Product Details
xMWNKDS 12.8V 340Ah LiFePO4 Battery
4S1P Deep Cycle Lithium Iron Phosphate Battery
For Campers, Golf Cart, Off-Road, Off-Grid Solar, Home Energy Storage & Backup Power
The MWNKDS 12.8V 340Ah LiFePO4 Battery is a high-capacity deep cycle lithium iron phosphate battery designed for campers, RVs, golf carts, off-road vehicles, off-grid solar systems, home energy storage, outdoor power, and backup power applications.
Built with 3.2V LiFePO4 cells, a built-in 4S 100A smart BMS, and a durable waterproof-style case, this battery provides stable power output, long cycle life, high safety, and convenient installation for both mobile and stationary energy systems.
With 12.8V nominal voltage and 340Ah large capacity, it delivers approximately 4352Wh of energy, making it a reliable power solution for long runtime and demanding energy storage needs.
Key Features
12.8V 340Ah High Capacity
The MWNKDS 12.8V 340Ah battery provides large energy storage capacity for outdoor, solar, and backup power use.
Approximate energy:
12.8V × 340Ah = 4352Wh
Suitable for:
RV / Camper
Golf Cart
Off-Road Vehicle
Off-Grid Solar System
Home Energy Storage
Backup Power
Outdoor Power Supply
Built-in 4S 100A Smart BMS
The built-in smart BMS helps protect the battery and improve long-term reliability.
Protection functions include:
Overcharge Protection
Over-discharge Protection
Overcurrent Protection
Short Circuit Protection
Temperature Protection
Cell Balance Management
BMS Rating: 100A
Power Supply: 1200W
Strong Discharge Performance
Designed for stable output and demanding power applications.
Performance highlights:
Continuous Discharge Current: 100A
Instantaneous Discharge Current: 300A
Maximum Charging Current: 100A
Working Voltage Range: 8.0V–14.6V
Charging Voltage: 14.6V
6000+ Long Cycle Life
The battery supports 6000+ cycles under proper operating conditions, helping reduce replacement costs and providing long-term energy storage value.
Benefits:
Longer service life
Stable power output
Lower maintenance cost
Reliable deep cycle performance
Ideal for solar and off-grid systems
Durable Waterproof-Style Case
The battery uses a strong black protective case with portable rope handles and a top battery display.
Product details:
Waterproof-style shell
Portable carry handles
M6 connection terminals
Battery capacity / voltage display
Compact rectangular design
Easy installation and daily use
Note: The case is designed for outdoor protection, but the battery should not be submerged in water.
Product Specifications
| Item | Specification |
|---|---|
| Brand | MWNKDS |
| Product Name | 12.8V 340Ah LiFePO4 Battery |
| Battery Type | Lithium Iron Phosphate / LiFePO4 |
| Cell Type | Built-in 3.2V LiFePO4 Cells |
| Configuration | 4S1P |
| Nominal Voltage | 12.8V |
| Rated Capacity | 340Ah |
| Approx. Energy | 4352Wh |
| Built-in BMS | 4S 100A Smart BMS |
| Power Supply | 1200W |
| Maximum Charging Current | 100A |
| Continuous Discharge Current | 100A |
| Instantaneous Discharge Current | 300A |
| Working Voltage Range | 8.0V–14.6V |
| Charging Voltage | 14.6V |
| Overcharge Protection Voltage | 14.6V ±0.05V |
| Over-discharge Protection Voltage | 8.0V ±0.05V |
| Battery Temperature Protection | 60°C ±5°C |
| Cycle Life | 6000+ Cycles |
| Charging Temperature | 0°C to 45°C |
| Discharge Temperature | -20°C to 60°C |
| Storage Temperature | -20°C to 65°C |
| Weight | About 23.5kg |
| Size | 345 × 190 × 245mm |
| Application | Campers, RV, Golf Cart, Off-Road, Solar, Home ESS, Backup Power |
Application Scenarios
RV & Camper Power
Perfect for campers, RVs, caravans, and travel vehicles. It can power lighting, small appliances, fans, refrigerators, communication devices, and inverter systems when used with compatible equipment.
Golf Cart & Off-Road Vehicle
Suitable for golf carts, off-road vehicles, touring vehicles, and outdoor mobile power systems that require stable 12V-class energy output.
Off-Grid Solar Energy Storage
Ideal for solar energy storage systems, off-grid cabins, home backup systems, and renewable energy storage projects.
Backup Power
A reliable battery solution for emergency backup, outdoor energy storage, home energy systems, portable equipment, and power supply applications.
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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