As for electric vehicle battery voltage measurement, how do you measure the battery voltage?

Using a multimeter red pens to connect anode and black pens for cathode

Gear in 50 V, dc 12 V battery put after the power is 10.5 V, after full is 14.4 V, 24 V battery is after is 21 V and 28.8 V.More than or less than normal.

The storage battery, chemical energy is converted into electrical energy device called chemical battery, commonly referred to as "for the battery.After discharge, can make the internal active substances in charging way - to store the electric energy to chemical energy regeneration;When need to discharge to convert chemical energy to electrical energy again.Call this type of battery storage battery (storage battery), also known as the secondary battery.

So-called is chemical energy storage battery, a necessary release electricity an electrochemical device.

Normal battery cycles of 500 ~ 1000 times.The quality of the charger to choose good, had better choose to have discharge function.Found at the same time, using electric owed should charge in time, and adequate electricity, do not be depth also reuse after discharge.Environmental temperature down to about 5 ° after, the discharge capacity will decline, including when charging will also have certain requirements for temperature.

This is a different manufacturers have different connection, as long as you have been in the original car charger to charge no problem.But to replace the charger when it is important to note that the new charger output polarity, connection must be consistent with the original charger, otherwise it will damage the charger.You can solve the problem: the open the battery compartment to put the batteries in electric cars and twist the measuring cell voltage on pile head, and then test the socket under voltage, if the same inside the battery compartment no poor contact.If the battery voltage is significantly greater than the socket voltage is to pay attention to find where there is the phenomenon of poor contact, pay special attention to the fuse.If there are no poor contact but low voltage, plug in the charger, battery voltage and quickly rose to about 56 v.The charger is a green light.This may be a battery.(screw regulated, there are about 48 v battery voltage, but the car show without electricity, motor weakness, may be the battery box socket to the part of the car is the phenomenon of poor contact)

The zero line is to point to what you say?I have never seen a direct current is zero line ah, listen to what you say may be battery cathode grounding, amount of battery when you can use a multimeter red pens and a connect battery anode black pens and end connect battery cathode, normal should be 48 v.You should choose a multimeter measurement of dc gear. The battery of electric bicycle is general by three pieces of 12 v10ah or a larger battery series power supply, can't you use a multimeter measurement generally good or bad, if the battery is broken have not necessarily have corresponding current, voltage discharge rate can be used to measure good or bad.If the battery is good, should consider whether damage of speed governor.

Test battery open circuit voltage and the load voltage, found that the no-load voltage of 10.5 V, load voltage 3.5 V, say how the battery is broken.

Pry the cover, remove the plastic cap.

With integrated detector to detect which have a problem.Negative found 5, 6, 7 tables, 5, 6, damaged.

With shell opener abort column glue, use the lead welding machine take the polar column.

With open shell machine to open the cover.

With the single detector to detect each of no-load and load voltage, found 1-5, light load 1.2 V, 2.2 V in the normal range, load only 6 g light 2 V 0 V. 6 cell damage.

With side cutting pliers cut across the bridge and remove the damaged plate, and then from other battery out a good plate change

Good welding bridge, add fluid charging, charging cannot too much, just can see the water line, testing is complete.

Tools/materials multimeter a step/method

Measuring the battery voltage available pointer multimeter or several yu multimeter measurement:

Methods: 1. Choose good multimeter range (1.5 V and 3 V, 6 V, 9 V);

2. The red pens and the anode of the battery, black pens and connect the cathode of the battery.

To measure the battery's current still use pointer multimeter or digital multimeter to measure:

Methods: 1. Choose good multimeter mileage (100 ma and 500 ma, 1 a, 5 a);

2. The multimeter in series in the circuit;

3. Red pens and let the current flow, black pens and made the current outflow;

4.In the circuit must be connected to use electric equipment, must not take current meter directly at opposite ends of the battery.Considerations must be connected to use electric equipment, can't take current meter directly at opposite ends of the battery

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