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Wall Charger for Surge

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‎03-09-2016 04:52

‎03-09-2016 04:52

What is the safe limit output current (ampere) for a wall charger to charge the Surge? 750mA? 1A? 2A? 

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‎03-09-2016 12:49

‎03-09-2016 12:49

the Surge takes only that it needs.

no matter if the charger gives 700ma, 1A or 2A

i use a pc charger having also a 1.5A usb port

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‎03-10-2016 04:47 - last edited on ‎04-11-2025 06:13 by Fitbit Moderator

In response to SunsetRunner

‎03-10-2016 04:47 - last edited on ‎04-11-2025 06:13 by Fitbit Moderator

@Leekin Welcome to our Community! I would like to add that we suggest you only use UL certified charging bricks as these should provide the correct voltage. You can find an example from Amazon here.

Let me know how it goes!

Alvaro | Community Moderator

If a post helped you try voting and selecting it as a solution so other members benefit from it. Select it as Best Solution!

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‎06-02-2017 00:31 - last edited on ‎06-02-2017 10:43 by Moderator Alum

‎06-02-2017 00:31 - last edited on ‎06-02-2017 10:43 by Moderator Alum

 

I did a PRACTICE test with an USBport multimeter. So that's the results:

 

Charging device: Port idle/Fitbit Surge connected

 

USB Toshiba computer port: 5,19V/5,16V
USB Dell computer port: 5,19V/5,12V

APPLE 1A wall charger: 5,22V/5,22V

Garmin wall charger: 5,2V/5,19V

BQ 2A wall charger: 5,12V/5,06V

MI 10000mAh powerbank: 5,2V/5,14V

Internet router with USB port: 5,32V/Not tested

LG 5V 1,2A wall charger: 4,98V/5,00V

 

Uncertyfied China wall chargers idle (tracker was already fully charged so not tested while charging): 4,98V and 5,2V.

 

The current stays ALWAYS(!!!) stable at the level of 0,07A (NO MATTER WHICH DEVICE WE USE) for the whole period of charging and drops to zero in the last phase.
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For people who do not understand what I wrote above I'll make it short and clear: IT IS BETTER TO CHARGE YOUR DEVICE WITH LG 1,2A or BQ 2A WALL CHARGER THAN WITH USB 2.0 (USB 2.0 should give ~0,5A) of Your computer. Chine stuff without LU certificate look also better that an UL Garmin charger that I got with my Forerunner110.


Best regards

Marcin

 

Moderator's edit: Format

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