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मराठी 
12.8V314Ah Wall Mounted LiFePO4 Battery
The 12.8V 314Ah Wall Mounted LiFePO4 Battery is a high-capacity 12.8V 314Ah lithium battery designed for residential solar storage, backup power, and off-grid energy systems. With a total usable energy of 4.01kWh, this battery delivers stable, long-lasting performance in a compact, wall-mounted metal enclosure.
Built with BYD LiFePO4 cells, the battery offers exceptional safety, durability, and a cycle life exceeding 6,000 cycles (70% EOL). Integrated Bluetooth and RS485 communication allow real-time monitoring and system integration, making it ideal for modern solar and hybrid energy setups.
This model is commonly searched and applied as a 12V 300Ah LiFePO4 battery, 300Ah 12V lithium battery, or 3.5–4kWh lithium battery for home and commercial energy storage.
Get an up-to-date quote with additional free information to download!
Key Features
- High Energy Capacity – 12.8V314Ah Delivers reliable energy storage equivalent to a 4kWh lithium battery, suitable for extended runtime applications.
- BYD LiFePO4 Battery CellsPremium lithium iron phosphate chemistry ensures long service life, thermal stability, and consistent performance.
- Smart BMS with Bluetooth & RS485Built-in Battery Management System provides protection against overcharge, over-discharge, overload, short circuit, and temperature extremes, with mobile App monitoring.
- Wall-Mounted Sheet Metal HousingDurable metal enclosure with waterproof and dustproof design, optimized for indoor or protected outdoor installation.
- Long Cycle Life≥6000 cycles at 70% EOL, making it a true deep cycle 12.8V 314Ah lithium battery for daily use.
- OEM & ODM CustomizationFactory-direct customization options including branding, communication protocols, and enclosure design.
Core Advantages
Quick Installation
Wall-mounted design significantly reduces installation time and saves floor space.
Smart Battery Management System
Advanced BMS with real-time monitoring improves safety, performance, and system visibility.
High Cycle Life
Designed for long-term use, outperforming AGM and gel batteries in lifespan and depth of discharge.
Optimized Internal Structure
High-density cell layout maximizes usable energy while maintaining compact dimensions.
Deep Customization Capability
OEM/ODM services available for integrators, distributors, and project developers.
99.99% Device Compatibility
Compatible with most 12V inverters, solar charge controllers, and hybrid systems.
Applications (Typical Use Cases)
- Off-grid and hybrid solar systems
- Residential solar energy storage
- Telecom and monitoring equipment
- RV, marine, and mobile power systems
- Backup power for homes and small businesses
Parameters
| Shell Material | Sheet Metal |
| Rated Capacity | 4019Wh |
| Battery | BYD LiFePO4 |
| Lifespan | ≥ 6000 Cycles @70%EOL |
| Nominal Capacity | 314Ah |
| Nominal Voltage | 12.8V |
| Communication Mode | Bluetooth |
| Operating Temperature | -10℃~60℃ |
| Dimensions | 420×350×155mm |
| Weight | 31.25Kg |
Certificate
Wholesale Process
Quality Control
FAQ SECTION
Q1: How long will a 314Ah battery last?
A 12.8V 314Ah lithium battery can last anywhere from several hours to multiple days depending on load. With light usage, it can provide power for 1–2 days.
Q2: How long will a 314Ah battery run a refrigerator?
A typical 12.8V or inverter-driven refrigerator can run 24–48 hours on a fully charged 314Ah LiFePO4 battery, depending on efficiency and duty cycle.
Q3: Is a 314Ah lithium battery good for solar systems?
Yes. A 12.8V 314Ah LiFePO4 battery is excellent for solar energy storage due to high cycle life and deep discharge capability.
Q4: How many kWh is a 12.8V 314Ah battery?
This battery provides approximately 4019.2kWh, often rounded and searched as a 4kWh lithium battery.
Q5: Is a 314Ah battery enough for a home?
It is sufficient for partial backup or essential loads. Full-home backup usually requires multiple batteries.
Q6: Can a lithium battery run an air conditioner?
Yes, for short periods. Runtime depends on AC power consumption and inverter capacity.
Q7: Which 12V battery lasts the longest?
LiFePO4 batteries last significantly longer than AGM or gel batteries, often 5–10 times longer.
Q8: What is the downside of lithium batteries?
Higher upfront cost and the need for lithium-compatible chargers, though lifecycle cost is lower.
Q9: What is the 80/20 rule for charging?
Charging between 20% and 80% can help extend lithium battery lifespan, though full charges are safe when needed.
Q10: Is it safe to leave a lithium battery charging overnight?
Yes, when using a compatible charger and BMS-protected LiFePO4 battery.
Q11: How many solar panels are needed to charge a 300Ah battery?
Typically 600W–1000W of solar panels depending on sunlight hours and charging time expectations.
Q12: Do higher Ah batteries last longer?
Yes. Higher Ah means more stored energy, resulting in longer runtime at the same load.
Q13: What is better, AGM or lithium battery?
Lithium batteries offer longer life, lighter weight, faster charging, and deeper discharge capability.
Q14: Can a lithium battery catch fire when not in use?
LiFePO4 batteries are among the safest lithium chemistries and have a very low fire risk when properly managed.
Q15: Is it bad to keep lithium batteries fully charged?
Long-term storage at 100% is not ideal. For storage, 40–60% SOC is recommended.
Q16: How long will a lithium battery hold a full charge?
LiFePO4 batteries have very low self-discharge and can hold charge for months.
Q17: Do I need a fuse between the battery and inverter?
Yes. A properly rated fuse or breaker is strongly recommended for system safety.
Q18: How long will a 4 kWh battery last?
A 4kWh lithium battery can power a 300W load for about 10–12 hours or a 1kW load for around 3–4 hours.
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