The Ministry of Finance of China issued an announcement on adjustments to the export tax rebate policy for products such as photovoltaic products on Jan. 9. Starting from April 1, 2026, the VAT export tax rebate for products such as…
Many users new to photovoltaic systems have similar questions! The input voltage of a solar panel is indeed related to light intensity, but it’s not true that “the stronger the light, the higher the voltage will rise indefinitely”; and the…
To understand the workings of a lithium battery’s BMS, think of it as a “full-time housekeeper and personal bodyguard” for the battery—it monitors the battery’s voltage, temperature, and current in real time to prevent overcharging, over-discharging, and overheating, maintaining battery…
Photovoltaic panels must be properly connected in series or parallel for efficient and safe operation. The following explains the key points in plain language, without any technical jargon. First, let’s understand: What exactly do series and parallel connections “accumulate”? Photovoltaic…
Are the batteries you buy safe?A must-read guide to lithium battery export: UN38.3, MSDS, and transport identification!Why are these three certifications necessary? UN38.3: The international passport for the safe transportation of lithium batteries. It includes eight tests (such as short…
DOD 80 and DOD 95 refer to Depth of Discharge (DoD) levels for batteries, with the numbers indicating the percentage of the battery’s capacity that is discharged. DOD 80 means 80% of the battery’s capacity is used before recharging, while DOD…
Comparison of the touch screen and button screen of the home solar energy storage LiFePO4 battery In summary, touch screens and button screens have their advantages in solar energy storage LiFePO4 batteries. Users can choose a more suitable product based…
Common photovoltaic controllers are mainly PWM and MPPT. Many friends have doubts about the difference between the two. Here we briefly explain. PWM: Pulse-Width Modulation Pulse width modulation (PWM) refers to the use of microprocessor digital output to control analog…
Owners and maintenance experts of photovoltaic power stations, are you often troubled by the “leakage fault” of the inverter? Especially in the humid rainy season, once the alarm message sounds, the power generation will stop directly, and the loss is…
Recently, I have received many private messages from customers saying that the screen of the inverter in the power station suddenly “blackened” and it would not light up even after tapping and hitting the screen, which made them panic. Today,…