My car battery gets dead if I don't use the car for 10 days or more. Is it possible to charge it using 12v 2A power supply of my dth set top box. ? EDIT: Just measured the voltages using DMM. Car battery=12.06 V and DTH Set Top Box suppy=12.43 V.
13 comments. Best. Add a Comment. markus_b • 3 yr. ago. There are USB C trigger circuits to make the UBC power adapter output 12V. But to charge your lead acid battery you need 13.8V not 12V, so this will not work. There are USB PD adapters who can output an arbitrary voltage, but they are rare.
Your 12v adapter would only be able to raise the battery voltage to 12v, but to charge a car battery fully you would need to raise the voltage to 13.8v. The 16v adapter would raise the voltage too high and could cause damage.
There is a rumor unspoken rule : the slower charge the better battery, it seems charging current is around C/10 and
Park your car in a safe and level spot; Turn off all lights and accessories; Locate the 12V socket, typically found on the dash or center console; Insert the charging adapter into the socket, then plug the other end into the wall outlet or cigarette lighter port; Check your car's owner's manual to
Today i'm going to show you How to Make 12v Battery Charge. With this charge you can charge any type of 12 v battery even your car battery. it is very necessary in cold days because battery drains out very quickly . This Charger features 2 step Charging 1. Constant Current 2. Constant Voltage . it is very safe and stable for daily use "it's
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charge car battery with 12v adapter
