In modern life, batteries, as portable power supplies, play an indispensable role.No. 5 alkaline batteryWith its stable performance and wide application, it has become the preferred power supply for many electronic devices.No. 5 alkaline battery, also known as AA battery, is a common dry battery, which uses alkaline potassium hydroxide as electrolyte.They are popular because of their large capacity, stable discharge and high cost efficiency.Widely used in remote control, flashlight, wireless mouse, keyboard, children's toys, portable audio, sphygmomanometer and other products.
Recently, the battery trading network has purchased a batch ofNo. 5 alkaline batteryThis time, we will first test the ZMI5 rainbow alkaline battery, and conduct in-depth evaluation from the discharge, internal resistance and temperature. Now let's follow the small editor to explore the performance of this No. 5 alkaline battery.
Appearance introduction
As usual, let's take a look at the appearance and specifications of the battery first.
The ZMI5 rainbow alkaline battery is designed as a cylinder, and adopts yellow coating color, and provides a variety of coating colors.
One side of the ZMI5 rainbow alkaline battery is silk screen printed with: ZI5 and purple 5 alkaline battery logo.
The other side of the ZMI5 rainbow alkaline battery has silk screen instructions:
Executive standard: GB/T 8897.2;
Manufacturer: Jiangsupurple riceSupervised by Electronic Technology Co., Ltd. and MCsell;
Place of origin: No. 35, Mianxing East Road, High tech Zone, Mianyang City, Sichuan Province;
Caution: Do not charge or discard the battery in the fire.
The negative contact surface of ZMI5 rainbow alkaline battery is made of alloy metal, which is durable and anti-corrosion.
The positive contact surface of ZMI5 rainbow alkaline battery is still made of alloy.
The cylinder height of ZMI5 rainbow alkaline battery is about 50.1mm measured with a plastic caliper.
Using a plastic caliper, the diameter of ZMI5 rainbow alkaline battery is about 14mm.
The size of ZMI5 rainbow alkaline battery is between No. 7 battery and 18650 cell.
The weight of ZMI5 rainbow alkaline battery is about 23.1g.
The ZMI5 rainbow alkaline battery is compared with the palm of an adult man.
Discharge test
After looking at the appearance, get to the point;Battery trading network is tested according to GB/T 8897.2-2021 standard.
This time, according to the requirements of GB/T 8897.2-2021 on the characteristics and electrical performance of AA batteries, the battery trading network will test according to the discharge standards of radio and clock remote control. It will discharge with 50mA current and put it at the cut-off voltage of 1V.
50mA discharge test
Draw a line chart, set the current as 50mA, discharge the ZMI5 rainbow alkaline battery, with a voltage sharing of 1.28V, put the cut-off voltage as 1V, take about 52 hours and 46 minutes, discharge capacity of 2633mAh, release energy of 3.37Wh during the 50mA discharge process, in line with the energy release calculation formula: energy=capacity * voltage sharing (2633mAh * 1.28V=3.37Wh).
Internal resistance test
In the internal resistance test part, the battery trading network will use the internal resistance test instrument to test the full power internal resistance and empty power internal resistance respectively.
Summarizing the test data to the table, it can be seen that the full power internal resistance voltage is 1.6V, the empty power internal resistance voltage is 1.0V, and the nominal internal resistance of ZMI5 rainbow alkaline battery is ≤ 100m Ω.
Draw the histogram, and it can be seen that the 1.6V full power internal resistance is 84m Ω, and the 1.0V air power internal resistance is 303m Ω. It can be seen that the internal resistance does not exceed the nominal internal resistance under the full power state, and it reaches 303m Ω under the air power state, which is greatly different from the nominal internal resistance.
Temperature test
In the temperature test part, the battery trading network will measure the temperature 30 minutes after the 50mA discharge.
Discharge temperature test
50mA discharge
The ZMI5 rainbow alkaline battery was discharged at 50 mA for 30 minutes, and the maximum surface temperature was about 27.6 ℃.
Summary of Battery Trading Network
The ZMI5 Rainbow Alkaline Battery was tested by the Battery Trading Network with a discharge current of 50mA. After 52 hours and 46 minutes, the battery discharged 2633mAh and 3.37Wh. It can be seen that the energy density of AA cells is lower than that of lithium batteries.
Internal resistance and temperature performance, first of all, internal resistance, 1.6V full power internal resistance is 84m Ω, 1.0V air power internal resistance is 303m Ω, it can be seen that the internal resistance under full power does not exceed the nominal internal resistance, and it reaches 303m Ω under air power, which is greatly different from the nominal internal resistance;In terms of temperature, the maximum surface temperature is 27.6 ℃ after 30 minutes of 50 mA discharge current, and the temperature is well controlled.
On the whole,No. 5 alkaline batteryWith its stable performance and economic price, it has become the preferred power supply for many household and industrial applications.By understanding its characteristics, reasonable purchase and proper maintenance, users can maximize the effectiveness of these batteries, reduce the impact on the environment, and become the first choice for remote controls, electric toys, etc.