Mini Size 12V 300Ah Bluetooth LiFePO4 Lithium RV Battery
Mini size 12V 300Ah Bluetooth LiFePO4 lithium RV battery delivers high-capacity power in a compact, space-saving design. With 3840Wh of usable energy, it easily supports RV, marine, and off-grid systems that demand reliable, long-lasting performance.
Built with automotive-grade LiFePO4 cells, a smart 200A BMS, and built-in heating, this deep cycle lithium battery provides stable output and safe charging—even in cold weather—making it ideal for year-round RV travel.
Integrated Bluetooth monitoring allows real-time tracking via mobile app, while 5,000+ cycles and a 10-year warranty ensure dependable power, lower lifetime cost, and peace of mind on every journey.
Mini Size 12V 300Ah Bluetooth LiFePO4 Lithium RV Battery with 10-Year Warranty
Mini Size 12V 300Ah RV Lithium Battery – Big Power in a Compact Design
When space is limited but power demand is high, a mini size 12V 300Ah LiFePO4 lithium RV battery becomes the ideal solution.
The EG-12300-RV Bluetooth lithium battery is engineered for RV owners, marine users, and off-grid systems that need high capacity, compact size, and dependable performance.
Despite its space-saving design, it delivers massive energy, advanced safety, and year-round usability.
Built with automotive-grade LiFePO4 prismatic cells, an intelligent 200A smart BMS, and internal heating, this battery provides stable, worry-free power in both hot and cold environments—without the maintenance or weight of lead-acid batteries.
Strong Output with Advanced Smart BMS Protection
Power reliability matters most when your RV systems are under load.
That’s why this battery is built with a high-performance smart BMS rated up to 250A, allowing it to deliver up to 2560W of continuous output with stable voltage and smooth power flow.
Whether you’re running multiple appliances at the same time or dealing with sudden surge demands, the intelligent BMS actively manages current and voltage in real time. As a result, your devices stay protected, and the battery operates efficiently without stress or performance drops.
In addition, this deep cycle LiFePO4 battery supports 100% usable capacity (100% DOD & SOC) and delivers 5,000+ charge cycles, helping you maximize energy use while significantly reducing long-term replacement costs.
To ensure safe, worry-free operation in real-world RV and off-grid environments, the built-in BMS provides comprehensive protection against:
- High and low temperature cut-off
- Over-discharge and overcharge
- Over-current conditions
- Short circuit events
By actively preventing these common risks, the smart BMS extends battery life, safeguards your electrical system, and gives you confidence wherever the road—or water—takes you.
Stable and More Durable Metal Shell Design
Durability matters—especially in RV and marine environments where vibration, impact, and temperature changes are part of daily use.
That’s why this 12.8V 300Ah lithium RV battery features a rugged metal shell construction, delivering superior stability and long-term reliability.
Compared with fragile plastic housings, the metal enclosure provides stronger structural protection, better resistance to vibration and impact, and improved heat dissipation. This helps protect internal LiFePO4 cells and electronics during rough roads, off-road travel, and marine movement.
The battery is also equipped with solid metal grips for easier and safer handling, making installation and maintenance more convenient while reducing the risk of drops or damage.
In addition, RS485 communication support allows seamless integration with inverters, energy management systems, and monitoring devices—making this battery a smart choice for advanced RV, marine, and off-grid power setups.
Say goodbye to fragile plastic shells.
With a reinforced metal housing, you get greater durability, improved safety, and confidence that your battery is built to last—wherever your journey takes you
Bluetooth Monitoring – Smart Power Management at Your Fingertips
Managing power shouldn’t be a guessing game.
With built-in Bluetooth, this lithium RV battery connects directly to your smartphone, giving you real-time visibility and full control through iOS and Android apps.
From the app, you can instantly monitor:
- Live voltage and current data
- State of charge (SOC) at a glance
- Battery temperature in real time
- Charging and discharging status
Instead of relying on external meters or estimates, you always know exactly how your battery is performing. This makes it easier to plan energy usage, prevent over-discharge, and avoid unexpected power loss—especially when traveling off-grid or boondocking.
With clear, real-time insights, you stay in control of your power system and enjoy greater efficiency, confidence, and peace of mind on every trip.
