charles@yvalleyenergy.com
20kWh 11KW Mobile All-in-One
Solar/Wind Energy Storage System
51.2V 400Ah
20.48kWh Energy
6000 Cycle Life
High Performance
Product Introduction
High-Capacity Solution
20.48kWh high-capacity lithium iron phosphate battery designed as a direct replacement for 48V 200Ah lead-acid battery banks, providing superior performance and reliability.
Enhanced Performance
Delivers consistent power output throughout discharge cycle with 95%+ usable capacity, compared to 50% for lead-acid batteries, providing more available energy for your applications.
Extended Service Life
Over 6000 charge cycles at 80% depth of discharge ensures 10+ years of reliable service, significantly outperforming traditional lead-acid battery lifespan.
Technical Features
Intelligent BMS
Advanced Battery Management System with sophisticated protection algorithms, real-time monitoring, and cell balancing for optimal performance and safety.
Wide Temperature Range
Operates reliably from -20°C to +60°C with minimal capacity loss, suitable for harsh environmental conditions where lead-acid batteries fail.
Fast Charging
Accepts high charge rates up to 200A for rapid recharging, reducing downtime and improving system availability compared to slow lead-acid charging.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AYG20-11KW |
| Nominal voltage | 51.2V |
| Nominal Capacity | 400Ah |
| Rated energy | 20480Wh |
| Battery pack parallel function | Optional |
| Rated Power | 11KW |
| Input frequency | 50Hz/60Hz |
| Cycle Life | 6000 cycles (80% DOD) |
| Solar/Mains charging input | 5400+5400W (60-450V) PV+AC 160A，MPPT 160A |
| Operating Temperature | -20°C to +60°C |
| Output voltage | 220V/230VAC±5%（110V customizable） |
| Output waveform | Pure Sine Wave |
| Communication | RS232, RS485, CAN |
| Dimensions | 660×350×865mm |
| Package Dimensions | 740×420×1100mm |
| Weight | 160kg |
| Package Weight | 182kg |
Application Scenarios
Industrial Backup Power
Ideal for industrial UPS systems, telecom stations, and critical infrastructure requiring reliable long-duration backup power with minimal maintenance requirements.
Large Solar Systems
Perfect for commercial and large residential solar installations, maximizing energy storage capacity and improving system ROI with superior cycle life.
Whole Home Backup
Comprehensive home backup solution providing extended runtime for entire household during power outages with reliable, maintenance-free operation.
Installation & Integration
Direct Replacement
Drop-in replacement for 48V 200Ah lead-acid battery banks with no system modifications required. Compatible with existing charging and monitoring equipment.
Parallel Capability
Multiple units can be connected in parallel for increased capacity, with built-in balancing ensuring equal current sharing and optimal system performance.
System Monitoring
Optional communication interfaces provide detailed system monitoring including voltage, current, temperature, and state of charge for comprehensive system oversight.
Frequently Asked Questions
This 200Ah lithium battery provides equivalent or greater usable capacity than 400Ah lead-acid batteries due to deeper discharge capability and consistent voltage throughout discharge.
Yes, multiple units can be connected in parallel to increase total system capacity. The built-in BMS ensures proper current sharing and balanced operation across all units.
No maintenance is required. Unlike lead-acid batteries, there's no need for water topping, equalization charging, or ventilation. The system is completely maintenance-free.
With a 200A charger, the battery can be fully charged in approximately 1 hour. Charging time varies based on charger capacity and can be significantly faster than lead-acid alternatives.
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