CloudEnergy LiFePO4 Battery 12V 300Ah | 3.84kWh Deep Cycle Power
Engineered for professional energy solutions, the CloudEnergy 12V 300Ah LiFePO4 battery delivers 3.84kWh of reliable deep-cycle power. Featuring automotive-grade cells and integrated 100A BMS protection, this industrial-grade battery provides 6000+ cycles with a 10-year design lifespan – perfect for demanding solar installations, RV power systems, marine applications, and critical backup power.
Industrial-Grade Features
- Automotive-Grade Performance – Ultra-stable power output & thermal management
- 100A Smart BMS Protection – Overcharge/discharge/short-circuit prevention
- Military-Quality Casing – SPCC rust-proof steel enclosure (IP65 rated)
- Modular Power Expansion – Parallel/Series connectable (up to 48V/1200Ah)
- Premium Energy Density – 3.84kWh capacity at 1/3 weight of lead-acid batteries
Professional Applications
Solar Energy Storage
Off-grid & hybrid systems with 85% depth of discharge
RV/Marine Power
Vibration-resistant design for mobile installations
Backup Power Systems
Critical facility UPS with 15ms failover
Industrial Equipment
Golf carts, forklifts & telecom power
Technical Specifications
- Voltage: 12V DC
- Capacity: 300Ah (3.84kWh usable)
- Cycle Life: 6000+ at 80% DoD
- BMS: 100A continuous with temp monitoring
- Terminals: M8 corrosion-resistant
- Dimensions: 20.5″L x 9.1″W x 10.2″H
- Weight: 69 lbs (30% lighter than AGM)
- Certifications: UL 1973, CE, RoHS, UN38.3
Professional Support
Includes CloudEnergy ProSupport package:
24/7 Technical Assistance | 10-Year Warranty | System Design Consultation | Commercial Account Discounts
CloudEnergy LiFePO4 Battery 12V 300Ah Features
Cloudenergy 12V 300Ah LiFePO4 Battery Specifications
| Parameter | Value |
|---|---|
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah |
| Energy | 3840W |
| Standard Charge Voltage | 14.6V |
| Discharge Cut-off Voltage | 10V |
| Standard Charge Current | 50A |
| Max. Charge Current | 100A |
| Max. Constant Discharge Current | 100A |
| Peak Discharge Current | 120A @30s |
| Dimension | 365*320*160mm 14.37*12.59*6.29in |
| Weight | 28.5kg 62lb |
| Cycle Life | 6000+cycles |
| Charge Temperature | 0~60 °C |
| Discharge Temperature | -20~ 60°C |
| Storage Temperature | 10~ 45°C |
| hasMerchantReturnPolicy | 3-month free return and exchange policy |
CloudEnergy LiFePO4 Battery 12V 300Ah – Reliable Off-Grid Power for B2B
CloudEnergy’s 12V 300Ah LiFePO4 Battery delivers durable, high-capacity power for B2B off-grid and outdoor applications. Built with automotive-grade cells, a UL-certified safety system, and a 10-year lifespan, it’s the trusted choice for solar systems, RV fleets, marine setups, and more—backed by 24-hour customer support.
- Automotive-Grade Quality: UL-tested LiFePO4 cells for stable performance, built-in BMS (overcharge/over-discharge/short-circuit protection), and non-toxic renewable energy.
- Scalable Off-Grid Ready: Parallel/series connectable (max 1200Ah, 48V) for larger systems—ideal for solar homes, camping, sailboats, and backup power.
- Long-Lasting Durability: 6000+ cycles (10-year lifespan), 1/3 the weight of lead-acid, and SPCC rust-proof steel case for harsh environments.
- Broad B2B Applications: Perfect for RVs, marine vessels, golf carts, UPS systems, and off-grid solar—designed for business reliability.
24-Hour Customer Support: CloudEnergy’s team provides fast technical assistance and product answers. Contact us directly for bulk orders, customization, or deployment questions—we’re here to support your business needs.
CloudEnergy Packaging, Shipping & Service Policy
Why Choose CloudEnergy for Your Lithium Battery Needs?
- Industry-Leading Expertise – Specialized in LiFePO4 battery R&D and manufacturing since [year]
- Quality Assurance – Professional design team and strict quality control processes
- Flexible Customization – OEM/ODM services available with no MOQ requirements
- Advanced Manufacturing – Automated production using industrial-grade LiFePO4 cells
Secure Battery Packaging
All CloudEnergy lithium batteries are protected with military-grade packaging:
- Inner Protection – Custom blister trays secure each 100Ah LiFePO4 battery
- Double-Layer Cartons – Inner carton + UN-certified outer box with 2mm thick walls
- Safety Markings – Outer boxes feature waterproof, fireproof, and anti-crush warnings
- Final Reinforcement – PVC stretch film for moisture and impact resistance
Global Shipping Options
| Order Type | Shipping Method | Transit Time |
|---|---|---|
| Samples (1-2 units) | Express (DHL/FedEx) | 5-7 business days |
| Bulk Orders | Sea Freight (FOB/CIF) | 30-45 days after deposit |
Note: We provide freight forwarding assistance for all international shipments
Custom Battery Services
CloudEnergy supports complete OEM/ODM customization:
- Voltage (12V/24V/48V) and capacity adjustments
- BMS programming for charge/discharge parameters
- Connector types and cable customization
- Branding options (silk printing, laser engraving)
Our Service Commitment
Rapid Response
24-hour reply guarantee for all technical inquiries Priority Support
12-hour resolution timeline for customer claims
Extended Warranty
10-year quality guarantee on all LiFePO4 batteries (12.8V series)
Quality Assurance Process
Every CloudEnergy battery undergoes:
- 100% capacity testing
- BMS functionality verification
- Final inspection before packaging
FAQ
Q1: When I get the battery for the first time, does the battery need to be charged?
A: There is only 50% charged when you get the battery. You need to fully charge the battery.
Q2: How to charge the battery?
A:
Scheme 1: You can use a lithium iron phosphate 4-string (14.6V) charger to charge the battery pack.
Scheme 2: You can use photovoltaic solar panels to charge the battery through MPPT.
Scheme 3: You can use the inverter to charge the battery pack (note: the inverter needs a built-in AC to DC charging function)
Q3: How do I connect the lifepo4 battery in series or in parallel?
A:
1. Please use 14.2~14.6V charging voltage to fully charge all lifepo4 batteries individually;
2. Connect your batteries one by one in parallel, and leave them together for 12~24 hrs to automatically balance the voltages of two adjacent batteries.
And then, you can connect your batteries in series or/ and in parallel.
Note: The voltage must be consistent, allowing difference within 100 mV.
Q4: How to activate the battery when BMS cut it off for protection?
A: If the BMS has cut off the battery for protection, you need to cut of the load of the battery and put the battery aside for 30 mins.
Then the battery will automatically recover itself to normal voltage and can be used after fully charged.
