1.Gelled electrolyte made by mixing sulfuric acid with silica fume.
2.The electrolyte is gel like ,immobile and does not leak ,enabling
uniform reaction of each part of the plate .
3.High rate discharge performance due to tight assembly technology
4.Strong heat dissipation and wide operating temperature range
5.Avoid acid mist being separated out , environment friendliness
6.Efficient venting system release excessive gas automatically
Solar and wind energy storage system
EPS and UPS battery backup
Signal system , emergency lighting system , security system
Telecommunication Equipment
Power plant and transmission system
Basic Characteristics
| No. | Item | Specification | |||
| 1, | Cell Model | 3.2V/6Ah | |||
| 2, | Array mode | 4S7P | |||
| 3, | Nominal Capacity | 42Ah(Standard 0.5C charge and 0.5C discharge) | |||
| 4, | Minimum Capacity | 42Ah | |||
| 6, | Nominal Voltage | 12.8V | |||
| 7, | Initial AC Impedance | ≦3mΩ(at 1kHz after standard charge) | |||
| 8, | Charging Voltage | 14.6V | |||
| 9, | Discharging Voltage | 9.2V | |||
| 10, | Standard charging method | Constant Current:21A(0.5C) | |||
| 11, | Standard discharging method | Constant Current:42A(1C) | |||
| 12, | Maximum continuous discharge current(≦2.3S) | Constant Current:84A(2C) | |||
| 13, | Cycle Life | Cycle Life≥1500time | |||
| No. | Item | Specification | |||
| 14, | Weight(Kg) | 6kg | |||
| 15, | Operating Temperature | Charging:0℃～55℃ Discharging:-20℃～60℃ |
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| 16, | Storage Temperature | 1 month: -20℃～60℃ 3months: -20℃～45℃ 1 year: -20℃～25℃ |
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| 17, | Relative Humidity | 65±20% | |||
| 18, | Delivery Voltage | ≥12.8V | |||
| 19, | Water proof grade | 0 | |||
| 20, | Charge retention and capacity recovery capability |
Standard charge the battery, and then put aside at room temperature for 28d or 55 ℃ for 7d, Charge retention rate ≥90%, Recovery rate of charge≥90 |
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Environmental Characteristic
No. |
Item |
Testing Instruction |
Requirement |
||
| 1, | Vibration Test |
The battery will be vibrated 30 minutes in three mutually perpendicular directions and changing |
The battery shall not rupture, smoke,explode or leak.Battery electric voltage 12.8V |
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No. |
Item |
Testing Instruction |
Requirement |
||
| 2, | Constant Temperature/ Humidity Test |
Keep the battery at 40±2℃ and 90%-95%RH for 48 hrs after complete charge. After the test, keep the battery at 20±5℃ for 2 hrs. Discharge at 10A constant current discharge to the termination voltage. | Appearance of the battery shall not rust, smoke or explode. Discharge Capacity ≥ ８0% |
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| 3, | High Temperature Performance Test |
Keep the battery at a hot oven with 55±2℃ for 2 hrs, then measure the capacity with constant discharge current 0.5C to discharge protection point after complete charge. After the test, keep the battery at 20±5℃ for 2 hrs. |
Appearance of the battery shall not rust, smoke or explode Discharge Capacity >90% |
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| 4, | Low Temperature Performance Test |
Keep the battery at -20±2℃ for 20 hrs, then measure the capacity with constant discharge current 0.5C to discharge protection point after complete charge. After the test, keep the battery at 20±5℃ for 2 hrs. |
Appearance of the battery shall not rust, smoke or explode Discharge Capacity >55% |
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| 5, Safe Characteristic Note: safety characteristics test no electronic protection circuit |
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No. |
Item |
Testing Instruction |
Requirement |
||
| 1, | Over-charge test |
Charge in accordance with the following two ways (Choosing one between the two). (1)Charge at 1C current for 90min or until voltage of some single battery reaches 5.0V (stop test when fulfills either condition). (2)Charge at 3C current until the voltage of some single battery reaches 10.0V, then stop the test. | The battery shall not explode or catch fire |
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| 2, | Over-discharge test |
Charge the battery. Place at 20±5℃ for 1h, then discharge in 1/3C current at same emperature until some cell’s voltage is 0V | The battery shall not explode or catch fire |
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| 3, | Short-ircuiting Test |
After charge batteries, place at 20±5℃ for 1h. Short the battery for 10min, the external circuit resistance should be less than 5mΩ. |
The battery shall not explode or catch fire |
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Above technical performance standard test environment temperature: 20±5℃ , Relative humidity: 65 ± 20% (unless otherwise requested), Atmospheric pressure: 86Kpa-106Kpa
BMS Specification
| No. | Item | Specification | |||
| 1, | Model | 4S same port BMS | |||
| 2, | Charge Method | CC->CV | |||
| 3, | Charge Current | 21A | |||
| 4, | Continuous Discharge Current |
42A | |||
| 5, | Over Voltage Protection Threshold |
3.7V±0.05 | |||
| 6, | Over Voltagerotection Release Conditions | 3.6V±0.05 | |||
| 7, | Under Protection Voltage Threshold |
2.3V±0.05 | |||
| 8, | Under Voltage Protection Release Conditions |
Charge to 2.5V or more to release | |||
| 9, | Over Current Protection (Discharge) |
84A,Protection Delay 2.3S | |||
| 10, | Protection Release Condition(Discharge) | Remove Load | |||
| 11, | Short Circuit Current Protection |
Ok | |||
| 12, | BMS Consumption current |
≤25uA | |||
| 13, | Over temperature protection |
The protection board with over-temperature protection function during battery discharge, the maximum temperature does not exceed 65℃, and the protection board will automatically start the power-off protection function when it exceeds the protection board. | |||
Product appearance and size
Alice
Xiamen Maigao global e-commerce Co., Ltd
