| Charge Current: | 7A |
|---|---|
| Discharge Current: | 7A |
| Over Charge Protection Voltage: | 3.85V /4.25V |
| Over Discharge Protection Voltage: | 2.2V/2.70V |
| Rated Voltage: | 12V/ 14.8V |
| Over Current Protection: | Adjustable |
| Samples: |
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| Customization: |
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Product Advantages:
| Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | |||||
| PCM Specifications For 12.8V (4S) LiFePo4 Battery Packs | |||||
| Model: LWS-4S8A-451(4S) | |||||
| No. | Test item | Criterion | |||
| 1 | Voltage | Charging voltage | DC:14.4V CC/CV | ||
| Balance voltage for single cell | / | ||||
| 2 | Current | Balance current for single cell | / | ||
| Current consumption | ≤50μA | ||||
| Maximal continuous charging current | 8A | ||||
| Maximal continuous Discharging current | 8A | ||||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 3.85V±0.025V | ||
| Over charge detection delay time | 0.5S-1.5S | ||||
| Over charge release voltage for single cell | 3.67V±0.05V | ||||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.2V±0.08V | ||
| Over discharge detection delay time | 50mS-150mS | ||||
| Over discharge release voltage for single cell | 2.65±0.10V | ||||
| 5 | Over current protection | Over current detection voltage | 100±25mv | ||
| Over current detection current | 20±5A | ||||
| Over charge current dection current | 20±5A | ||||
| Detection delay time | 50mS-150mS | ||||
| Release condition | Cut load | ||||
| 6 | Short protection | Detection condition | Exterior short circuit | ||
| Detection delay time | 200-500us | ||||
| Release condition | Cut load | ||||
| 7 | Resistance | Protection circuitry(MOSFET) | ≤50mΩ | ||
| 8 | Wire break protection | Wire break determination condition: * Signal line false welding * Signal Line fall off |
* Charging cut off * Discharge cut off |
||
| 9 | Temperature protection NTC Thermistor |
Charging high temperature protection | 50ºC±4ºC | ||
| Charging high temperature protection recovery | 40ºC±4ºC | ||||
| Charging low temperature protection | -10ºC±4ºC | ||||
| Charging low temperature protection recovery | 0ºC±4ºC | ||||
| Discharging high temperature protection | 70ºC±4ºC | ||||
| Disharging high temperature protection recovery | 60ºC±4ºC | ||||
| OrTemperature protection Switch | Temperature Switch (high temperature) | 75 °C | |||
| 10 | Temperature | Operating Temperature Range | -20~+70ºC | ||
| Storage Temperature Range | -40~+125ºC | ||||
| Shenzhen Li-ion Battery Bodyguard Technology Co.,LTD | ||||
| PCM Specifications For 11.1V(3S)Li-ion Battery Packs | ||||
| Model:LWS-4S8A-451 (3S) same port | ||||
| No. | Test item | Criterion | ||
| 1 | Voltage | Charging voltage | DC:12.6V CC/CV | |
| Balance voltage for single cell | ||||
| 2 | Current | Balance current for single cell | ||
| Current consumption | ≤50μA | |||
| Maximal continuous charging current | 8A | |||
| Maximal continuous Discharging current | 8A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 4.25V±0.025V | |
| Over charge detection delay time | 0.5S-1.5S | |||
| Over charge release voltage for single cell | 4.15V±0.05V | |||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.7V±0.08V | |
| Over discharge detection delay time | 50mS-150mS | |||
| Over discharge release voltage for single cell | 3.0±0.10V | |||
| 5 | Over current protection | Over current detection voltage | 100±25mv | |
| Over current detection current | 20±5A | |||
| Detection delay time | 50mS-150mS | |||
| Over charging current detection current | 20±5A | |||
| Release condition | Cut load | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-500us | |||
| Release condition | Cut load | |||
| 7 | Wire break protection | Wire break determination conditions: signal wire false welding or shedding |
Charging /Discharging Cut off |
|
| 8 | Resistance | Protection circuitry(MOSFET) | ≤50mΩ | |
| 9 | Temperature protection | Charging high temperature protection | 50ºC±4ºC | |
| Charging high temperature protection recovery | 40ºC±4ºC | |||
| Charging low temperature protection | -10ºC±4ºC | |||
| Charging low temperature protection recovery | 0ºC±4ºC | |||
| Discharge high temperature protection | 70ºC±4ºC | |||
| Discharge high temperature protection recovery | 60ºC±4ºC | |||
| 10 | Temperature | Operating Temperature Range | -40~+85ºC | |
| Storage Temperature Range | -40~+125ºC | |||
About the battery BMS/PCB/PCM
Function: Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .
Build with high end electronic components (High End IC and MOSFET ) ,simple structure design will let it have more stable quality working performance , Flexible application
Q: How many Ampere protection circuit boards should choose?
A: It depends on your load power such as electric motor power please contact the sales or technical support before buying.
Q: What is the distinction between same port wiring and different port wiring?
A: The cathode of charger and load is different for different port wiring , the cathode of charger and load is same for same port wiring and the charging current is equal to the discharge current.
Q: What is the distinction between balance and unbalance function?
A: Equilibrium function is that high voltage cells will be discharged with resistor, waiting for the low voltage cells , to achieve the each cell voltage is consistent , to improve the battery performance for the whole group.
Q: Do you have Minimum Order Requirement (MOQ)?
A: No, We don't have MOQ, Different customer have different requirement ,We can provide various capacity and size is per your requirements,Also ODM / OEM is welcome.
Q: What is your term of payment?
A: PayPal, T/T, L/C,
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