Q: How many charging mode does the controller have?
A: There are two charging modes. There are PWM and MPPT. MPPT is the most advanced. Felicity have already developed MTTP charge controller with high performance, reliability, efficiency and fast tracking speed.
Q: What's the difference of the PWM charge controller and MPPT charge controller?
A: 1. MPPT controller uses maximum power tracking technology, compared to the PWM controller, the MPPT can generate more electricity with the same solar panels.
2. MPPT controller has low requirement of solar power system voltage, if the line or component parts damage the voltage, using MPPT controller does not affect the system generating.
3. MPPT controller can detect the temperature of the battery, then adjust the temperature by itself, the solar panel can charge the battery more efficiency.
Q: Why should the controller have temperature compensation function?
A: As temperature rises, electrochemical activity in the battery increases. Similarly, as temperature falls, electrochemical activity decreases. Therefore, as temperature rises, charging voltage should be reduced to prevent overcharge, as temperature falls, charging voltage should be increase to avoid undercharge. In general, to assure optimum service life, use of a temperature compensated charger is recommended.
Q: How does your factory carry out quality control?
A: Quality is our priority. Our QC always attached great importance to quality control from the very beginning to the end of the production. Each product will be fully assembled and carefully tested before packed.
Q: What is the warranty for MPPT Charge Controller FL-CSM6048?
A: For the charge controller, we offer 2 year warranty.
Q: What is MOQ for inverter?
A: MOQ is 1 PC or mixed.
Q: What is the terms of payment?
Q: T/T, L/C, Western Union, PayPal or cash; 30% for deposit, the balance 70% before shipment.
Q:What is the delivery time?
A: 3 work day with stock after receiving the payment. No stock, 25 work days after receiving the payment.