We are a professional 3.2V AA rechargeable battery manufacturer exclusively focusing on 14500-format LiFePO4 (lithium iron phosphate) batteries—delivering full-cycle manufacturing from R&D to mass production, with core focus on 3.2V nominal voltage stability, long cycle life, and industrial-grade reliability. Our 3.2V AA rechargeable batteries serve global B2B clients across industrial control, IoT devices, outdoor equipment, and portable medical tools, leveraging dedicated 3.2V-calibrated production lines and LiFePO4 expertise to meet the demand for precise, durable 3.2V power solutions. With dual production bases and strict quality control tailored for 3.2V performance, we stand as a trusted partner for brands seeking specialized 3.2V AA rechargeable battery supply.

Core Manufacturing Capabilities for 3.2V AA Rechargeable Batteries

3.2V-Specific Production Infrastructure

Dual 3.2V Dedicated Production Bases: Two purpose-built facilities (total area 45,000㎡) with workshops optimized for 3.2V AA battery manufacturing—including 3.2V-specific electrode preparation, cell assembly, formation aging, and packaging. Layout tailored to AA format (14.0×50.5mm) and 3.2V LiFePO4 cell structure, ensuring seamless production flow.

3.2V-Calibrated Automated Lines: 22 automated production lines exclusively for 3.2V AA rechargeable batteries, all calibrated for LiFePO4 3.2V system: Precision electrode coating machines (thickness tolerance ±0.01mm), AA-sized winding systems (tension control ±0.1N), and 3.2V-specific formation stations (constant voltage aging at 3.2V). Key equipment includes Japan’s Toray 3.2V electrode processing machines and Germany’s Trumpf laser sealing systems.

Scalable 3.2V Production Capacity: Annual production capacity of 35 million units of 3.2V AA LiFePO4 rechargeable batteries, supporting bulk orders (100,000+ units/month) and small-batch customizations (MOQ 1,000 units). Flexible line configuration adapts to 3.2V-specific capacity and discharge rate requirements.

3.2V Smart Manufacturing System: MES (Manufacturing Execution System) integrated across all lines, real-time monitoring of 3.2V core production parameters—electrode alignment accuracy, 3.2V formation efficiency, cycle life consistency, and voltage stability—ensuring batch-to-batch uniformity.

Core Technology & 3.2V Product Advantages (14500 LiFePO4)

3.2V Ultra-Stable Voltage Output: Nominal voltage 3.2V, discharge voltage fluctuation ≤0.05V (100%–0% SOC), ideal for devices requiring precise 3.2V power supply (e.g., industrial sensors, IoT modules).

High Capacity & Long Cycle Life: Capacity range 1500–2500mAh, advanced LiFePO4 cathode modification (carbon nanotube composite coating) enables 2000+ charge-discharge cycles (80% capacity retention), outperforming standard rechargeable batteries in long-term use.

Wide Temperature Adaptability: Stable 3.2V discharge performance across -20℃ to 60℃, with capacity retention ≥85% at -20℃ and ≥90% at 60℃—suitable for extreme environment applications like outdoor monitoring and industrial control.

Safety & Eco-Friendly Design: LiFePO4 intrinsic thermal stability + dual safety protection (internal PTC thermistor + pressure relief valve) eliminates thermal runaway risk. Mercury-free, cadmium-free construction, compliant with global environmental standards (RoHS, REACH, EU EPR).

Fast-Charging Compatibility: Supports 0.5C–1C fast charging, full charge time 2–3 hours (3.2V constant current-constant voltage charging protocol), balancing efficiency and battery lifespan.

3.2V-Strict Quality Control System

3.2V Full-Cycle Inspection: Quality checks embedded at every stage, tailored for 3.2V performance:

Raw material screening: LiFePO4 cathode purity ≥99.5% (ICP-OES testing), graphite anode moisture ≤0.1%—ensuring 3.2V voltage stability.

In-line inspection: Electrode thickness (±0.01mm), winding uniformity, 3.2V initial voltage precision (±0.02V).

Formation testing: 72-hour 3.2V constant-voltage aging, cycle life pre-test (50 cycles to verify capacity retention).

Final sampling: 5% batch testing for 3.2V discharge curve, high/low temperature performance, and safety (short-circuit, overcharge, impact).

3.2V-Specific Testing Laboratory: On-site facilities with 3.2V precision voltage testers (±0.001V accuracy), cycle life simulators (2000+ cycles), and extreme environment chambers. Each 3.2V AA battery undergoes 60+ performance and safety tests before shipment.

Global Compliance for 3.2V Batteries: Products meet UN38.3, UL 1642, CE, RoHS, ISO 9001, and IEC 62133 standards (3.2V LiFePO4 rechargeable battery-specific certification).

