So how come to group? Here, a battery matching program is introduced here:
First, measure the voltage of each battery, the correct measurement of the voltage is to measure the battery. After 3 hours, it is measured. It is also possible to determine if there is a fully short-circuit battery - the measurement voltage is less than 12 V after stationostation is a fully short-circuit battery.
The grouse is a vital step! The method of the grouping can be used for the value of the voltage or capacity of each battery in a set of batteries. A set of 3 or 4 battery voltages is less than or equal to 0.03V. Group, level excellent. A group of 3 or 4 battery voltages is equipped with a set of levels, levels in a set of 3 or 4 batteries in 0.05--0.1V. The group, the level is poor. Note: The above-mentioned voltage is full of voltage values after an electricity! It can be seen that the battery voltage difference in a group is mostly the difference in 0.1V. If the voltage is too much, it cannot be equipped. Group.
The above is to group by measuring the voltage. If the value measured is not comprehensive, it can also be grouped by measuring the capacity difference between each battery. Capacity difference refers to a difference between the capacity between 2 batteries. The calculation method is that the battery A and the battery B have a capacity difference = (a-b) / b, of course, the capacity of A is higher than B. The capacity difference between 2 batteries