The Reliable Battery Pack Overcharge-Discharge Tester evaluates lithium battery safety under extreme charge/discharge cycles. Featuring precision voltage/current controls, real-time data logging, and compliance with UL 2054/IEC 62133/UN38.3 standards, it ensures thermal runaway prevention, short-circuit mitigation, and voltage stability for EVs, energy storage, and consumer electronics.
Relevant Standard Testing Requirements
Meet the standards: IEC62133-2012, UL1642, UN38.3 and 31241-2014 standards.
Overcharging: After discharging the battery according to the test method specified in 4.5.2, first charge it with a constant current at the larger value between 3CA and three times the charging current recommended by the manufacturer until reaching the test voltage in Table 6, and then charge it at a constant voltage with this test voltage.
Overcharged voltage of different types of positive electrode materials (graphite is the negative pole)
| Positive electrode material | Lithium cobaltate | Lithium manganate | Ternary materials | Lithium ferrous phosphate |
| Overcharging voltage/V | 4.6 | 4.6 | 4.6 | 5.0 |
For batteries with other material systems, the test voltage should be at least 4.6V.
Monitor the temperature change of the battery during the verification process. The test shall be terminated when one of the following two situations occurs:
a) The continuous charging time of the battery reaches the larger value between 7 hours and the charging time defined by the manufacturer.
b) The temperature of the battery drops to 20% lower than the peak value. The battery should not catch fire or explode.
Main Parameters
| Model | MBS-CF20V25A |
| Indicator items | Indicator parameters |
| Input power supply | AC380V±10% 50Hz |
| Input active power | 500W |
| Voltage measurement range per channel | Charging: 100mV~20V Discharge 100mV~20V |
| Minimum discharge voltage | 2.5V (Note: The current output line must be within 2 meters to be satisfied) |
| Precision | ±0.1% Or FS |
| Stability | ±0.1% Or FS |
| Current output range per channel | Charging: 20mA~ 10A Discharge: 20mA~50A |
| Precision | ±0.1% Or FS |
| Stability | ±0.1% Or FS |
| Single-channel output power | 500W |
| Stability | ±0.2% Or FS |
| Current response time | Current (10%~90%) The hardware response time is 10 Master of Science |
| Time range of working steps | ≤ (365*24) hour/step |
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