3.2V Traceability Management: Unique QR code for each 3.2V AA battery, linking to raw material batches, 3.2V production parameters, and test results—ensuring full transparency for clients.

3.2V AA Rechargeable Battery Core Technology

3.2V LiFePO4 Material & Cell Design

High-purity LiFePO4 cathodes (≥99.5%) + modified artificial graphite anodes, tailored for 3.2V nominal voltage—ensuring stable 3.2V discharge and low self-discharge (≤2%/month at 25℃).

Electrode ratio optimization (1:1.08 cathode/anode) exclusive to 3.2V 体系: Minimizes voltage drop (≤0.3V from 100%–0% SOC) and enhances cycle life.

14500 AA 3.2V format: 14.0×50.5mm dimensions, energy density 350–400 Wh/kg (1500–2500mAh), compatible with standard AA device slots with 3.2V power requirements.

3.2V Customizable Parameters: Capacity (1500–2500mAh @3.2V), discharge rate (0.1C–10C @3.2V), and packaging (bulk, blister pack, custom branding).

3.2V-Optimized Manufacturing Processes

Precision Electrode Coating: 3.2V-specific slurry formula (nanoscale LiFePO4 dispersion) and coating thickness control, enhancing electron conductivity for stable 3.2V output.

Hermetic Laser Sealing: Calibrated for 3.2V LiFePO4 cells (sealing leak rate ≤1×10⁻⁶ Pa·m³/s), preserving 3.2V voltage stability over 5+ years of storage.

3.2V Formation Aging: Constant-voltage charging/discharging at 3.2V to activate LiFePO4 crystal structure, ensuring consistent capacity and voltage across batches.

Anti-Corrosion Shell Treatment: 304 stainless steel casing with nickel-plated coating (salt spray test ≥500 hours), protecting 3.2V internal components in harsh environments.

3.2V-Specific Application Solutions

Industrial Control Systems: 3.2V AA rechargeable batteries with ±0.01V voltage consistency and 10–2000Hz vibration resistance—powering PLC backup modules, remote sensors, and automation equipment. Annual supply of 5 million units to global industrial brands.

Smart IoT Devices: Low self-discharge (≤2%/month) 3.2V batteries for smart meters, environmental monitors, and asset trackers—5–10 year service life reduces replacement frequency, supported by 3.2V stable standby power.

Outdoor Equipment: Wide-temperature 3.2V batteries (-20℃ to 60℃) for GPS trackers, portable lighting, and solar-powered outdoor devices—stable 3.2V discharge in extreme cold/hot conditions, IP67 waterproof optional.

Portable Medical Tools: ISO 13485-certified 3.2V AA batteries with sterile production processes—high stability and biocompatible casings for blood glucose monitors, portable oxygen concentrators, and medical sensors.

Why Choose Our 3.2V AA Rechargeable Battery Manufacturer?

3.2V Specialization: Exclusive focus on 3.2V AA LiFePO4 batteries, all production lines, equipment, and processes calibrated for 3.2V voltage stability—no generic battery manufacturing.

LiFePO4 Core Advantage: Leveraging 3.2V LiFePO4’s intrinsic safety (no thermal runaway), long cycle life (2000+ cycles), and low self-discharge—ideal for critical applications.

Scalable & Reliable Supply: 35 million units/year capacity + dual production bases, ensuring stable delivery for bulk orders (lead time 7–15 days) and custom batches (2–4 weeks).

Ultra-Precise Quality: 0.03% defect rate (industry average 0.5%), 3.2V voltage consistency ±0.02V, and full-cycle quality control—minimizing client operational risks.

Customization Flexibility: Tailored 3.2V capacity, discharge rate, and packaging, with R&D support for application-specific optimization (e.g., ultra-low temperature, high-rate discharge).

Global Compliance & Sustainability: 100% renewable energy-powered production, 95% wastewater reuse, and 85% electrolyte recycling—3.2V batteries comply with global environmental and safety standards.

Cooperation & Support

3.2V Custom Development: R&D team collaborates with clients to design 3.2V AA batteries for unique applications (e.g., ultra-high capacity, extreme temperature resistance).

Sample & Pilot Production: 7–10 days delivery of 3.2V samples (free for bulk clients) with detailed 3.2V test reports, supporting product validation.

Logistics & Delivery: Global shipping partnerships (Maersk, DHL), UN38.3-compliant packaging for 3.2V batteries, and on-time delivery to 50+ countries.

After-Sales Support: 3-year warranty for 3.2V cells, technical guidance for 3.2V power integration, and batch quality feedback—ensuring long-term cooperation.

We invite you to explore our 3.2V AA rechargeable battery manufacturing capabilities, request custom samples, or discuss bulk production partnerships. Let’s power your critical devices with high-stability, reliable 3.2V AA rechargeable batteries tailored to your needs!