Type-C 15W 3A 18650 Lithium Battery Charger Module DC-DC Step Up Booster Fast Charge UPS Power Supply / Converter 5V 9V 12V
Colour and size
No-delivery refundQuality guaranteeSecure logisticsPrivacy protectionDescription
Reviews 94
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.
The item is as pictured. Everything is fine and works. Connected to a router with 2x 2200 mAh batteries. The charge lasts for 6-8 hours. You buy the batteries yourself, they are not included.
18650 connected in parallel. BMS function is missing. Batteries discharged to 2.65 volts, which is unacceptable for 18650
I checked it, it works great, I think I can add more batteries in parallel so it lasts longer.
The product was as ordered, packed in several wrappers, arrived quickly. Thank you.
Everything works perfectly. Even the +, - signs are indicated so that you don't have to wash them. Thank you.
liked it. but the choice is not right. will order for 12v.
Well packaged, I recommend the seller.
It works, everything is fine.
I haven't tried yet
Class
