frontpage Posted by Navy-Wife | Staff • 2d ago
Jun 4, 2025 5:38 PM
Item 1 of 5
Item 1 of 5
frontpage Posted by Navy-Wife | Staff • 2d ago
Jun 4, 2025 5:38 PM
Rombica 2-Port Up to 75W Car Charger (1x USB-C, 1x USB-A) w/ 2-Pack USB-C Cables
& More$4.05
$8.99
54% offAmazon
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Our community has rated this post as helpful. If you agree, why not thank Dave_B
Looks like they're still selling the same model, and there's a father's day sale going on:
https://www.amazon.com/UGREEN-Cha...B0B3D9XW8
Looks like they're still selling the same model, and there's a father's day sale going on:
https://www.amazon.com/UGREEN-Cha...B0B3D9XW8
up vote, thanks
Check if your car power ports shut off when the car is off. Many modern cars do this.
and what do you mean, "if left unplugged"? If it's not plugged in, nothing will happen.
Looks like they're still selling the same model, and there's a father's day sale going on:
https://www.amazon.com/UGREEN-Cha...B0B3D9XW8
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Thus I was thinking Max capacity would be 120W. 130W is confusing to me but I cannot talk about current technology or marketing with decades old education.
and what do you mean, "if left unplugged"? If it's not plugged in, nothing will happen.
I see. Well, my car's power ports shut off when the car turns off, so I can't speak to that issue. Maybe check the Amazon customer reviews.
Thus I was thinking Max capacity would be 120W. 130W is confusing to me but I cannot talk about current technology or marketing with decades old education.
All the cars I've owned/driven have used 20 amp fuses for the power ports. So, theoretical max power would be 240 watts. However, no USB charger is 100% efficient, so I'd guess the actual power limit for USB charger output is closer to 190 watts.
If your car uses a 10 amp fuse, you'd risk blowing it with chargers outputting 100watts. The exact number depends on the charger efficiency.
Also, if you use the charger when the engine isn't running, the battery voltage will drop(as it's not being charged by the alternator) and the current being pulled from the port will increase(amps = watts/volts). So, your laptop could be pulling 100watts from the USB charger on a 10 amp fuse with no issues while the engine is running, but when you turn off the engine (or if auto engine stop activates) your fuse might blow. On a 20 amp fuse this shouldn't be an issue for a 130 amp changer.