External Short Circuit and Its Effect on Battery Performance Connecting the outer two ends of the battery to any conductor will cause an external short circuit. For different battery types, the short circuit may bring about different serious consequences. For example, electrolyte temperature rises, internal air pressure rises, etc. If the air pressure exceeds the withstand […]
Can Batteries of Different Capacities Be Used in Combination? If you mix old and new batteries or batteries of different capacities, liquid leakage and zero voltage may occur. This is due to the difference in capacity during the charging process. And it causes some batteries to be overcharged. Some batteries are not fully charged. The high battery is […]
What Is the Rate Discharge and the Hourly Rate Discharge of Battery? Rate discharge refers to the rate relationship between discharge current (A) and rated capacity (A•h) during discharge. Hourly rate discharge refers to the number of hours required to discharge the rated capacity at a certain output current.
Notes for the Use of Battery 01) Read the battery manual carefully before use. 02) The electrical and battery contacts should be clean. Then, wipe with a damp cloth if necessary, and install according to the polarity mark after drying. 03) Do not mix old and new batteries. And different types of batteries of the […]
Vibration Experiment for Lithium Battery The vibration test method for lithium battery : After the battery is discharged to 3.0V at 0.2C, it is charged to 4.2V with constant current and constant voltage at 1C, and cut-off current of 10mA. After being left for 24 hours, it will vibrate under the following conditions: The vibration experiment is carried […]
Temperature Cycling Experiment for Battery The temperature cycle experiment contains 27 cycles. And each cycle consists of the following steps: 01) The battery is changed from normal temperature to 66±3℃, placed for 1 hour under the condition of 15±5%. 02) Switch to a temperature of 33±3°C and a humidity of 90±5°C for 1 hour. 03) […]
What Is a Temperature Rise Experiment for Battery? After the battery is fully charged, put it into the oven and start to heat up from room temperature at a rate of 5°C/min. When the oven temperature reaches 130°C, keep it for 30 minutes. The quality battery should not explode or catch fire.
Standard Charge Retention Test for Lithium Batteries The national standard stipulates that the standard charge retention test for lithium batteries : (IEC has no relevant standards) the battery is placed at 0.2C to 3.0/piece. And then charged to 4.2V at a constant current and voltage of 1C, with a cut-off current of 10mA. After storing for 28 […]
What Are the Differences Between the Internal Resistance of Charged State and That of Discharged State? The internal resistance of the charged state is the internal resistance when the battery is 100% fully charged. While, the internal resistance in the discharged state is the internal resistance after the battery is fully discharged. Generally speaking, the internal resistance in […]
What Is a 24-hour Self-Discharge Test? The 24-hour self-discharge can quickly test its charge retention capacity. Discharge the battery at 0.2C to 3.0V, charge at constant current and constant voltage to 4.2V with 10mA cut-off current. Then, leave it for 15 minutes. And discharge the battery at 1C to 3.0V to measure its discharge capacity C1. Then charge the battery with […]