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SL4581A
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Featuring a built-in BMS, the 150amp Powerhouse battery provides a reliable 12.8V direct replacement for AGM batteries. Its short circuit, over temperature, and under/over voltage cut off capabilities ensure secure power charging/discharging. Easily wire this battery in series and/or parallel, and take advantage of its 5 year warranty. Its lightweight yet powerful LiFePO4 technology offers a powerful, maintenance-free energy solution with an extended service life and 80-90% charge levels in storage, far exceeding AGM alternatives. Get the power of advanced, low-maintenance batteries now!
Dimensions: 521 x 237 x 217mm
Overall Weight: 20kg
Terminal Type: M8 / F12
Connection: 12-48V max 4 in series, no limit in parallel.
Note: When used in series each battery will need to be discharged to cut off before connecting so that all cells are all balanced.
- Case Material: ABS
- Case IP Rating: IP56
- Cell Type: Prismatic
- Certification: CB/CE, UN38.3, UL1642 @ cell.
- Shipping Class: UN3480, Class 9
- Battery Module Specification
- Nominal Voltage: 12.8V @ 25°C, 0.2C
- Capacity: 150Ah @ 25°C, 0.2C
Operating Parameters
- Charging Voltage: 13.8 - 14.4V
- Discharging Voltage: 9.2V-15.4V (Recommended 11.8V)
- Charging Current: 150A max (Recommended 50A)
- Max Constant Discharge: 150A
- Pulse Discharge: 1300A for 50mS
Temperature
- Charge Range: 0 to 45°C
- Discharge Range: -20 to 60°C
- Storage Range: -20 to 45°C
Design Life:
- 10 years @ 25°C, 0.2C
- Cycle Life (25°C, 0.2C): 2000 times (100% DOD to 80% end)
- Cycle Life (25°C, 0.5C): 4000 cycles (100% DOD to 50% end)
BMS Parameters
- Charging
- Cell Voltage Protection: 3.9V Delay 1-2S (Recover when discharge current 1A or cell voltage 3.38V or module voltage 13.52V)
- Module Voltage Protection: 15.6V Delay 1-2S (Recover when discharge current 1A or cell voltage 3.38V or module voltage 13.52V)
- Over Charging Current 1: 150A Delay 20-30S (Turn to pre-charge mode and try to recover in every 3 minutes)
- Temperature Protection: -10°C or 70°C, Delay 1-2S (Recovery when 0°C or 60°C)
Discharging
- Cell Voltage Protection: 2.2V Delay 500mS (Recover when charge current 1A or cell voltage 2.6V or module voltage 10.4V)
- Module Voltage Protection: 8.8V Delay 1-2S (Recover when charge current 1A or cell voltage 2.95V or module voltage 11.8V)
- Over Discharging Current 1: 550-650A Delay 500-1500mS (Recover when charging current 1A, or recover in every 60S)
- Over Discharging Current 2: 1100-1300A Delay 50-150mS (Recover when charging current 1A, or recover in every 60S)
- Short Circuit: 200-700us
- Temperature Protection: -20°C or 75°C, Delay 1-2S (Recovery when -10°C or 65°C)
BMS Features
- PCB Temp Protection: 115°C Delay 1-2S Recover when 80°C
- Cell Balance: 25-45mA passive balance cell voltage difference 45mV
- Temperature Accuracy: ±2°C Cycle measurement Measuring range -40 to 100°C
- Voltage Accuracy: ±20mV Cycle measurement for cells and modules
- Current Accuracy: FSC±5% Cycle measurement measuring range -200 to +200
- SOC: 5% (integral calculation)
- Power Consumption: 300uA (switch off mode - storage), 100uA (sleep mode - protection and standby), 15mA (operating mode)

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