12V 300Ah Battery
Hongyitai 12V 300Ah Li-ion battery adopts Class A automotive LiFePO4 cells and UL certified 200A BMS, ensuring top safety, energy density, power and stability.
Perfect for off-grid solar systems and outdoor applications such as home backup power, RV, camping, sailing, etc.
12V 300Ah Lifepo4 Battery Specs
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Work Voltage Range 10.8~14.6V
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Nominal Voltage 12.8V
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Nominal Capacity 300Ah
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Rated Energy 3840Wh
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Max Discharge Power 1280W
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Standard Charge Current 60A
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Recommend Charge Current ≤80A
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Max Charge Current 100A
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Recommend Discharge Current ≤100A
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Max Continue Discharge Current 100A
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Peak Discharge Current (10S) 200A
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Resistance ≤10mΩ
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Lifespan (25℃,0.5C,80%DOD) >6000
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Waterproof IP65
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Weight 32Kg
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Size (Length * Width * Thick) 522*240*218mm
Hongyitai Batery Discharge Curve
12V 300Ah lithium battery discharging curve
Left image is 12.8V 300Ah lifepo4 battery discharge curve chart.
12V 300Ah lithium battery applications
- Medical equipment: Provide stable power supply for portable medical equipment (such as insulin pumps and monitoring instruments).
- Monitoring systems: Powering sensors and cameras at traffic lights, ensuring continuous monitoring without the need for frequent maintenance.
- Battery upgrade: Replace traditional lead-acid batteries to provide power support for electric wheelchairs, scooters, etc.
- Military and Aerospace: Due to its reliability and safety, it is gradually being used in the military and aerospace fields.
How we produce 12v 300ah deep cycle battery
- Matching set of high quality LiFePO4 cells. For a 12V 300Ah battery, you will need 4 cells in series, each with a nominal voltage of 3.2V and a capacity of 300Ah.
- Series the cells in series positively to each other to achieve a nominal voltage of 12.8V. Connect the batteries using nickel strips and a spot welder.
- Install a battery management system (PCM) to prevent overcharging, over-discharging and short circuit protection. Select a BMS with a nominal voltage of 12V and a continuous current of at least 100A.
- Solder the protection plate in the P+,P- position.
- Sheet metal enclosure to house the battery and BMS. cells and batteries need to be insulated.
- Install terminal connectors, fuses and any monitoring displays.
- Perform initial charge/discharge and testing to verify proper operation and capacity.
FAQ for 12v 300ah lifepo4 lithium battery
The operating time of a 12V 300Ah lithium battery depends on the load power:
If the load is 50W (about 8.33A), the operating time: 300Ah / 8.33A = 36H.
Battery energy: 300Ah * 12V = 3600Wh.
Assuming that the battery is expected to be fully charged within 5 hours, the required solar panel power: 3600Wh / 5H = 720W.
Excluding the solar energy conversion efficiency, if a 100W solar panel is selected: 720W / 100W = 7.2.
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