NominalVoltage:12.8V
NominalCapacity:300Ah@0.2C
Cycle Life:3000+ Cycles @1C 100%DOD
Charge Voltage:14.4±0.2V
Max.charge Current:200A
IP Class:IP65
Total Weight:33±0.5Kg
5 years warranty
BMS Visual management
Product Description
Characteristics
1. Seamless replacement, zero renovation cost
2. Ultra-large capacity + extremely long cycle, durability at its peak
3. Lightweight + extremely strong weather resistance, suitable for extreme scenarios
4. Seven layers of safety protection + green and environmentally friendly, peace of mind
5. Stable high-current output, no pressure for heavy-load power supply


I. Core Advantages: Revolutionizing Traditional Lead-Acid Batteries to Build Channel Competitiveness
This 12V 300Ah lead-acid replacement battery, based on a lithium iron phosphate (LFP) system, precisely targets conventional 12V lead-acid and AGM batteries, delivering four key breakthroughs: direct compatibility, performance upgrade, cost optimization, and simplified maintenance. It effectively resolves end-user pain points such as short lifespan, high degradation, heavy weight, installation difficulties, low-temperature failure, and frequent replacements—while enhancing product value and market competitiveness for distributors and manufacturers.
1. Ultra-long Lifespan, Significantly Reducing End-User Replacement Costs
Traditional lead-acid batteries offer only 300–500 cycles at 80% DOD, whereas this product achieves 5,000–6,000 deep charge-discharge cycles—over ten times longer than lead-acid batteries. End devices no longer require frequent battery replacements, drastically reducing after-sales service and material replacement costs. This also improves customer retention and repeat purchase rates for distributors by enhancing user satisfaction and brand reputation.
2. High Energy Efficiency, Stable Power Supply Across All Operating Conditions
With extremely low internal resistance, the battery maintains stable voltage throughout discharge, eliminating the late-stage voltage drop and power loss common in lead-acid batteries. It supports continuous 3C discharge and pulsed 10C high-current discharge, meeting the high-instantaneous-power demands of equipment startup. Charging efficiency far exceeds that of lead-acid batteries, reducing charging time by over 50%, making it ideal for fast-charging scenarios and significantly improving operational efficiency and energy utilization. The battery enables 100% depth-of-discharge without capacity degradation or underperformance, ensuring full 300Ah output with no risk of over-deep discharging or inflated capacity claims.
3. Lightweight and Easy Installation, Fully Compatible with Existing Equipment
Designed to match standard lead-acid battery dimensions, this product allows direct replacement without rewiring or modifying equipment, seamlessly fitting into existing lead-acid battery mounting positions and wiring configurations. Weighing 80% less than equivalent lead-acid batteries, it simplifies handling, installation, and maintenance, greatly reducing labor and logistics costs. With zero replacement barriers, it ensures smooth channel deployment and eliminates compatibility challenges.
4. Universal Compatibility and High Safety, Minimizing After-Sales Risks
Operational temperature range spans -20°C to 60°C, ensuring stable performance in extreme conditions and solving common lead-acid issues like winter sulfation and summer swelling. Equipped with a high-precision dual-protection BMS system, it provides multiple safeguards including overcharge, over-discharge, overcurrent, short-circuit, low-temperature cutoff, and cell balancing, completely eliminating risks of fire, explosion, or swelling. Utilizing automotive-grade A-level cells, it contains no heavy metals, is environmentally friendly, and complies with global environmental certifications, enabling compliant sales without regulatory concerns.
5. Smart Monitoring and Differentiated Value Proposition
Optional Bluetooth/WiFi smart monitoring enables real-time tracking of voltage, state of charge, temperature, and cycle count, along with remote fault alerts. Unlike traditional lead-acid batteries, which lack monitoring capabilities and make fault diagnosis difficult, this feature empowers channels to offer premium, differentiated products and increase profit margins per unit.
II. Key Application Scenarios: Precisely Targeting Mainstream Essential Markets, Ideal for Channel Distribution
The 12V 300Ah high-capacity replacement battery offers broad applicability and strong market demand, making it a core bestseller for bulk distribution by traders and product iteration for manufacturers. It covers three major markets: residential energy storage, industrial backup power, and outdoor specialty equipment—where demand is steady and repurchase rates are high.
1. Solar Energy Storage and Home Backup Power
Ideal for off-grid home solar systems, household energy storage, emergency backup power, and solar street lighting systems, this battery excels in long-term standby and frequent charge/discharge cycles. It solves common lead-acid problems such as poor weather resistance, short lifespan, and low energy utilization, becoming the primary choice for upgrading home energy storage solutions.
2. Outdoor Mobile Equipment
Perfectly suited for RVs, motorhomes, yachts, boats, fishing vessels, golf carts, and outdoor work equipment, this battery leverages its lightweight design, shock resistance, wide temperature adaptability, and high current output to replace bulky, fragile traditional lead-acid batteries.