Lead-Acid vs 12V 300Ah LiFePO4 Lithium Battery Comparison
Why RV & Marine Users Are Switching to LiFePO4
With one mini size 12V 300Ah lithium battery, you eliminate the complexity of multi-battery lead-acid systems while gaining more usable power, longer lifespan, and total peace of mind. Instead of managing several heavy batteries, you get a lighter, cleaner, and more reliable power system that’s built for modern RV, marine, and off-grid lifestyles
3840Wh High-Capacity Energy in a Mini Size Battery
This 12V 300Ah lithium RV battery offers a full 3840Wh of usable energy, allowing you to power daily essentials with ease:
- RV refrigerators and lighting
- Coffee makers and microwaves
- Water pumps and small appliances
Thanks to its high energy density and compact design, you can achieve the same or greater capacity with fewer batteries, reduced cabling, and a cleaner installation. This means more usable space, lower system complexity, and improved efficiency—especially valuable in RVs, camper vans where every inch of space matters.
Built-In Heating for Reliable Cold-Weather Charging
Cold temperatures are one of the biggest challenges for lithium batteries—especially for RV and marine users who travel year-round.
This heated Lithium 12V 300Ah LiFePO4 RV battery is designed to eliminate that concern with an integrated internal heating system.
When ambient temperatures drop below the safe charging threshold, the heater automatically activates to warm the cells to an optimal range before charging begins. This ensures safe, stable charging even in sub-zero conditions, preventing lithium plating, capacity loss, and long-term battery damage.
As a result, you can confidently rely on this battery for:
Winter RV travel and cold-climate camping
Marine applications in low-temperature environments
Early-morning or overnight charging when temperatures are lowest
By maintaining proper charging conditions in cold weather, the built-in heating system protects battery health, preserves full capacity, and extends overall lifespan—so you get dependable power all year round, without compromises.
Specifications
Ideal Applications
This mini size 12V 300Ah lithium RV battery is perfect for:
- RVs and camper vans
- Marine and boat power systems
- Off-grid cabins and solar setups
- Backup and mobile power systems
With 5,000+ cycles, IP65 protection, and a 10-year manufacturer warranty, it delivers reliable energy for years to come.
Frequently Asked Questions(FAQ)
Q1: Is this mini size 12V 300Ah LiFePO4 RV battery safe?
Yes. LiFePO4 is one of the safest lithium chemistries available, and the built-in smart BMS provides comprehensive electrical and thermal protection.
Q2: Can this battery be used in a 48V system?
Yes. You can connect up to four batteries in series to build a 48V lithium system.
Q3: How many batteries can be connected together?
Up to 4 in series or 4 in parallel, but not both at the same time.
Q4: Is it compatible with solar charging?
Yes. It works with solar panels, alternators, generators, and LiFePO4 chargers. Recommended charge voltage is 14.2V–14.6V.
Q5: What is the factory lead time?
Typically 7–15 working days, depending on order quantity.
Q6: What does the 10-year warranty include?
The warranty covers defects in materials and workmanship under normal use. Support includes repair, replacement, or technical assistance according to warranty terms.
Looking for a Reliable LiFePO4 RV Lithium Battery Supplier?
If you are a wholesaler, distributor, or project buyer, this mini size 12V 300Ah Bluetooth LiFePO4 lithium RV battery is designed to give you a strong competitive edge in your market.
We offer factory-direct pricing, stable production capacity, and consistent quality control, with support for bulk orders, OEM/ODM customization, and long-term supply partnerships. Fast lead times and professional technical support help you close deals with confidence.
Send us your inquiry today to receive wholesale pricing, MOQ details, lead time, and technical specifications.
Let’s build a reliable, profitable partnership for your RV, marine, and off-grid battery business.
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Product & Packaging Details
Q: Do batteries include protection circuits（BMS) and connectors?
A:Protection: We supply batteries with BMS built in Protection Circuit Modules (PCM).
Connectors: We normally use standard like anderson,M8 lugs,Fast plugs or depends on OEM customer's demends.
Q: Are batteries Grade-A and brand new?
A: Yes, we use 100% brand new, Grade-A cells in all our batteries.
Q: Can you print our logo on the batteries?
A: Yes, we offer free custom logo printing with a minimal MOQ requirement.
Q: What is your standard packaging? Can it be customized?
A: Our standard is a white box per battery. We fully support customized packaging, including carton box and logo design.
