


Rigorous Testing and Safe Transport
We prioritize battery safety in both design and transport. Each product undergoes final testing to ensure performance before shipment, guaranteeing that you receive high-quality products.
Packing and Transport
Safe transport is paramount for lithium batteries. Our robust packaging, often using plywood boxes for batteries over 12kg, has been tested for safe shipping via road, sea, or air. We recommend shipping a minimum of 1 pallet to reduce shipping costs and ensure the protection of your products during transit.
Standard Or Custom Packed As Modules At Different Voltage And Amp-hour For Multiple Applications
UPS ;power tools; golf cart ; stationary battery; telecom ESS; Special vehicle; electric boat ; E-scooters; EV, e-scooter, electric golf car, electric vacuum sweeper; Electronic toy, model airplane, remote control. Communication equipment: Cordless telephone, inter-phone. Modality equipment and consumer electronics. Decorative lighting, Solar lamps, torch, emergency light, solar street light and power supply.



Comprehensive Global Certifications
Our products are rigorously tested and certified for safety, health, and environmental standards across major markets worldwide, including North America, Europe, Japan, and Australia. We comply with industry-specific certifications such as:
- ISO 9001/14001 quality systems
- UL1973 test reports (available upon request)
- UN38.3 + MSDS for transport safety
Items | Specification |
Norminal Capacity | 21/27/50/52/67/100/102/104/105/106/150/167/200/230/280/300/314/320/340/340Ah |
Nominal Voltage | 3.2v |
Charge/Discharge Voltage Range | 2.5v-3.65v / 2.0v-3.65v |
ACR | 0.1mΩ≤R≤0.3mΩ |
DCR | <0.5mΩ |
Standard Power Charge | 0.5p(475w) 3.65v |
Regular Charge(Slow Charge) | 150A 3.65v 15A |
Optimum Working Temperature | 15-35ºC |
Charge Temperature Range | 0-55ºC |
Discharge Temperature Range | -30-60ºC |
Room Temperature Cycle Life | 2500- 8000cycles 25±2 ºC,0.5p 80%DOD,70%EOL |

Safe and Reliable Battery Solutions
We offer Class A and 100% authentic brand cells to ensure high performance and reliability. Our products undergo stringent quality checks and certifications to meet global standards.
Prismatic Lithium Cells: Revolutionizing Battery Design
Prismatic lithium cells are designed for high energy density, making them ideal for large battery pack configurations. Compared to cylindrical cells, prismatic cells offer higher amp-hours per cell, allowing for greater capacity. They are perfect for energy storage systems, replacing traditional sealed lead-acid batteries, and providing more efficient and reliable energy storage solutions.
Advantages of Prismatic Lithium Cells:
- High Energy Density: Optimized for large-capacity applications.
- Ensured Consistency: Advanced automated production ensures uniformity in every cell.
- Stable Voltage Platform: Low internal resistance, high discharge rate, and stable voltage.
- Safe and Reliable: Lithium iron phosphate (LiFePO4) chemistry is the safest among all lithium battery types.
SYLJ is a leading manufacturer of high-quality Lithium Ion (Li-ion) and Lithium Iron Phosphate (LiFePO4) batteries and battery packs for various industries. Our solutions are designed to meet the demands of the modern portable device landscape. We provide custom battery packs and have established ourselves as a trusted supplier for OEMs in markets such as medical, industrial (ITAR registered), transportation, instrumentation, telecom, RFID, robotics, and data acquisition.
Frequently Asked Questions (FAQ)
Q1: Are you an original manufacturer or a trading company?
A: We are the original manufacturer of LiFePO4 battery products, with an ISO9001-certified factory and high annual production capacity.
Q2: Do you offer OEM and ODM services?
A: Yes, we provide OEM and ODM services, including custom labels and independent designs for both commercial and industrial energy storage systems (ESS) at competitive prices.
Q3: How do you differentiate from other suppliers?
A: We focus on innovation, offering systematic energy products and solutions with a global vision. We are VC-backed and have experienced a 400% annual growth rate, reflecting our leadership in the industry.
Q4: What is your lead time?
A:
- Samples/Small Orders: Typically 5-10 days
- Bulk Orders: Lead time depends on custom conditions
Q5: Can you provide samples?
A: Yes, we offer samples. Please contact our representative for arrangements.
Q6: Why choose SYLJ?
- Fast-growing company with a vision and leadership
- Guaranteed quality with over 1GWh of batteries in service worldwide
- Original manufacturer with strong R&D, ODM, and OEM capabilities
- Complete LFP product line
- Trade Assurance protection for your purchase
Q7: What are your main products?
- LFP cells
- LFP battery packs
- LFP battery modules
- Telecom tower battery supplies
- Special vehicle power supplies
- Home energy storage systems
- Commercial energy storage systems
- Industrial energy storage systems
- Containerized energy storage systems
Q8: How to customize lithium batteries with my brand?
A: SYLJ offers free OEM services, including:
- Logo laser engraving
- Custom voltage configurations (12V/24V/48V, etc.)
- Private packaging design
Q9: What is the lead time for 100Ah home energy storage systems?
A:
- Stock items: 7 working days
- Full container load: 30 days (20FT container holds 200+ units)
Q10: What certifications do SYLJ batteries have?
A:
- ISO 9001/14001
- UL1973 test reports (available upon request)
- UN38.3 + MSDS for transport safety
Q11: What are the payment terms for first-time buyers?
A:
- Up to 30% deposit, with the 70% balance before shipment
- LC at sight for orders >$50,000
- PayPal accepted for sample orders