Common Issues with Lithium Battery Systems

Solar input connection notes:

• Ensure PV panel output voltage is within 15-36V range
• Use reverse-polarity protected MC4 connectors
• Positive/negative terminals must be correctly aligned
• Recommended to install DC circuit breaker for maintenance
• Allow voltage margin as cloudy weather may cause voltage spikes

Battery compatibility:

• Supports 5-15S lithium battery packs (15-45V)
• Lithium Iron Phosphate (LiFePO4) cells recommended
• Single pack maximum capacity: 1920Wh
• Parallel connections require voltage matching
• Built-in BMS automatically balances cell voltages

Battery care recommendations:

• Avoid deep discharge (automatic protection below 10.2V)
• Charging voltage not exceeding 14.4V
• Maintain 50% charge for long-term storage
• Operating temperature: -20℃~45℃
• Perform full charge-discharge cycle every 3 months

Load capacity specifications:

• Continuous output ≤120W
• Peak power (5 seconds): up to 150W
• Calculate total power when using multiple devices
• Typical load examples:
  • Laptop (60W) + phone charging (10W)
  • Mini fridge (80W) standalone use
  • LED lighting (20W) ×6 units

Typical use cases:

• Home energy storage: 300W solar panel meets basic needs
• Outdoor power: 1920Wh version powers fridge for ~24h
• Surveillance system: 5W camera continuous power for 15 days
• Emergency backup: Supports critical medical equipment
• Power tools: Drives DC motors below 45V

Capacity selection guide:

• 320Wh: 30 phone charges + 8h laptop power
• 960Wh: 12h mini fridge + basic lighting
• 1920Wh: Home emergency power or 50km e-bike range
• Recommend 20% reserve capacity for cloudy days

Multi-layer safety features:

• Overcharge protection: Auto cutoff at ≥14.4V
• Over-discharge protection: Stops discharge at ≤10.2V
• Short-circuit protection: Auto shutdown when output shorted
• Temperature protection: Adjusts charge/discharge for extreme temps
• Reverse polarity protection: Input/output anti-reverse design

Reset procedure:

1. Disconnect all input/output connections
2. Wait 30 seconds for system reset
3. Check trigger cause (overvoltage/undervoltage/overheat)
4. Reconnect after troubleshooting
5. Contact technical support if repeatedly triggered