AoKu AK-LFP Series 12.8V Deep Cycle LiFePO4 Lithium Battery (7.2Ah - 200Ah | 92.1Wh - 2560Wh)
AoKu AK-LFP Series 12.8V Deep Cycle LiFePO4 Lithium Battery (7.2Ah - 200Ah | 92.1Wh - 2560Wh)
The AoKu AK-LFP Series (12.8V 7.2Ah - 200Ah | 92.1Wh - 2560Wh) is a lightweight, maintenance-free LiFePO4 deep cycle lithium battery series. Features 6000+ deep cycles at 90% DOD, 50% weight reduction vs SLA, built-in BMS protection, IP65 waterproof rating, and drop-in lead-acid replacement capability for solar ESS，EV and UPS backup.
KEY FEATURES & BENEFITS
6,000+ Deep Cycles & 10-Year Long Service Life
Engineered with premium Grade-A LiFePO4 chemistry, the AK-LFP series delivers over 6,000 deep discharge cycles at 90% DOD (with 70% capacity retention at EOL). It provides up to 10 years of reliable service life, far outlasting traditional AGM/SLA lead-acid batteries.
50% Weight Reduction & Drop-In SLA Replacement
Weighing only 40% to 50% of comparable lead-acid batteries, the AK-LFP series dramatically slashes structural load and shipping costs. Featuring standardized ABS enclosure sizes and T2/M5/M6/M8 copper terminals, it is a 100% plug-and-play drop-in replacement compatible with standard lead-acid chargers.
Integrated Automatic BMS & Cell Balancing
Equipped with a built-in intelligent Battery Management System (BMS) that continuously monitors internal cell voltages. Automatically shields the battery pack against over-charge, over-discharge, over-current, short-circuit, and thermal runaway without requiring external maintenance.
IP65 Waterproof Rating & ABS Flame-Retardant Case
Housed in a rugged, impact-resistant ABS plastic casing rated at IP65 dust and water resistance. Fully sealed construction allows safe installation in marine, RV, outdoor solar, and humid industrial environments with zero leakage risk.
Wide Operating Temperature Range (-20°C to +60°C)
Designed for extreme climatic conditions, supporting stable discharge temperatures from -20°C (-4°F) up to +60°C (140°F) and charging from 0°C to +50°C. Maintains excellent voltage stability under heavy pulse currents up to 200A@10S.
PRODUCT SPECIFICATIONS
| Category | Technical Parameter | AK-LFP 12V-7.2Ah | AK-LFP 12V-21.6Ah | AK-LFP 12V-50Ah | AK-LFP 12V-100Ah | AK-LFP 12V-200Ah |
|---|---|---|---|---|---|---|
| ⚡ Electrical & Battery Capacity Ratings | ||||||
| Electrical Ratings | Nominal Voltage | 12.8 Vdc | ||||
| Nominal Capacity (@0.2C) | 7.2 Ah | 21.6 Ah | 50 Ah | 100 Ah | 200 Ah | |
| Energy Storage Capacity | 92.1 Wh | 276.4 Wh | 640 Wh | 1,280 Wh | 2,560 Wh | |
| Cycle Life & Retention | ≥6,000 Cycles @0.5C / 90% DOD (25℃, EOL 70% Capacity) | |||||
| 🔌 Charge & Discharge Parameters | ||||||
| Charging & Discharging | Charge Voltage & Mode | 14.4V ± 0.2V (CC/CV Mode at 0℃~50℃) | ||||
| Max. Continuous Charge Current | 7.2 A | 22 A | 50 A | 100 A | 100 A | |
| Max. Continuous Discharge Current | 10 A | 32 A | 50 A | 100 A | 100 A | |
| Max. Pulse Discharge Current (@10s) | 20 A | 60 A | 100 A | 200 A | 200 A | |
| Discharge Cut-off Voltage | 9.8 Vdc | |||||
| 📐 Mechanical, Dimensions & Protection | ||||||
| Physical & Environment | Case Material & IP Rating | Flame-Retardant ABS Plastic Case | IP65 Waterproof | ||||
| Dimensions (L × W × H) mm | 90 × 70 × 107 | 181 × 77 × 167 | 229 × 138 × 213 | 328 × 172 × 215 | 522 × 240 × 218 | |
| Approximate Net Weight | 0.90 kg | 2.10 kg | 6.50 kg | 11.80 kg | 26.00 kg | |
| Copper Terminal Type | T2 | M5 | M6 | M8 | M8 | |
| Operating Temperature Range | Charge: 0℃ to 50℃ | Discharge: -20℃ to 60℃ | Storage: 0℃ to 45℃ | |||||
Technical Documentation
Access complete industrial specification layouts, installation blueprints, communication protocol guides, and international compliance certifications.
