I'm a bit of an idiot when it comes to these things, so please help - HotUKDeals
We use cookie files to improve site functionality and personalisation. By continuing to use HUKD, you accept our cookie and privacy policy.
Get the HUKD app free at Google Play

Search Error

An error occurred when searching, please try again!

Login / Sign UpSubmit

I'm a bit of an idiot when it comes to these things, so please help

virus Avatar
8y, 6m agoPosted 8 years, 6 months ago
I have several bits of kit which charge via USB from a computer - a TomTom, an MP3 player etc.

Can I use the car charger that came with the TomTom to charge the MP3 player; can I use the mains charger that came with the MP3 player to charge the TomTom? What am I looking for - volts, watts, positive, negative?

I don't want to blow the units, but I don't want to buy extra chargers if the ones I have will suffice.
virus Avatar
8y, 6m agoPosted 8 years, 6 months ago
Options

All Comments

(3) Jump to unreadPost a comment
Comments/page:
#1
As long as the connection at the other end of the USB matches up, I don't see it being a problem. I frequently use the same lead if all the connections are the same and never had any problems
#2
rd1701
As long as the connection at the other end of the USB matches up, I don't see it being a problem. I frequently use the same lead if all the connections are the same and never had any problems


yea you need to check the outputs as i have done this a few times and bricked the wroung batteries. I used my usb charger from my ipod to charge xox batteries, big mistake now they both dont work.

:x
#3
If all the devices you are talking about have a usb plug on them and you are charging them through that USB plug then their power requirement will be identical: 5V at less than 500mA because the power output from a PC's USB socket is 5V at a maximum 500 mA. They will also use the same standard pins on the USB connector - because that's what's on a PC. So you should be able to use a USB charger from one with another.

However, if the devices have a different input for charging from their own supply then they might use different voltages or draw different current through different pins on that connection. For example a rechargable device might charge slowly from USB but more quickly from its own mains power supply because its own power supply uses a higher voltage or supplies more current. It might also use different polarity on the connector.

With power supplies you are looking to match the voltage, match the polarity (+/-) and ensure that the device connected draws fewer Amps or milliamps than the max rating of the power supply. USB has that built into the standard but if you use a supply designed for another connector then you have to check it all yourself or you run the risk of damaging the device, the power supply or both.

Post a Comment

You don't need an account to leave a comment. Just enter your email address. We'll keep it private.

...OR log in with your social account

...OR comment using your social account

Thanks for your comment! Keep it up!
We just need to have a quick look and it will be live soon.
The community is happy to hear your opinion! Keep contributing!