Type-C 15W 3A 18650 ליתיום מודול מטען DC-DC Step Up Booster טעינה מהירה ספק כוח UPS / ממיר 5V 9V 12V
צבע ומידה
תיאור
ביקורות 67
Work
The scheme is not working. With a load of 0.5A on a 5V board, the output voltage sags to 4.6V, at 1.0A - 4.35V, battery voltage 4.11V, at 1.5A - 4.1V, battery voltage 4.07V, at 2.0A - 3.75V, battery voltage batteries 4.04V. That is, there are no traces of 2A workers, not to mention 3A. The microcircuits do not heat up. Doesn't depend on the number of batteries 1-2. The batteries are 100% charged in the charger. When working from the network, the picture does not change. With a load of 1A, the output voltage is 4.37V, the input voltage at this time is 4.83V/1.96A. At 4.12V/1.5A output - 4.74V/2.47V input. Switching is visually seamless.
When the power supply was turned on, the U1 microcircuit smoked, the D3 diode lit up and went out, and the D6 diode started to glow. The voltage on the contacts +5V and -5V, +12V and -12V is normal, the batteries on the terminals +UPS and -UPS do not produce voltage.
18650 connected in parallel. BMS function is missing. Batteries discharged to 2.65 volts, which is unacceptable for 18650
