I offer for consideration another 12 volt UPS scheme for Internet equipment with autonomy of up to 12 hours at a load of 8-10 Watts.
Components:
Battery INR 18650 - 26E, (Li-ion 3.7V 2600mAh)
Power socket metal AC-DC 5.5x2.1 mother
XL4015 5A step-down converter with voltage and current regulation.
Step-up converter XL6019 DC-DC with regulation
BMS charge-discharge controller HX-2S-JH20 Li-ion battery 2S 10/20A 8.4V with balancer
10A05 (R-6) 10A, 500V LEAD DIODES
Digital voltmeter 4.5-30V LED voltage meter
The case is from an old ATX power supply unit from a computer
A handful of conductors and straight hands)
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11 фев 2023