While a generator can power appliances, its noise, exhaust fumes, and the need to carry fuel can spoil the tranquility of camping.However, this off-grid lithium battery can quietly and reliably power lights, refrigerators, fans, routers, water pumps, and inverter appliances.You can work, cook, and relax as you please, without bothering other campers. There's no need to carry extra fuel either.
VATRER POWER LiFePO4 12V 300Ah Lithium Iron Phosphate Battery with Sel
VATRER POWER LiFePO4 12V 300Ah Lithium Iron Phosphate Battery with Self-Heating (3840Wh / 200A BMS / 2560W) | Japanese App Connectivity, -20℃ Charging Support
- "Real-time battery status monitoring via app" The VATRER POWER 24V heating battery activates its heating pad when connected to a charger at temperatures below 0°C. Heating stops when the battery reaches 5°C, and normal charging resumes. The charging temperature range is -20°C to 50°C, surpassing lead-acid batteries' -10°C to 35°C. This feature allows the LiFePO4 battery to be used flexibly and conveniently, unconstrained by the working environment.
- "Self-heating function for full charge even in winter" The 12V 300Ah self-heating battery activates its heating pad when connected to a charger at temperatures below 0°C. Heating stops when the battery temperature reaches 5°C, and the battery begins charging officially. It supports a charging temperature range of -20°C to 50°C. This feature allows the LiFePO4 battery to be used more flexibly and conveniently, unconstrained by seasonal or working environment limitations.
- "200A BMS & 5000+ cycle ultra-durable design" The 12V 300Ah LiFePO4 battery has a built-in 200A BMS that protects against overcharge, overdischarge, overcurrent, and short circuits with an excellent low self-discharge rate. A high-temperature cutoff function prevents charging at temperatures exceeding 167°F (75°C). Additionally, a low-temperature cutoff protection function prevents battery damage in cold environments.
- "Perfect replacement for traditional lead-acid batteries" The 12V 300Ah LiFePO4 battery achieves over 5000 cycles, compared to 300-500 cycles for lead-acid batteries. The lifespan of a LiFePO4 battery is 8-10 times that of a standard lead-acid battery. Furthermore, LiFePO4 batteries are 30% lighter than lead-acid batteries of the same capacity, making them easier to carry. They are a perfect replacement for high-capacity portable power sources and lead-acid/AGM batteries of similar capacity. Our batteries offer high cost-performance and are more affordable in the long run.
- "Expandable for increased power and wide range of applications" The 12V 300Ah LiFePO4 battery can achieve higher voltages (24V / 36V / 48V) and greater capacity (up to 48V). It can be used freely whether tilted or stacked, making it suitable for various situations. This portable power source LiFePO4 battery is applicable for disaster preparedness backup batteries, lighting, digital cameras, electric bicycles, underwater lights, fish finders, RVs, and more. Note: This battery is suitable for electrical energy storage and cannot be used as a power battery.
Estimated delivery Nov 07 and Nov 12. Order within .
12V 300Ah Self-Heating LiFePO4 Battery
When you try to power a refrigerator, lights, water pump, and inverter with a small battery bank, you often find yourself constantly calculating power consumption, wondering "how much longer will it last?" no matter where you stop.
However, with the Vatrer 12V 300Ah self-heating lithium battery, its large capacity of 3,840Wh and stable output of up to 2,560W allow you to enjoy a relaxed stay at campsites or completely off-grid locations, without having to compromise on essential power.

Self-Heating x LiFePO4: The Strongest Combination! Reliable Power in Harsh Environments
Charging a standard lithium battery in temperatures below 32°F (0°C) can damage the internal cells.This battery features a built-in 90W heating system that automatically activates when the temperature drops below 32°F (0°C) and stops heating when it reaches 41°F (5°C). This allows for safe recharging.You can confidently charge your battery during winter RV trips, stays in mountainous areas, hunting seasons, and even in sub-zero off-grid early mornings.

Superior BMS: Leader in Battery Management Systems
When a refrigerator compressor starts up or multiple appliances are used simultaneously, a small battery might experience a voltage drop and shut down.However, this Vatrer 12V 300Ah lithium battery, with its built-in 200A BMS, maintains a stable output and provides robust protection against overcharge, over-discharge, overcurrent, short circuits, and temperature issues.Furthermore, its automatic cell balancing feature ensures that LiFePO4 cells degrade evenly over extended use, providing reliable power at all times.

Choose to Suit Your Needs, Diverse Charging Methods
Power isn't always available at campsites, especially when traveling to remote locations.However, this 12V 300Ah lithium battery can be easily charged using a 14.6V LiFePO4 charger, a suitable solar charge controller, or a vehicle's DC-DC charger.Charge it overnight, store solar power during the day, and even charge it while driving. Power up anytime, anywhere, to match your travel style.

Essential for Operational Efficiency! Optimize Power Usage with App Integration
Before spending the night or operating high-power devices, open the Vatrer app to instantly see your remaining energy.Bluetooth monitoring provides real-time display of the 300Ah lithium battery's charge status, voltage, current, temperature, and battery health. You can smartly determine when to charge and how much to conserve power, without needing to open storage compartments.

