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How to Judge the Battery — Durable Cylindrical Lithium Sulfur Dioxide 2.9V Cells

From:CTECHI GROUP Limited     Release time:2018-11-30

Overview:How to check out the battery? First, we charge the electric vehicle, first put it in place for hours or ride for a while, and measure its voltage at the charging plug. Whether new or old batteries, if 48V or slightly higher is the normal battery; if only up to 46v or less, it means that a battery has a short circuit; if 10V shows that the whole battery group is bad.

Reference method of measuring battery of electric vehicle with universal meter:


1. Disconnect the battery and measure the battery voltage. If the battery voltage is significantly lower than the nominal voltage, please charge it with a charger first.


2. If the voltage of the no-load battery is normal and the load is added, the door of the electric vehicle can be opened, the rear wheel can be overhead, a certain resistance is added to the rear wheel, and the acceleration switch can be twisted.


3. If the battery voltage is measured again at this time, if it is found that the battery voltage decreases, but not much, and the vehicle accelerates strongly, the battery is basically intact.


4. If the battery voltage drops sharply at this time, seriously below the nominal lower limit voltage, and the acceleration of the vehicle is weak, then the battery has aged and the capacity is insufficient.


The above methods can only be roughly judged, and accurate judgement needs to be measured by a battery capacity meter.


Multimeter can only measure the battery voltage, but can not accurately measure the battery capacity and quality.


If it is an emergency, you can refer to the following methods:


1. Disconnect the battery and measure the battery voltage. If the battery voltage is significantly lower than the nominal voltage, please charge it with a charger first.


2. If the voltage of the no-load battery is normal and the load is added, the door of the electric vehicle can be opened, the rear wheel can be overhead, a certain resistance is added to the rear wheel, and the acceleration switch can be twisted.


3. If the battery voltage is measured again at this time, if it is found that the battery voltage decreases, but not much, and the vehicle accelerates strongly, the battery is basically intact.


4. If the battery voltage drops sharply at this time, seriously below the nominal lower limit voltage, and the acceleration of the vehicle is weak, then the battery has aged and the capacity is insufficient.

Durable Primary Cylindrical Lithium Thionyl Chloride Cell

How to Judge Batteries


How to check out the battery? First, we charge the electric vehicle, first put it in place for hours or ride for a while, and measure its voltage at the charging plug. Whether new or old batteries, if 48V or slightly higher is the normal battery; if only up to 46v or less, it means that a battery has a short circuit; if 10V shows that the whole battery group is bad.


Pre-test whether the total voltage of battery pack is greater than 48V


Measure the voltage of each battery separately and find out that the battery voltage is less than 13V.


Put up the car and measure the battery whose voltage is less than 13V. At the same time, turn the handle to the maximum. If the voltage is less than 12V, we need to replace a single battery.


The simplest is to use the resistance wire of the electric furnace to clamp the positive and negative poles of the battery after series connection and then measure the voltage of each battery with a multimeter. The simplest is to use a special instrument when conditions permit. You can see that the voltage difference of each battery is generally the highest and lowest voltage difference of 6v, and you need to replace it.


When the electricity is about to run out, put the rear wheel of the car overhead (for ease of measurement), open the battery bin, and start the car (overhead, the car will not bubble away, is idling). At the same time, use a multimeter to measure the battery voltage, if which battery is significantly lower than 12V or significantly lower than other batteries, say It is clear that the battery is broken, and if all three are the same and normal, and you are sure that one of your batteries is broken, it means that your battery discharge is not complete enough, you should put some more electricity after toilet capacity.


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We CTECHI Group is a leading durable Primary cylindrical lithium thionyl chloride cell, durable cylindrical Lithium Sulfur Dioxide 2.9V cells, solid-state lithium polymer batteries, 3.6 volt d cell lithium battery exporter and manufacturer in China, we are not only focus on provide single cell but provide battery assembly and do OEM service for customers, CTECHI has captured 80 percent of overseas markets in the past 16 years with more than 2000 reliable customers in our customer management system, which has been being one of the leading enterprises with the most complete category in China's battery industry. If you have any request or want to purchase 12v 200ah lifepo4 battery, please contact us. We will provide battery solution and quotation for you immediately.    


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