Car chargers all suck

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pishta

pishta

I know I'm right....
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Why is it so hard to create a true 2.1A 5v car charger? Isn't it just a step down transformer 13.5 to 5v with all the amps the phone will take? My little charger barely keeps up with the phone galaxy S7. Will have to jump on the inverters 115VAC wall plug to charge this friggin phone.
 
Can't transform DC to DC that I know of, so that means you're dumping power to ground, or interrupting power in some way, shape or form. Seems like the car has the wattage, so my guess is the cheapie components in the MIC charger are holding you back, but I'd think you're going to get ~5/13th's of the available wattage, too.
 
pishta said:
Why is it so hard to create a true 2.1A 5v car charger? Isn't it just a step down transformer 13.5 to 5v with all the amps the phone will take? My little charger barely keeps up with the phone galaxy S7. Will have to jump on the inverters 115VAC wall plug to charge this friggin phone.
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You might just need a better charging plug, and using the factory phone charge cable (or HIGH QUALITY aftermarket) actually makes a big difference in charge times. I have the same phone and was a delivery driver for a while (and a Lyft driver before that), needed solid in-car phone charging for those jobs.
 
get the amazon basics stuff. Always been good for me
 
Mine just the opposite on the Samsung OE 120v charger empty to full 3 hours. 12v in the truck full in 1 hour
 
Unconventional said:
Mine just the opposite on the Samsung OE 120v charger empty to full 3 hours. 12v in the truck full in 1 hour
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what DC charger are you using? I got a 5V/1.5A 120V plug into my inverter an picked up a percent every 2 minutes. My charge time went from 3.2 hours to 1.2 hours.....If my phone amp meter app is correct, it was only taking .520 A from the DC charger, even though the charger is port is 'rated' at 2.1A. Cheap *** crap...and it gets friggin hot too. Into the dumpster.
 
pishta said:
what DC charger are you using? I got a 5V/1.5A 120V plug into my inverter an picked up a percent every 2 minutes. My charge time went from 3.2 hours to 1.2 hours.....If my phone amp meter app is correct, it was only taking .520 A from the DC charger, even though the charger is port is 'rated' at 2.1A. Cheap *** crap...and it gets friggin hot too. Into the dumpster.
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Just a universal plug in with the appropriate micro USB male end.
 
I bought a cheapo, has 2 ports and 2 different amperages. Plugged in my phone on the lower one and my ihome on the higher one. Plugged into my tractor in quonset for tunes
For an entire day and it kept charge. Ok, maybe 5 hours.
If phone wasnt plugged in it would make 1 hour.
I use a radio station app,eats lots of battery.
 
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