Description
Overview
The 12.8V 75Ah LiFePO4 Battery delivers 960Wh of high-capacity power in a standard BCI Group 24 form factor. As a professional lithium battery manufacturer, we’ve engineered this solution with 5,000+ cycles and IP65 protection, offering exceptional value for OEM applications requiring drop-in lead-acid replacement with superior performance.
Key Features
- High-Capacity Energy: 960Wh output in compact Group 24 size (260×168×210mm)
- Powerful Performance: 75A continuous charge/discharge current
- Ultra-Lightweight: Only 6kg (13lbs) – 70% lighter than comparable lead-acid
- Smart Monitoring: Optional Bluetooth/APP/4G remote connectivity
- Scalable Design: Supports up to 6 parallel connections (5.76kWh total)
Technical Specifications
- Voltage Range: 10V-14.6V (12.8V nominal)
- Temperature Range: -20°C~65°C operation
- Cycle Life: >5,000 cycles at 80% DOD
- Self-Discharge: Just 3% per month
- Terminals: Heavy-duty M8 connectors
Advanced Battery Management
- Premium BMS Options: JBD or DALY with comprehensive protection
- Active Balancing: Optional for optimal cell performance
- Multiple Protocols: RS485/RJ45 connectivity available
- Thermal Options: Self-heating or cooling fan
Customization Options
- Branding: Custom silkscreen, labels, laser engraving
- Display: Optional SOC LCD for real-time monitoring
- Protection: Circuit breaker or power switch
- Special Features: Solar MPPT integration
Industry Applications
- Marine and RV power systems
- Solar energy storage
- Electric mobility solutions
- Industrial backup power
Quality Assurance
- 10-year design life with 3-year warranty
- Global certifications: UL, IEC, CE, UN38.3
- OEM-ready with custom solutions
- ABS casing with IP65 protection
What Makes the 12V 75Ah LiFePO4 Battery the Best Choice for Power Solutions?
The 12V 75Ah LiFePO4 battery is a lightweight, long-lasting lithium iron phosphate battery ideal for RVs, marine, solar, and off-grid applications. It features a built-in Battery Management System (BMS) for safety, offers up to 10 times longer cycle life than lead-acid batteries, and supports Bluetooth monitoring for real-time status updates.
What are the detailed specifications of a 12V 75Ah LiFePO4 battery?
A typical 12V 75Ah LiFePO4 battery operates at a nominal voltage of 12.8V with a capacity of 75 amp-hours, delivering approximately 960 watt-hours of energy. It usually weighs between 9 to 12 kilograms (20 to 26 pounds), significantly lighter than comparable lead-acid batteries. Dimensions vary but often conform to Group 24 standards (around 10 x 6.5 x 8.5 inches). Maximum continuous discharge current ranges from 60A to 140A, with peak discharge currents exceeding 600A in some models. These batteries include internal resistance typically below 50 milliohms and support 100% depth of discharge without memory effect.
Chart: Typical Specifications of a 12V 75Ah LiFePO4 Battery
| Specification | Value |
|---|---|
| Nominal Voltage | 12.8 V |
| Capacity | 75 Ah |
| Energy | ~960 Wh |
| Weight | 9 – 12 kg |
| Dimensions (L x W x H) | ~260 x 168 x 210 mm |
| Max Continuous Discharge | 60 – 140 A |
| Cycle Life | 2000 – 6000 cycles |
How does the Battery Management System (BMS) ensure safety and optimize performance?
The BMS is a critical component that protects the battery from overcharging, over-discharging, short circuits, overcurrent, and extreme temperatures. It balances individual cells to maintain uniform voltage and prolongs battery life. Some advanced BMS units also provide Bluetooth connectivity for remote monitoring of voltage, temperature, cycle count, and state of charge. This intelligent management ensures optimal battery health and safety in demanding environments.
What are the primary applications of 12V 75Ah LiFePO4 batteries?
These batteries are widely used in recreational vehicles (RVs), campers, marine vessels, solar energy storage, electric scooters, medical equipment, and off-grid power systems. Their lightweight, long cycle life, and safety features make them ideal for mobile and stationary power solutions where reliability and efficiency are crucial.
How does a 12V 75Ah LiFePO4 battery outperform traditional lead-acid batteries?
Compared to lead-acid batteries, LiFePO4 batteries offer:
-
Up to 10 times longer cycle life (2000-6000 cycles vs. 200-500 cycles)
-
Approximately 1/4 the weight for the same usable power
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Faster charging times (up to 5 times faster)
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100% depth of discharge without damage
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No memory effect or hydrogen gas emissions
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Higher energy density and consistent voltage output
These advantages translate to fewer replacements, lighter systems, and more efficient energy use.
Chart: LiFePO4 vs Lead-Acid Battery Comparison
| Feature | LiFePO4 Battery | Lead-Acid Battery |
|---|---|---|
| Cycle Life | 2000 – 6000 cycles | 200 – 500 cycles |
| Weight | ~9-12 kg | ~30-40 kg |
| Depth of Discharge | 100% | 50% |
| Charging Speed | Up to 5x faster | Slower |
| Maintenance | Low | High |
| Safety | High (no gas emission) | Moderate (gas emission) |
What are the recommended charging and maintenance practices?
Charging should be done using a charger compatible with LiFePO4 chemistry, typically with a voltage limit around 14.4-14.6V and a current limit matching battery specs (usually 60-75A max). Avoid charging below 0°C to prevent damage. Maintenance is minimal due to the battery’s sealed design and BMS protection. Regular monitoring of voltage and temperature, especially via Bluetooth-enabled models, helps ensure longevity.
What warranty and lifespan can users expect from these batteries?
Most 12V 75Ah LiFePO4 batteries come with warranties ranging from 5 to 10 years, reflecting their durability and reliability. Lifespan typically exceeds 2000 full charge-discharge cycles, with some models rated for over 6000 cycles at partial discharge rates. This longevity reduces total cost of ownership compared to traditional batteries.
How does Bluetooth monitoring enhance battery management?
Bluetooth-enabled LiFePO4 batteries allow users to monitor real-time battery status, including voltage, current, temperature, state of charge, and cycle count via smartphone apps. This feature enables proactive maintenance, early detection of issues, and optimized charging schedules, enhancing safety and performance.
How can 12V 75Ah LiFePO4 batteries be connected in series or parallel configurations?
These batteries support flexible configurations: connecting in series increases voltage (e.g., two 12V batteries yield 24V), while parallel connections increase capacity (amp-hours). Proper BMS and equalization devices are recommended to ensure balanced charging and discharging, especially in multi-battery setups.
What operational temperature ranges are ideal for these batteries?
LiFePO4 batteries typically operate safely between -20°C to 60°C for discharge and 0°C to 60°C for charging. Charging below freezing can damage cells; thus, many batteries include low-temperature cut-off protections. Storage temperatures should be moderate to prolong battery life.
How should one choose the appropriate charger for a 12V 75Ah LiFePO4 battery?
Select a charger specifically designed for LiFePO4 batteries, with constant current/constant voltage (CC/CV) charging profiles, voltage limits around 14.4-14.6V, and current ratings compatible with the battery’s max charge current (typically 60-75A). Chargers with temperature compensation and BMS compatibility ensure safe, efficient charging.
