12V 300Ah RV lithium iron phosphate battery features lightweight design, 90% deep discharge, built-in smart BMS, perfect for small & medium RV, camper van daily camping. Fast solar/alternator/shore charging, long lifespan, reliable off-grid power solution.
Meta Description
12V 300Ah RV lithium iron phosphate battery features lightweight design, 90% deep discharge, built-in smart BMS, perfect for small & medium RV, camper van daily camping. Fast solar/alternator/shore charging, long lifespan, reliable off-grid power solution.
Product Overview
This 12V 300Ah LiFePO4 RV battery is tailor-made for small and medium-sized RVs, camper vans and short-distance outdoor camping scenarios, with a rated energy storage of 3.84kWh. Compared with traditional lead-acid batteries, it features greatly reduced weight and higher space utilization, perfectly adapting to the compact installation environment of RVs. Equipped with A-grade LiFePO4 cells and intelligent BMS protection system, it supports 90% deep discharge without power waste. It can stably drive conventional RV electrical appliances such as parking air conditioners, refrigerators, lighting and induction cookers, serving as a cost-effective choice for daily leisure camping and mild off-grid power use.
Core Advantages
Lightweight & Fuel-saving
It is more than 60% lighter than lead-acid batteries of the same capacity, greatly reducing the overall weight of the RV, lowering driving fuel consumption and body load, improving driving stability, and saving RV storage and modification space.
Long Cycle Life & Durability
Adopting high-quality A-grade LiFePO4 cells, it has a conventional cycle life of over 6000 times. It can be stably used for 8-10 years in daily household camping scenarios without frequent replacement, greatly reducing long-term use costs.
High DOD & High Power Utilization
It supports 90% deep discharge, far exceeding the 50% discharge limit of lead-acid batteries. The 300Ah nominal capacity can be fully utilized, doubling the actual available power under the same specifications and meeting the all-day basic parking power demand.
3-Way Fast Charging
It supports three charging modes: solar charging, vehicle generator charging and mains charging. It can self-charge during driving, parking and sunny days, eliminating charging waiting anxiety and adapting to various outdoor power scenarios.
Technical Specifications
| Specification Item |
Parameters |
| Nominal Voltage |
12.8V |
| Nominal Capacity |
300Ah |
| Rated Energy |
3840Wh |
| Cycle Life |
6000+ Cycles (80% DOD) |
| Max Discharge Depth |
90% |
| Built-in BMS |
200A Smart Protection Board |
| Max Charge Current |
100A |
| Max Discharge Current |
200A |
| Working Temperature |
-20℃ ~ 60℃ |
| IP Rating |
IP54 |
| Certifications |
CE, UN38.3, MSDS |
| Warranty |
5-Year Professional Warranty |
Application Scenarios
Suitable for self-propelled small and medium-sized RVs, trailer RVs and short-distance camping parking power supply. It can stably drive parking air conditioners, vehicle refrigerators, LED lighting, water pumps, small induction cookers and other equipment. It is also compatible with household off-grid solar energy storage and small outdoor power backup scenarios, serving as the preferred energy storage device for entry-level RV users.
FAQ
Q1: What high-power appliances can the 12V 400Ah battery support?
A1: It can stably support 12V/24V parking air conditioners, electric water heaters, microwave ovens, induction cookers and other high-power RV appliances, meeting the full-scene power needs of outdoor camping.
Q2: Is it suitable for long-term off-grid camping without mains power?
A2: Yes. The 5120Wh large capacity supports 7-10 days of basic off-grid power use with solar charging cooperation, completely independent of camp mains power supply.
Q3: Can the battery work normally in low-temperature environments?
A3: It supports normal discharge at -20℃ low temperature, adapting to winter alpine camping and northern low-temperature outdoor scenarios, with excellent temperature adaptability.
Q4: Does the battery support Bluetooth monitoring?
A4: Optional Bluetooth 5.0 monitoring function is available. Users can check real-time power, voltage, temperature and charge-discharge data via mobile APP, realizing intelligent power management.
Q5: How to extend the service life of the 400Ah battery?
A5: Adopt 20%-80% conventional discharge range, match with professional solar controller and inverter, and avoid long-term full charge and deep over-discharge, which can extend the cycle life to more than 8000 times.
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