12V 150Ah Lithium Battery (Group 31)

Pricing & Market Factors

What factors affect 12V 150Ah lithium battery wholesale pricing?
Key determinants include cell grade, order volume, and certification costs. Raw material prices (lithium carbonate) and BMS features significantly impact pricing, with typical wholesale costs ranging $500-$900 per unit. Bulk orders (50+ units) often receive 10-25% discounts.

How does market demand impact China lithium battery wholesale trends?
Growing EV demand drives 5-7% annual price increases, while solar storage expansion creates steady demand. Seasonal fluctuations occur, with 10-15% price drops during factory production peaks (Q1-Q2).

Are shipping costs included in China lithium battery wholesale prices?
Most quotes are FOB prices, excluding shipping. Sea freight adds $800-$2000/container, while air costs $5-$10/kg. Some suppliers offer DDP terms with all fees included for 5-10% premium.

Specifications & Performance

What are Group 31 deep cycle lithium battery specifications?
Standard specs include 12V 150Ah capacity, L13×W6.8×H9.5 inch dimensions, and 35-45kg weight. Features 2000-5000 cycles, 100% DoD capability, and -20°C to 60°C operating range.

What are specifications of 12V 150Ah LiFePO4 Group 31?
LiFePO4 versions offer 3000-7000 cycles, IP65 rating, and built-in BMS. Typical energy density reaches 120-140Wh/kg, with 2C continuous discharge (300A) capability. Weight is 60% less than lead-acid equivalents.

How does Group 31 size optimize marine battery placement?
Standardized dimensions match existing battery boxes in most vessels. The compact design allows stackable installation, while reduced weight improves boat balance and fuel efficiency.

Certifications & Safety

What certifications ensure quality in China lithium battery manufacturing?
Essential certs include UN38.3, CE, and IEC 62619. Marine applications require DNV-GL, while industrial use needs UL 1973. Top factories add ISO 9001 for quality management.

What certifications ensure Group 31 lithium battery safety?
Mandatory safety certs are UL 1973, IEC 62133, and RoHS. Marine models add ABYC TE-13 and EN 60092 for saltwater protection. Always verify test reports before purchase.

How does China factory guarantee battery quality?
Tier-1 factories implement automated production, 100% cycle testing, and destructive sampling. Many provide third-party inspection reports (SGS/TÜV) and 5+ year warranties as quality proof.

Applications & Advantages

Which applications suit Group 31 deep cycle lithium batteries?
Ideal uses include marine trolling, RV power, and off-grid solar. Commercial applications power floor scrubbers, telecom towers, and medical carts requiring heavy-duty cycling.

Advantages of LiFePO4 Group 31 over lead-acid batteries?
Key benefits include 5x longer lifespan, 80% weight reduction, and 5x faster charging. Unlike lead-acid, they maintain voltage under load and require zero maintenance.

Why choose 150Ah capacity for heavy-duty use?
150Ah provides optimal balance between runtime (8-12 hours) and physical size. It supports high-draw applications (2000W+) while fitting standard battery compartments in most equipment.

Marine Specifics

What is the lifespan of a 12V 150Ah marine lithium battery?
Marine-grade LiFePO4 lasts 8-12 years (3000+ cycles) in saltwater environments. Proper maintenance (regular terminal cleaning) can extend this to 15 years in moderate climates.

What safety features prevent overheating in marine lithium batteries?
Marine-specific protections include saltwater-resistant casings, thermal fuses, and dual-stage cooling. Advanced BMS provides real-time temperature monitoring and automatic load reduction if overheating occurs.

Are Group 31 lithium batteries compatible with existing marine charging systems?
Yes, but may require voltage adjustments. Most work with standard marine chargers (14.2-14.6V). For optimal performance, use LiFePO4-specific chargers with temperature compensation.

Purchasing & Logistics

What are cost advantages of Group 31 lithium batteries from China?
Chinese pricing is 40-60% lower than Western brands. Bulk orders (100+ units) gain additional 15-25% discounts, with free tooling for custom designs at scale.

How to verify Chinese factories' certifications for Group 31 batteries?
Request certificate copies with validity dates and QR codes. Cross-check with certification bodies' websites. On-site factory audits or video tours provide further verification.

What shipping options exist for bulk orders from Chinese factories?
Standard options include LCL sea (4-6 weeks), FCL sea (3-5 weeks), and express air (7-10 days). Hazardous cargo requires DG-certified forwarders and UN packaging.