How much battery does a 3DS use up on standby with streetpass on?

I have my 3DS in my coat when I walk to work, to get play coins and catch any potential street passes on the way in. I'll usually leave it sitting in my coat while I work, so I can take it back out for more at lunch and again at the end of the day.
However it's not clear whether or not I'm using up a lot of battery this way, especially as it's left sitting in my pocket for hours while I just work. Does anyone have any information on how power hungry standby/streetpass are?
Best Answer
According to this IGN Article, all versions the 3DS and the 2DS should have a battery life of about three days when in sleep mode.
Here is a simple chart comparing all the major differences between the three major Nintendo 3DS models:
Battery Life Nintendo 2DS Nintendo 3DS XL New Nintendo 3DS XL 3DS gaming: 3.5-5.5 hours 3-5.5 hours 3.5-7 hours DS gaming: 5-9 hours 6-10 hours 7-12 hours Sleep Mode: 3 days 3 days 3 days
You can find an archived copy of the original source here. It appears to have been published by an official Nintendo website, so it should be reliable.
Pictures about "How much battery does a 3DS use up on standby with streetpass on?"



How much battery does 3DS use in Sleep Mode?
How Long Will the Battery Remain Charged?SystemUsing Nintendo 3DS softwareSleep modeNintendo 2DS3.5 - 5.5 hours3 daysNew Nintendo 3DS3.5 - 6 hours3 daysNew Nintendo 3DS XL3.5 - 7 hours3 daysNew Nintendo 2DS XL3.5 - 6.5 hours3 days2 more rowsHow long does a 3DS last on low battery?
It generally lasts around 15-30 minutes depending on whether WiFi, 3D, and other things are on.Does using 3D on 3DS use more battery?
The amount of power you get out of your Nintendo 3DS battery depends on which features you have turned on and to what level. For example, using the 3D function on the 3DS drains the battery quicker than playing games in 2D.How long does a full 3DS battery last?
I am playing with level 5 brightness and no wifi. Also this new 3ds is like 1 month old so still barely new as far as battery. Overall battery lasted 4 HOURS with about 45 MINUTES (if I had not connected it to charge again before it died completely).Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Pixabay, Ron Lach, Dids, RODNAE Productions