Humsienk 12V 310Ah 200A BMS LiFePO4 Battery
🔥Why Choose Humsienk 12V 310Ah 200A BMS LiFePO4 Battery?
✅ More Power – 3,968Wh capacity, 15,000+ deep cycles, and Grade A+ LiFePO4 cells for ultra-long-lasting performance.
✅ Ultimate Safety – Built-in 200A Smart BMS with overcharge, over-discharge, short-circuit, and overheating protection, ensuring worry-free operation.
✅ Compact & Powerful – Dimensions: 20.51 × 8.70 × 9.37 inches (52.1 × 22.1 × 23.8 cm), Weight: 61.73 lbs (28 kg), designed for flexible installation in RVs, marine, solar, and backup systems.
✅ Reliable in Extreme Conditions – Operates seamlessly in -4°F (-20°C) to 158°F (70°C), with a low-temperature charging cutoff for enhanced battery protection.
✅ Expandable Energy Storage – Scale up to 40.96kWh (4S4P configuration), perfect for off-grid solar, RVs, marine, and home backup power.
✅ Certified & Reliable – Fully compliant with SDS, UN38.3, FCC, CE, ROHS, and UL safety standards, ensuring top-tier performance and durability.
📌 Click "Description" below for full details! 🚀
🔋 High-Performance & Long-Lasting Power
The Humsienk 12V 310Ah LiFePO4 Battery delivers an outstanding 3,968Wh capacity and a standard 12.8V output. Built with Grade A+ LiFePO4 cells, it guarantees an impressive 15,000+ cycle lifespan, significantly outlasting traditional lead-acid batteries. Certified by SDS, UN38.3, FCC, CE, ROHS for safety and reliability.
🛡️ Built-in 200A Smart BMS Protection
Equipped with a high-performance 200A BMS, this battery ensures overcharge, over-discharge, short-circuit, and overheating protection. The system automatically disconnects when the discharge current exceeds safe limits, safeguarding your power system.
📏 Compact & Space-Saving Design
Despite its powerful output, the Humsienk 310Ah LiFePO4 battery is designed for maximum energy density while maintaining portability. Dimensions: 20.51 x 8.70 x 9.37 inches (52.1 x 22.1 x 23.8cm), Weight: 61.73lbs (28kg), making installation flexible and hassle-free.
❄️ Reliable in Extreme Conditions
Engineered to perform in harsh environments, the battery operates seamlessly in temperatures ranging from -4°F (-20°C) to 158°F (70°C). For added protection and longevity, the low-temperature cutoff prevents charging in freezing conditions.
🔗 Expandable Energy Storage
Customize your power needs by connecting up to 4 batteries in series or parallel, achieving a massive 40.96kWh storage capacity—perfect for RV, solar, off-grid systems, marine, and backup power solutions.
✔️ Hassle-Free Installation & Perfect Fit
Designed to seamlessly fit standard battery compartments, eliminating the need for costly modifications.
💡 5-Year Warranty & Lifetime Support
We stand by our product quality. Enjoy a 5-year warranty and reach out anytime for expert support and guidance.
At Humsienk, we are committed to providing our customers with a smooth, efficient, and safe shipping experience.
Shipping Methods and Time
We offer two shipping methods to meet your needs, whether you're ordering a single battery or bulk quantities. All shipping is processed through reliable carriers, including UPS Ground & FedEx .
- Processing time: 1-2 business days
- Shipping time: 2-5 business days
The shipping will delay for some objective or uncontrolled reasons. We will notice our customer ahead for delays.
Please read our shipping policy page for more details.
Contact Us
If you have any questions or concerns about shipping, delivery, or the handling of your order, please don’t hesitate to reach out to our customer support team:
- Email: service@humsienk.com
- Phone: (+86)755 3452 3348
30-Day Return Policy
We want you to be completely satisfied with your Humsienk purchase. That's why we offer a hassle-free 30-day return policy.
Refunds:
Once we receive your approved return, we'll inspect the item and issue a full refund within 3 business days to your original payment method. Processing times by your bank or credit card company may apply.
Order Cancellation:
We typically process orders within 1-2 business days. To cancel an order, contact us as soon as possible at service@humsienk.com.
If the order has already shipped, we'll process a refund within 3 business days of receiving the returned product.
Contact Us:
For questions about our return policy or to initiate a return, please contact us at service@humsienk.com.
Tips: Please read our Return and Refund policy page for more details.