3. Industrial Backup Power UPS uninterruptible power supply, communication base stations, surveillance backup power, and industrial control equipment energy storage—meeting the long-term stable voltage power requirements of industrial equipment with stability and reliability far surpassing lead-acid batteries, significantly reducing the risk of operational downtime in industrial environments.
4. Commercial Specialized Applications
Outdoor base stations, power systems for remote areas, small-scale energy storage stations, and backup power for new energy applications—ideal for long-term unattended, 24/7 operation, offering extremely low maintenance costs and outstanding cost-effectiveness in commercial settings.
III. Solution Capabilities:
1. Seamless Replacement Solution
Standardized appearance, interfaces, and specifications identical to conventional lead-acid batteries allow direct in-place replacement without requiring end customers to modify equipment circuits or installation structures. Fully compatible with all market-available 12V lead-acid battery-powered devices. Supports multi-series and parallel expansion, enabling customized energy storage configurations based on specific power requirements, meeting diverse needs across various application scales.
2. Customized Supply Chain Solutions
For distributors: supports bulk stock availability, mixed batches, and OEM/ODM customization—including logo, packaging, and parameter labeling—to build proprietary brand products. Provides unified product manuals, marketing materials, and sales scripts to accelerate market penetration. For battery manufacturers: offers full supply of cells and modules, technical integration support, and product iteration assistance, helping manufacturers quickly upgrade their lead-acid product lines to lithium-ion technology and capture market opportunities from substitution trends.
3. Integrated Technical and After-Sales Service
Provides comprehensive technical support including application matching, installation guidance, fault diagnosis, and system commissioning. Smart battery models offer backend data integration support to facilitate intelligent upgrades at the end-user level. A robust after-sales service network ensures warranty periods well beyond those of traditional lead-acid batteries, significantly reducing channel-level service burdens and eliminating concerns for distributors and manufacturers.
4. Cost-Optimized Profitability Model
Compared to traditional lead-acid batteries that offer short-term low prices but high long-term replacement costs, our product delivers lower total cost of ownership due to its ultra-long lifespan and minimal maintenance expenses, making it easier for channel partners to close deals. Additionally, the lithium battery substitution market offers higher premium margins, and bulk procurement provides significant cost advantages, ensuring sustainable profitability for both distributors and manufacturers.
IV. Company Strength: Building Trust and Ensuring Long-Term Win-Win Cooperation
With years of expertise in energy storage batteries and lead-acid-to-lithium replacement solutions, we specialize in R&D, manufacturing, and sales of 12V low-voltage energy storage batteries. Backed by a mature supply chain, production system, and service capability, we are a reliable partner for manufacturers upgrading their product lines and distributors seeking long-term inventory deployment.
1. Robust Product Development and Quality Control
We maintain an independent R&D team and laboratory dedicated to developing low-voltage lithium battery replacement solutions precisely aligned with market demand. All products use top-tier A-grade cells (including options such as CATL and EVE), and each battery undergoes rigorous testing for charge/discharge cycles, high/low temperatures, vibration, and short-circuit resistance. Our strict quality standards ensure industry-leading consistency, stability, and extremely low defect rates.
2. Scalable Production and Delivery Capacity
Our standardized production facilities enable large-scale mass manufacturing. We keep ample stock of our flagship 12V 300Ah model, allowing rapid fulfillment of bulk and urgent orders. Customized production scheduling is supported, ensuring stable delivery timelines and eliminating stockouts or delays, guaranteeing smooth inventory rollout for channel partners.
3. Comprehensive Certifications and Compliance
Our products meet full international certifications including CE, FCC, and RoHS, complying with both domestic and overseas export standards, enabling seamless sales through all channels—domestic and cross-border—with no compliance risks. Products conform to environmental and safety industry standards, making them suitable for bidding and supply in industrial, commercial, and residential applications.
4. Long-Term Partnership Support
We uphold a win-win cooperation model, offering price protection and regional exclusivity policies to partner manufacturers and distributors, preventing destructive price competition. Offer priority product updates and new model launch rights, along with comprehensive training, promotion, and after-sales support to help customers continuously capture the billion-dollar lead-acid replacement market, achieving dual growth in sales and profits.
Choose Us: Professional Manufacturer of Replacement Lead-Acid Batteries
We always focus on the core principles of "precise adaptation, long-term stability, and high cost-effectiveness". We have been deeply involved in the field of lead-acid replacement batteries. The 12V300AH product, with its seamless replacement, extremely long lifespan, and safety and convenience as its core advantages, has become the preferred choice for numerous enterprises and users worldwide. Choosing us means not only getting high-quality battery products, but also enjoying the price advantage, customized solutions, and full-cycle technical support from the source manufacturer. We are willing to work with global partners to promote the upgrade of the energy storage field with professional technology and create benchmark products for lead-acid replacement batteries.