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How To Judge The Battery Of EV — High Energy Density Small Lipo Battery

From:CTECHI GROUP Limited     Release time:2018-11-08

Overview:The battery of electric vehicle is the power source of electric vehicle, so the quality of battery is very important for electric vehicle. The following are the ways to distinguish electric car batteries. 1. Look at the new and old batteries. In fact, it is easy to judge. When you get a battery, look at the appearance, whether there are rubbing, scratch marks, and then see whether there are rust on the metal parts of the positive and negative electrodes of the battery.

The battery of electric vehicle is the power source of electric vehicle, so the quality of battery is very important for electric vehicle. The following are the ways to distinguish electric car batteries.


1. Look at the new and old batteries.

In fact, it is easy to judge. When you get a battery, look at the appearance, whether there are rubbing, scratch marks, and then see whether there are rust on the metal parts of the positive and negative electrodes of the battery.


2. Use professional voltage measurement tools to determine whether the battery has internal short circuit (bad battery): after a short ride or a few hours of static after charging, measure the voltage at the charging plug, and the battery is 48 volts or slightly higher than the normal battery (regardless of the old and new). If it can only reach 46 volts or less, it means that one battery has a short circuit (48 volts have four batteries, each of which is connected by 6 batteries of 2 volts in series to 12 volts), indicating that 10 volts is a bad battery.

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3. Judgement of scrap batteries:


1) Just after being charged, if you suddenly accelerate your ride, the needle of the electric meter falls less than half a grid (a small scale), it is a new battery.


2) Just after being charged, if you suddenly accelerate your ride, the needle of the electric meter falls by one grid, it is a semi-new and old battery.


3) If the electrometer needle drops 2-3 squares when it is full of electricity, it will be an old batteries which will be discharged and discharged soon after it is full of electricity for half a month.


4) Just after full electricity, if suddenly accelerated to ride more than four grid is scrap battery. ( Though full power battery is idle for a week, it will also self discharge).


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