GRANKIA LFP300-12.8 deep cycle lifepo4 12v 300ah lithium battery supports rapid charging with over 95% round-trip efficiency, making it perfect for solar and off-grid energy storage systems.
The 12v 300ah lithium battery can handle deep discharge cycles, making it ideal for applications where the battery is frequently discharged to a low state of charge.
The use of LiFePO4 technology provides a number of advantages, including improved safety, longer lifespan, and better thermal stability compared to other lithium-ion battery chemistries.
The 300ah lithium battery has a nominal voltage of 12V, making it compatible with a wide range of devices and systems that use this standard voltage.
12V 300AH Lithium Battery Features
Low Self-Discharge
The 12v 300ah lithium ion battery has a low self-discharge rate, which means that it can hold its charge for long periods of time without significant loss of capacity.
Maintenance-Free Operation
No need for water topping or regular maintenance, making it ideal for users seeking hassle-free, long-term performance.
Long Cycle Life
The 300ah lithium iron phosphate battery has a long cycle life of up to 3000 cycles, depending on the depth of discharge and other factors, making it a reliable and cost-effective option for long-term energy storage.
Environmentally Friendly
Free from toxic materials and 100% recyclable, the 300ah lithium battery 12v is a sustainable power solution.
Built-in BMS
Integrated battery management system (BMS) ensures safe and efficient operation, with features such as:
- Overcharge and over-discharge protection
- Short-circuit protection
- Temperature monitoring and control
- State of charge (SOC) and state of health (SOH) monitoring
Typical Applications
Solar Energy Storage Systems
-
Off-grid solar power systems
-
Hybrid renewable energy systems
-
Residential and commercial solar battery banks
Electric Mobility & Vehicles
-
Golf carts, e-boats, low-speed electric vehicles
-
High discharge rate and long lifespan for daily use
Marine & Boats
-
Power for trolling motors, fish finders, and onboard electronics
-
Lightweight and vibration-resistant alternative to AGM or lead-acid
Off-Grid Cabins & Tiny Homes
-
Long-lasting and low-maintenance energy storage
-
Ideal for remote living with limited grid access
Technical Specifications
Nominal Voltage: 12.8V
Nominal Capacity: 300Ah
Energy: 3840Wh
Charge Voltage: 14.6V
Discharge Cut-off: 10.0V
Standard Charge Current: 90A
Max Continuous Discharge: 140A
Cycle Life: ≥ 6000 cycles (@80% DoD)
Operating Temperature:
-
Charge: 0°C to 45°C
-
Discharge: -20°C to 60°C
How to Use the 300AH Lithium Battery with Solar Panels
To use the LFP300-12.8 LiFePO4 battery with solar panels, you’ll need a complete solar power system that includes:
- Solar Panel: Converts sunlight into electrical energy
- Charge Controller: Regulates the flow of energy from the solar panel to the battery
- LFP300-12.8 Battery: Stores excess energy generated by the solar panel for later use
- Inverter/Charger: Converts DC power from the battery to AC power for use in appliances, and also charges the battery from an external power source (e.g. grid power)
System Operation
- Solar Panel Generation: The solar panel generates electrical energy from sunlight during the day.
- Charge Controller Regulation: The charge controller regulates the flow of energy from the solar panel to the battery, ensuring that the battery is charged safely and efficiently.
- Battery Charging: The battery is charged by the solar panel during the day, storing excess energy for later use.
- Battery Discharging: At night or during periods of low sunlight, the battery discharges its stored energy to power the load (appliances or devices).
- Inverter/Charger Operation: The inverter/charger converts the DC power from the battery to AC power for use in appliances, and also charges the battery from an external power source (e.g. grid power) if necessary.
Benefits
- Renewable Energy: The system uses renewable energy from the sun, reducing reliance on fossil fuels and lowering carbon emissions.
- Energy Independence: The system provides energy independence, allowing users to generate and store their own energy.
- Backup Power: The system provides backup power during grid outages or at night, ensuring continuous energy availability.
- Low Maintenance: The system requires low maintenance, as the battery and solar panel are designed to be durable and long-lasting.
Setup Tips
-
Battery Settings: Set the charge controller to LiFePO4 mode or manually set charge parameters (e.g., charging voltage ~14.6V, cutoff ~10.0V).
-
Fuses/Breakers: Include proper fuses between battery, controller, and inverter to protect from overcurrent.
-
Parallel/Series Expansion: You can connect multiple LFP300-12.8 batteries in parallel for more capacity or in series (if supported) for higher voltage systems (e.g., 24V or 48V).
The Articles You may Like
- What You Need to Know About Lithium Ion Battery Recycling
- How to Select Lead Acid Battery vs Lithium ion
- What is a Split Phase Hybrid Inverter
- The Impact of Lithium Battery for Solar on Modern Energy Grids
- Top 7 Benefits of Using Zero Export Grid Tie Inverter
- Solar panel – Wikipedia
| Model | LFP300-12.8 |
| Electrical Characteristics | |
| Rate voltage(VDC) | 12.8 |
| Rate capacity(AH) | 300 |
| Energy storage(WH) | 3840 |
| Cycle life | 6000 cycles @80% DOD |
| Months self discharge | ≤2% |
| Charge | |
| Charge voltage (VDC) | 14.6-15.2 |
| Charge current (A) | 90 |
| Max. charge current(A) | 140 |
| Charge cut-off voltage(VDC) | 14.6±0.2 |
| Discharge | |
| Discharge current (A) | 100 |
| Max. discharge current (A) | 140 |
| Discharge cut-off voltage(VDC) | 10 |
| Environment | |
| Charge temperature | 0 ℃ to 45℃ @60±25% RH |
| Discharge temperature | -20 ℃ to 60℃ @60±25% RH |
| Storage temperature | 0℃ to 40 ℃ @60±25% RH |
| Mechanical | |
| IP class | IP20 |
| Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Case material | ABS |
| Dimensions L*W*H(mm) | 640x245x220 |
| Weight(kg) | 37.0 |
Online Chat
Scan code to chat by WhatsApp
