Author Topic: Why does my Flir i5 charging so slow? (Solved)  (Read 2481 times)

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Offline sam1275Topic starter

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Why does my Flir i5 charging so slow? (Solved)
« on: January 31, 2017, 04:46:13 pm »
Hello.
I got my Flir i5 as mint from ebay, the camera itself is pretty new, even with the factory screen protector on, but it only come with a multi-volt 3rd-party charger, and it don't even have the 5v option on the switch... So I cut off the power connector with the cord, and throw the charger away, then I wired the cord to a USB cord, thus made a USB charging cable myself.
However I found it charges really slow, a full charge takes about 6 hours, today I just left it on my PC's USB 3.0 for 3 hours, and it charges only half. So is this normal? How long does your Flir ix charging?
Thanks.
« Last Edit: February 01, 2017, 11:33:21 am by sam1275 »
 

Offline Pinkus

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Re: Why does my Flir i5 charging so slow?
« Reply #1 on: January 31, 2017, 08:02:08 pm »
without USB enumeration you will get 500mA max. from your PC. That is why it takes so long: the battery has a capacity of 2800 mAh. Divide this by 500mA charging current and you will get your 6 hours.
 

Offline georges80

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Re: Why does my Flir i5 charging so slow?
« Reply #2 on: February 01, 2017, 12:52:21 am »
Actually pre-enumeration means 100mA maximum - not that most PCs or laptops would actually limit current to that level anyway...

The charging limit is likely 500mA anyway since that's a safe amount to draw from a USB 1.0/2.0 etc jack. That limit will be self imposed by the charger within the Flir to be compatible with most USB charging sources. These are instruments that are assumed to not cause usability issues if they take many hours to charge unlike a cell phone that most users get upset if they take more than 1 hour to charge.

cheers,
george.
 

Offline sam1275Topic starter

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Re: Why does my Flir i5 charging so slow?
« Reply #3 on: February 01, 2017, 01:22:38 am »
Thank you everyone. So will it be faster if I connect it to a USB charger? Will the camera still use 500ma only?
 

Offline layws

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Re: Why does my Flir i5 charging so slow?
« Reply #4 on: February 01, 2017, 02:30:51 am »
Thank you everyone. So will it be faster if I connect it to a USB charger? Will the camera still use 500ma only?

You can try use Apple USB charger. And i5 power off charger faster than the power on.
 

Offline sam1275Topic starter

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Re: Why does my Flir i5 charging so slow?
« Reply #5 on: February 01, 2017, 11:32:59 am »
Okay thank you everyone, I just wanted to know if it's a abnormal behavior, good to know it's normal.
 


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