Yes. EGbatt is a manufacturer located in Shenzhen, Guangdong, China. It designs and produces LiFePO4 battery packs for energy storage, electric forklifts, marine applications, golf carts, RVs, and UPS systems.
Based on automated production technology, the current product lead time is 15-25 days.
The company has strategic cooperation agreements with top manufacturers like EVE and REPT, and insists on using A+ tier One lithium iron phosphate cells for its solar batteries.
For 48V inverters, compatible brands include Victron Energy, Goodwe, Studer, Solis, LuxPower, and others. For high-voltage three-phase inverters, compatible brands include Atess, Solinteg, SAJ, Goodwe, and Solis.
EGbatt offers dealer customers a 10-year warranty and technical service for its energy storage battery products.
DoD describes how much of the battery's capacity has been used. A DoD of 100% means the battery is completely empty, while 0% means it is full.
SoC reflects the battery's charge level. A SoC of 100% means the battery is full, and 0% means it is empty.
C-rate, or power factor, indicates how quickly a battery can be charged or discharged relative to its capacity. A rating of 1C means the battery can be fully charged or discharged in one hour.
The battery uses Lithium Iron Phosphate chemistry and provides a cycle life of over 6,000 cycles at 90% Depth of Discharge, and over 10 years at one cycle per day.
kW (kilowatt) is a unit of power, measuring the rate of energy production or consumption. kWh (kilowatt-hour) is a unit of energy, measuring the total amount of work done or energy used over time.
EGbatt home batteries are suitable for both indoor and outdoor installation (depending on the model's protection level) and offer floor-standing or wall-mounted options. Common locations include garages, attics, or under eaves.
This depends on the load. As a realistic example, a 10kWh battery could run ten 100-watt light bulbs for 12 hours without recharging.
The number varies based on home size, energy consumption history, and personal goals (like which devices to run during an outage). For most systems, 2 or 3 batteries are installed. A detailed discussion of your needs is recommended for an accurate assessment.
Yes, it is possible, but it requires careful planning and significant investment. A true off-grid system needs a large enough solar array and sufficient battery storage to sustain your lifestyle. Cost and having an alternative energy source for when solar charging isn't possible are key considerations.
No. EGbatt focuses on building long-term relationships with business partners like battery distributors, solar equipment dealers, and installation contractors worldwide, not direct sales to end consumers.
EGBATT Battery Compatibility with Inverters
Perfect Matching with Mainstream Hybrid and On-grid Inverters
EGBATT lithium battery systems are tested for seamless compatibility with a wide range of inverter brands across global markets. Whether for residential, commercial, or utility-scale applications, our batteries support multiple communication protocols (CAN/RS485) and work with both low-voltage (40–60V) and high-voltage (100–1500V) inverter platforms.
- Low-Voltage System Compatibility (40–60V)
Low-voltage systems typically operate in the 48V-60V range and are widely used in home off/grid-connected solar systems. EGBATT lithium batteries offer seamless compatibility with a wide range of leading inverter brands in this range, including:
Deye, Growatt, GoodWe, ZZPower, Solis, Sinexcel, SRNE, Schneider Electric, Megarevo, AISWEI, SMA, Luxpower, Victron Energy, Afore, Hoymiles, INVT, Sofar, OutBack Power, SolaX Power, tbbpower, Sacolar, Sunsynk, Sosen, SMD Solar, Must, SOROTEC, Sunman, Voltronic Power, SAJ, and more. - High-Voltage System Compatibility (100–1500V)
High-voltage energy storage systems generally operate in the voltage range of 150V-1000V and are adapted to high-power inverters for commercial and industrial energy storage systems (80kWh-200kWh and above). EGBATT high-voltage lithium battery systems are fully compatible with leading inverter brands within this range, including:
Sol-Ark, INVT, Sinexcel, Luxpower, SClinTeg, Shanghai Nenergy, Deye, Growatt, Xina Electric, Hoymiles, Sunsynk, Hopewind, Solis, SOSEN, Megarevo, EcoCod, GoodWe, Sunways, Jingshi Technology, Kehua Tech, AISWEI, KOYOE, Sermatec, Afore, and more.
We offer integration support and testing for most mainstream hybrid and on-grid inverters. Contact EGBATT for compatibility details and custom solutions.
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