China LiFePO4 RV/Lev Batteries Solar Storage Battery 12V 120ah, Find details about China Solar Storage Battery, Solar Battery Bank from LiFePO4 RV/Lev Batteries Solar Storage Battery 12V 120ah
No. | Items | Specifications |
1 | Nominal Voltage | 12.8V |
2 | Nominal Capacity | 120Ah |
3 | Cell Inside | LiFePO4 3.2V 120Ah cell |
4 | Configuration | 4S1P |
5 | Standard Charge Current | 0.2C-0.5C |
6 | Max. Charge Current | 1C |
7 | Battery management System (BMS) | BMS-L4S120120 |
8 | Continuous Discharge Current | 120A |
9 | Peak Discharge Current | 240 |
10 | Full Charged Voltage | 14.6V(3.65V per cell) |
11 | Charge Cut-off Voltage | 15.6V (3.9V per cell) |
12 | Discharge C ut-offVoltage | 8V (2.0V per cell) |
13 | Net Weight | 14.76kg |
14 | Dimensions | L406*W170*H206(235mm) |
15 | Connector | threaded terminals |
threaded terminals | ||
16 | Operating Temperature | Charging: 0°C ~ 45°C Discharging: -20°C ~ 55°C |
17 | Storage Temperature | (Recommended to store 20 ± 5°C for long term storage) |
18 | Cycle Life | 2000 times (80% of initial capacity at 0.2C rate, IEC Standard) |
NO | Item | Testing Procedure | Requirements |
1 | Nominal Capacity | 0.5~1hr after standard charge, measure the capacity by discharging at constant current of 0.2C5A to the cut-off voltage of 8V at 20±5ºC. | 120Ah |
2 | Capacity at High Discharging Current | 0.5~1hr after standard charge, measure the capacity by discharging at constant current of 1C5A. | Discharge time is no less than 51 minutes. no explosion. |
3 | Low Temperature Discharging | After standard charge, put the battery in a cooling box of -10±2ºC for 16~24hr ,and then discharge the battery with constant current of 0.2C5A and keep record of the discharging time. After 2hr of standby at 20±5ºC, check the performance of the battery pack. | Discharge time is no less than 3.5 hours. no explosion. |
4 | High Temperature Discharging | After standard charge, put the battery in a heating box of 55±2ºC for 2hr, and then discharge the battery with constant current 1C5A and keep record of the discharging time. After 2hr of standby at 20±5ºC, check the performance of the battery pack. | Discharge time is not less than 51 minutes. no explosion. |
5 | Shelf Life | After standard charge, shelve the battery pack for 28 days at 20±5ºC,and then discharge it with constant current of 0.2C5A ,recording the discharging time. | Discharge time is not less than 4.25 hours. |
6 | Cycle Life | Fully discharge the battery before this test ,then charge it with constant current 1C5A,when the voltage of the battery reaches the charge limited voltage , charge the battery with constant voltage until the charging current below 20mA,then have a 0.5h~1h rest period, next ,discharge with current 1C5A to the cut-off voltage .After a 0.5h~1h rest period ,begin next charge and discharge cycle. when two times over discharge time is less than 36min, life of the battery is end. | Cycle life is not less than 1000 cycles. No liquid leakage during the test. |
NO | Item | Test Procedure | Requirements |
1 | Constant Humidity and Temperature | 1. After standard charge, keep the battery for 48 hr in an insulated box at constant relative humidity of 90~95% and constant temperature of 40±2ºC; 2. Take out the battery pack from the box and standby for 2hr at room temperature and check the battery; 3. Finally discharge the battery with constant current 0f 1C5A to the cut-off voltage and keep record of the discharging time. | No visible distortion, no rust, no smoke, no explosion. Discharging time is not less than 36min. |
2 | Vibration Test | 1. After standard charge, fix the battery to an oscillatory board; 2. Cycle scan in three dimensions of X/Y/Z axis with a frequency from 10Hz to 55Hz for 30min, scan velocity of 1oct/min; 3. Check the appearance and measure the voltage of the battery. Frequency: 10Hz~30Hz; Displacement Amplitude/Single Amplitude: 0.38mm, Frequency: 30Hz~55Hz; Displacement Amplitude/Single Amplitude: 0.19mm. | No visible damage, no liquid leakage, no smoke, no explosion. |
3 | Impact Test | After the vibration test, fix the battery to the board in X/Y/Z axis three directions. Pulse peak acceleration: 100m/s2; Impact times /sec: 40~80; Pulse duration: 16ms; Impact times: 1000±10. Check the appearance and measure the voltage of the battery. | No visible damage, no liquid leakage, no smoke, no explosion. |
NO | Item | Test Procedure | Requirements |
1 | Thermal-Shock Test (Heating Test) | 1. 24hr standby after standard charge, the battery is put in a heater, with a temperature rising at a rate of 5±2ºC/min to 150±2ºC; 2. Keep the battery at 150±2ºC for 30 minutes; 3. Check the appearance of the battery. | No explosion, no fire |
2 | Short Circuit Test | 1. 24hr standby after standard charge, the positive and negative terminals of the battery is short-circuited with copper wire(maximum resistance ≤50mΩ); 2. Keep close watch of the change in temperature of the battery. When the temperature of the battery is 10ºC lower than that of the peak value ,end the test ; 3. Check the appearance and the temperature of the battery. | No explosion, no fire. The temperature of the exterior cell casing shall not exceed150ºC. |