🔋 Humsienk 12V 310Ah LiFePO4 – Power Without Limits
At Humsienk, we believe energy should be reliable, efficient, and built to last. Our 12V 310Ah LiFePO4 battery is designed for those who demand high-performance power solutions—whether for RVs, solar setups, marine applications, or backup energy systems.
With EV-grade A+ cells, 15,000+ cycles, and a built-in 200A Smart BMS, this battery delivers exceptional durability and safety. Lightweight yet powerful, it withstands extreme conditions and expands up to 40.96kWh for greater energy independence.
Backed by top-tier certifications and a 5-year warranty, Humsienk ensures you stay powered—wherever life takes you. Choose power. Choose reliability. Choose Humsienk.




🎯 Core Advantage
✅ More Power, Longer Runtime – 3,968Wh capacity ensures 3x more power than 100Ah models.
✅ Advanced 200A Smart BMS – Supports high-power loads and enhanced safety.
✅ Scalable Energy – Expand up to 40.96kWh for large off-grid systems.
✅ Reliable in Extreme Weather – Works from -4°F to 158°F, ideal for outdoor adventures.
✅ Cost-Effective in the Long Run – Higher cycle life = fewer replacements & lower cost per Wh.

Comparison of 12V 310Ah with other LiFePO4 Batteries
Feature | 12V 310Ah | 12V 200Ah | 12V 150Ah | 12V 100Ah |
---|---|---|---|---|
Energy Capacity (Wh) | 3,968Wh 🔥 | 2,560Wh | 1,920Wh | 1,280Wh |
BMS Protection | 200A Smart BMS 🚀 | 100A BMS | 100A BMS | 100A BMS |
Cycle Life | 15,000+ cycles 🏆 | 8,000+ cycles | 8,000+ cycles | 6,000+ cycles |
Expandable Capacity | Up to 40.96kWh | 20.48kWh | 20.48kWh | 10.24kWh |
Weight | 61.73 lbs (28kg) | 45 lbs (20.4kg) | 35 lbs (16kg) | 23 lbs (10.5kg) |
Best For | Solar, RV, Off-grid, Backup Power, Marine 🌞 | Small Solar & RV | Mid-size RV & Boats | Small Devices & Backup |
🔋 12V 310Ah LiFePO4 Battery
Energy: 3,968Wh
BMS: 200A Smart BMS
Cycle Life: 15,000+ cycles
Expandable: Up to 40.96kWh
Weight: 61.73 lbs (28kg)
Best For: Solar, RV, Off-grid, Marine
🔋 12V 200Ah LiFePO4 Battery
Energy: 2,560Wh
BMS: 100A BMS
Cycle Life: 8,000+ cycles
Expandable: Up to 20.48kWh
Weight: 45 lbs (20.4kg)
Best For: Small Solar & RV
🔋 12V 150Ah LiFePO4 Battery
Energy: 1,920Wh
BMS: 100A BMS
Cycle Life: 8,000+ cycles
Expandable: Up to 20.48kWh
Weight: 35 lbs (16kg)
Best For: Mid-size RV & Boats
🔋 12V 100Ah LiFePO4 Battery
Energy: 1,280Wh
BMS: 100A BMS
Cycle Life: 6,000+ cycles
Expandable: Up to 10.24kWh
Weight: 23 lbs (10.5kg)
Best For: Small Devices & Backup

📌 Where Can You Use 12V 310Ah?
🏕 RV & Camping: Power your AC, fridge & appliances all night.
⚡ Off-grid Solar: Store more solar energy for your independent power needs.
🚤 Marine & Boats: Reliable & lightweight for electric trolling motors.
🏠 Backup Power: Run your home essentials during power outages.