Switch Freely Between Diverse Charging Methods in Your RV
Traditional lead-acid batteries have limited usable capacity and require frequent maintenance. Neglecting them can lead to premature degradation.However, this 300Ah lithium battery supports 80% to 100% depth of discharge and boasts a cycle life of over 5,000 cycles. It allows you to maximize power extraction within the limited space of your RV.You'll be free from the hassle of checking fluid levels, cleaning terminals, or replacing batteries every few years, ensuring your valuable equipment lasts longer.

Expandable Battery Bank for Future Peace of Mind
While a single battery might suffice for your current trailer, you might desire more capacity in the future for a larger cabin or a full-fledged solar system.This off-grid lithium battery supports configurations of up to 4 series and 4 parallel. Combined, it can create a large-scale system of up to 51.2V and 1,200Ah, with a storage capacity of 61.44kWh.You can start with a simple 12V setup and expand later by simply adding more batteries, eliminating the need to replace your entire battery bank.

Freely Adjust Angle to Suit Installation Environment
RV storage spaces are harsh environments exposed to dust, moisture, vibration, and splashes.However, this battery has an IP65 protection rating, providing excellent defense against dust and water splashes. It's perfect for covered RV storage compartments, trailers, fishing shacks, and fixed off-grid installations.Spend less time worrying about changing weather conditions and more time enjoying your travels—that's the peace of mind this battery offers.

Preserving the Tranquility of Off-Grid Living
Technical specifications
FAQs
The case dimensions of this Vatrer 12V 300Ah lithium battery are approximately 38.4 × 19.4 × 24.8 cm, its weight is approximately 24.8 kg, and its terminals are M8 type.
Before installation, please be sure to check the following points:
- Internal dimensions of the battery tray (especially width, depth, and height)
- Vertical clearance (interference with the lid or top plate)
- Cable routing space (bending radius and slack for cables connected to M8 terminals)
If necessary, we recommend measuring the available space inside the tray yourself.
Yes, replacement is possible. However, please be sure to observe the following points:
- Maintain the RV (recreational vehicle) system voltage at 12V.
- Select cables and protective devices (fuses, circuit breakers, etc.) with a rating that can handle a maximum of 200A.
- Adjust the charger settings to the LiFePO4 (lithium iron phosphate) dedicated profile (14.2V to 14.6V).
- Be sure to disable (turn off) the charger's equalization mode and desulfation mode. These modes are not compatible with lithium batteries and may damage the battery.
An inverter with a continuous output of 2,000W is suitable.
When operating at 90% efficiency, the current consumption will be approximately 174A, which is within this battery's BMS limit of 200A.
However, avoid prolonged use approaching the peak output of 2,560W.
It depends on the charging current.
- For 20A → approximately 15 hours
- For 40A → approximately 7.5 hours
- For 70A → approximately 4.3 hours
A 70A LiFePO4 dedicated charger offers a good balance between charging speed and cost, making it a recommended choice. (Note: The actual time may vary depending on the battery level, charger efficiency, ambient temperature, etc.)
- A solar panel of 800W to 1,000W, when used with an MPPT controller, can recover most of the battery's full capacity (3,840Wh) in a single day under good sunlight conditions.
- On the other hand, a 400W system can be expected to generate approximately 1.4 to 1.7kWh, which is more suitable for "topping up" the battery rather than a full charge.
- We recommend choosing the panel capacity according to your usage patterns (daily consumption) and sunlight hours.
No, it does not consume power.
The heater (90W) in the Vatrer 12V 300Ah self-heating lithium battery only operates when both of the following conditions are met:
- Charging current is above 10A
- Temperature drops to below 32°F (approx. 0°C)
The heater stops when it reaches 41°F (approx. 5°C), so the battery will not consume power on its own when the vehicle is parked and not charging.
No, you cannot.
Within the same system, you must use only Vatrer 12V 300Ah self-heating lithium batteries.
Mixing batteries with and without heating functions, or different types/specifications of lithium batteries, can lead to imbalanced charging/discharging, uneven charging, or premature system shutdown.
No, you cannot.
This off-grid lithium battery is designed for deep cycle (energy storage) applications and is not intended for engine starting. It does not have a CCA (Cold Cranking Amps) rating.
Please use a dedicated starter battery for starting engines or generators.
Yes, it is possible.
For a fully charged 300Ah (12V) battery:
- A 1,500W load (e.g., microwave) can run for approximately 2.3 hours
- A 1,200W load (e.g., small air conditioner) can run for approximately 2.9 hours
continuously.
However, RV air conditioners draw a large surge current when starting, so we recommend installing a soft starter to mitigate the initial shock.
Also, the actual operating time may vary depending on the inverter's efficiency, battery condition, ambient temperature, and other factors.
Store according to the following points:
- Maintain battery charge between 30% and 50%.
- Disconnect from load (device) and charger.
- Check monthly and recharge if charge falls below 30%.
- Maintain storage temperature between 14°F and 122°F (approx. -10°C to 50°C).
- Protect M8 terminals (we recommend using terminal covers or electrical tape to prevent corrosion and short circuits).


