degrees. In fact, battery discharge has a loss, which depends on energy efficiencydrums. The discharge efficiency of lithium batteries is relatively high. , and the discharge efficiency of lead-acid batteries is lower.
It cannot be converted directly. Wh is the quantity of electricity, which is a quantity directly proportional to voltage, current and time. MAh is generally used as a battery charge and discharge indicator. It is an indicator proportional to the current and duration of charging (discharging) of the battery. To make it comparable or convertible to Wh, the battery voltage must also be known.
For example, if it is 5 V, then we can say that the relationship between the discharge time and the current of 1 Wh of electricity at a voltage of 5 V is 1 Wh/5V = 1VAh/5V = 0.2Ah = 200mAh, that is, with a discharge current of 100mA, it can be used for 20 hours.
Detailed information:
Ampere-hour is another way of expressing electricity.
A coulomb of electricity is a small and impractical amount to apply in many locations. The most commonly used unit is the ampere-hour. An amp-hour of electricity is the amount of electricity obtained by flowing one amp of electricity continuously for one hour. Ampere hours are commonly used in batteries, electroplating, and other electrochemical systems.
References:
Baidu Encyclopedia-WhReferences:
p>Baidu-Ampere Hour Encyclopedia