Shenzhen Bely Energy Technology Co., Ltd.
                                                                                                           
Verified Supplier
10 Years
Since 2016
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12V 300Ah LiFePO4 Battery with 3840Wh Capacity and 3000+ Cycle Life for RV Solar Marine Applications

Price Negotiable
Price: Negotiable
MOQ: 10pcs
Delivery Time: 7-14 days for samples, 35-60days fpr mass production
Brand: Bely
Product Description
Product Overview
This 12V 300Ah LiFePO4 rechargeable battery delivers reliable power for RV, marine, and solar applications. With 3840Wh capacity and 3000+ cycle life, it provides long-lasting performance with enhanced safety features.
Technical Specifications
ParameterValue
Nominal Voltage12.8V
Capacity300Ah / 3840Wh
Dimensions526mm × 235mm × 217mm/237mm
Weight32.5 kg
Working Voltage Range10-14.6V
Recommended Charging Current80A
Max Charging Current150A
Recommended Discharge Current120A
Max Discharge Current150A (≤25 mins)
Peak Discharge Current200A (≤20 sec)
Charging Temperature0-55°C
Discharging Temperature-20 to 60°C
Cycle Life≥3000 cycles
Internal Impedance≤20mΩ
Protection ClassIP65
Battery Cell TypePrismatic
12V 300Ah LiFePO4 battery showing product design and dimensions
Key Features & Benefits
  • Long cycle life - up to 3000 cycles at 100% depth of discharge
  • No memory effect - maintains consistent performance
  • High energy density - compact design with substantial power
  • Pollution-free - environmentally friendly chemistry
  • High discharge rate - supports demanding applications
  • Light weight - only 32.5 kg for easy installation
  • Built-in Battery Management System (BMS) for safety
  • Excellent consistency with low self-discharge
  • Short-circuit protection for reliable operation
Battery Management System
The integrated BMS provides comprehensive protection including under-voltage cutoff, over-voltage protection, temperature monitoring, and automatic system recovery when issues are resolved.
Applications
Ideal for motorhomes, RVs, marine vessels, solar power systems, electric vehicles, camping equipment, emergency power supplies, and off-grid applications.
Technical diagram showing LiFePO4 battery internal structure and connections
Safety Instructions
  • Do not open battery without consulting dealer - voids warranty
  • Use only for intended applications
  • Installation by qualified specialists only
  • Protect from direct sunlight and temperatures above 60°C
  • Use compatible chargers only
  • Observe proper polarity during installation
  • Maximum 4 batteries in parallel configuration
  • Keep batteries dry and clean at all times
Quality Assurance & Certifications
Our batteries undergo 100% PCM testing and capacity verification. Certified with CE, FCC, ROHS, UN38.3, and MSDS standards.
Warranty & Support
2-year warranty from shipment date with replacement for manufacturing defects. Fast delivery available within 10 days for stock items.
Frequently Asked Questions
Q: Can I order samples?
A: Yes, sample orders of 1-10 pieces are available for quality testing.
Q: What is your MOQ?
A: Low MOQ available with 1 piece for sample checking.
Q: Can you print my logo?
A: Yes, custom logo printing available with design confirmation.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Bely Energy Technology Co., Ltd.
Location 4/F, No. 1 Building, HuaWei KeGu Industry Park, Dalingshan Town, Dongguan, Guangdong, China. P.C.: 523000
Contact Person Sales department

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