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Specifying a Safe For My Use DC-DC Converter

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=145519
Printed Date: April 25, 2024 at 8:03 PM


Topic: Specifying a Safe For My Use DC-DC Converter

Posted By: lloydpdx
Subject: Specifying a Safe For My Use DC-DC Converter
Date Posted: July 15, 2019 at 1:47 AM

Thanks in advance for reading. First post, with only a basic understanding of power. I’m probably overthinking this, but...

I use a powerbank to run or recharge various devices including battery chargers and audio recorder. On occasion (camping, etc) I’d like to be able recharge the depleted powerbank from my vehicle’s 12v system. Seems most efficient to do this via a DC converter rather than the supplied ac adapter and an inverter. Not wanting to fry the good quality and not inexpensive powerbank, I want to understand what specs to look for in a suitable accessory outlet DC-DC converter.

The powerbank specs are: capacity 20400mAh, input voltage 4.5-36V (power>1w), AC output 120v or HVDC150v, DC output adjustable 1-24v, usb outputs 5v and usb quick charge 3.0.
The ac switching adapter output is labeled as 19v — 2.37A. Center pin +

The vehicle accesory outlet measures 13.4-14.6v depending on whether the engine is running. I’m sure this overage is expected or required for the system, how does this affect a converter? I assume I need a regulated converter?

Thanks in advance for your observations and experience.

-------------
Lloyd, in Oregon USA



Replies:

Posted By: lloydpdx
Date Posted: July 15, 2019 at 1:48 AM
The vehicle is a Toyota 2001 RAV4.

-------------
Lloyd, in Oregon USA




Posted By: i am an idiot
Date Posted: July 15, 2019 at 4:35 AM
No converter needed. It says input voltage of 4.5 to 36 volts.





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