12V 300Ah LiFePO4 RV Battery with 6000+ Cycles 90% Deep Discharge and Built-in BMS for Off Grid Solar
Price:
Negotiable
MOQ:
2 unit
Delivery Time:
7-15 working days
Brand:
Chalong Fly
Product 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.

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: Can this 12V 300Ah battery replace the original RV lead acid battery directly?
A1: Yes. It is a plug-and-play replacement for 12V lead-acid batteries, no complicated wiring modification is required, compatible with most 12V RV original circuits, inverters and solar controllers.
Q2: How long can the 12V 300Ah battery run an RV parking air conditioner?
A2: It can support a 12V low-power RV air conditioner to work continuously for 4-6 hours under full charge, meeting daily night camping power demand.
Q3: Is parallel connection supported for capacity expansion?
A3: Yes. It supports up to 10 units parallel connection for capacity expansion, which can meet the power demand of long-term off-grid camping after capacity upgrade.
Q4: Does the battery have overheating and short circuit protection?
A4: Absolutely yes. The built-in intelligent BMS provides full protection including overcharge, overdischarge, overcurrent, short circuit and high temperature protection, ensuring safe use in RV vibration and high-temperature environments.
Q5: Do I need special maintenance for daily use?
A5: No maintenance required. The sealed integrated design avoids water replenishment and regular inspection, realizing fool-proof daily use.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hunan Chalong Fly Technology Co., Ltd.
Location
Unit 5-531 Huanghua Comprehensive Bonded Zone, No.109 Dayuan Rd, Changsha, Hunan, China
Contact Person
Carric Chen