Technical Catalog
Get the AoKu AK-LFP Series catalog for full electrical specifications, cabinet dimensions, battery configurations, wiring guides, and certifications.
User Manual
Get the AoKu AK-LFP Series user manual for step-by-step installation, wiring diagrams, LCD settings, warning/fault code solutions, and battery maintenance.
PRODUCT APPLICATIONS
The AoKu AK-LFP Series LiFePO4 Lithium Iron Phosphate Battery System provides long-lifecycle, high-safety energy storage for residential, commercial, and industrial energy projects. It integrates seamlessly across six key application scenarios:
☀️ Home Solar Energy Storage Expansion
Pairs with off-grid and hybrid solar inverters to store excess photovoltaic energy during the day. Delivers reliable 12.8V DC power during night hours or grid outages for residential loads.
🏬 Commercial Peak Shaving & Load Shifting
Configurable in series/parallel battery banks to buffer commercial peak demand spikes, reducing grid utility demand charges for offices, retail stores, and small factories.
📡 Telecom 5G Base Stations & Data Repeaters
Provides clean, uninterrupted 12V/24V/48V DC backup power for remote 5G cell towers, outdoor communication shelters, and network repeaters operating under harsh weather.
⚡ Microgrid & Renewable Energy Integration
Serves as a robust energy buffer for islanded microgrids, wind-solar hybrid systems, and remote off-grid farming communities, ensuring stable frequency and voltage.
🏥 Critical Medical & Industrial UPS Backup
Delivers high-current pulse discharge capability (up to 200A@10S) to back up precision hospital monitoring equipment, emergency lighting, and automated PLC control racks.
🌾 Off-Grid Agricultural & Remote Power
Powers agricultural automated irrigation controllers, solar water pumps, livestock farm ventilation, and remote field monitoring devices with zero maintenance requirements.
PRODUCT SOLUTIONS
Technical solution architectures engineered by AoKu Energy to overcome traditional lead-acid weight, short lifespan, and maintenance bottlenecks in global energy projects:
🔋 6,000+ Deep Cycle Longevity Solution
The Problem: Conventional SLA/AGM batteries degrade rapidly after 300-500 cycles, causing frequent replacement expenses.
AoKu Solution: AK-LFP utilizes Grade-A LiFePO4 chemistry delivering ≥6,000 deep cycles @ 90% DOD, extending replacement intervals to 10+ years and drastically lowering TCO.
🛡️ Integrated Automatic BMS Multi-Protection
The Problem: Unprotected batteries suffer from thermal runaway, over-charging damage, and cell imbalance.
AoKu Solution: Built-in intelligent BMS performs cell voltage balancing and real-time fault isolation, protecting against over-charge, over-discharge, short-circuit, and high heat.
🛠️ 50% Weight Reduction & Drop-In SLA Compatibility
The Problem: Heavy lead-acid batteries increase freight fees and complicate installation in elevated racks.
AoKu Solution: AK-LFP achieves a 50% weight reduction while maintaining exact standard SLA case dimensions (T2/M5/M6/M8 terminals), allowing seamless 1-to-1 drop-in replacement.
🌡️ Harsh Operating Temperature Tolerance (-20°C to 60°C)
The Problem: Extreme ambient cold or heat degrades battery capacity and triggers sudden voltage collapse.
AoKu Solution: Engineered to withstand harsh outdoor discharge conditions from -20°C to +60°C, ensuring reliable operation in desert solar plants or cold mountain sites.
⚡ High Continuous & Pulse Discharge Capability
The Problem: Inductive loads and inverter startup surges trigger severe voltage drops on weak batteries.
AoKu Solution: Supports 100A continuous discharge and up to 200A@10S pulse discharge currents, easily handling high-surge motor and inverter inrush currents.
🌊 IP65 Sealed Waterproofing & Low Self-Discharge
The Problem: Moisture, salt spray, and long seasonal storage cause battery corrosion and self-drain.
AoKu Solution: Features IP65 sealed ABS casing and ≤3.5%/month low self-discharge chemistry, preserving energy integrity during extended off-season storage or marine outdoor use.
Frequently Asked Questions
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