You can test the battery by just using the thing and seeing how long the battery lasts in playtime. You can buy a new battery directly from Nintendo for just $15. Leave your system on sleep mode. See how long it takes to die.
A bulged battery means there is pressure building up inside the battery. You should also know that lithium battery is a fire hazardous goods. Letting the battery pop = terrible outcome.
Nintendo 3DS Batteries & Chargers | GameStop.
Important: A #00 cross-head (+) screwdriver will be required to change the battery pack on the Nintendo 3DS, Nintendo 3DS XL, and Nintendo 2DS. A #0 cross-head (+) screwdriver will be required to change the battery pack on the New Nintendo 3DS XL.
The system can be left on the charging cradle while not in use to ensure that the system is fully charged. Leaving the system on its charging cradle, plugged in directly overnight, or past the point where the battery is fully charged will not cause harm to the battery.
The battery life for the New Nintendo 3DS is from 3.5 to 6 hours, while the battery life for the New Nintendo 3DS XL is from 3.5 to 7 hours. Here's how that battery life stacks up against the old 3DS, which has a battery life of 3 to 5 hours.
Battery Pack (New Nintendo 3DS XL, Nintendo 3DS XL)
You'll need a small phillips tip screwdriver (not included) to open the battery compartment before you can replace the battery. A maximum of 2 lithium ion batteries per order.Also work with a power bank. 6amLifestyle 10FT
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On the New Nintendo 3DS only the front cover plate is removable. On the New Nintendo 3DS XL only the back cover plate is removable.
Go to a Walgreen's/CVS or equivalent in your area and look for an eyeglass repair kit. They usually come with a very small flat-head screwdriver and cost something like $2. Use it, then give it to a friend with glasses.
Complete These Steps
- Open the SD Card slot cover. On the original Nintendo 3DS the SD card slot is located on the left side of the system.
- Gently push on the SD Card until it clicks.
- Release the card and it will partially eject.
- Slide the SD Card out of the system.
- Close the SD Card slot cover.
Complete these steps
- Place the system on a flat stable surface.
- Use a size #0 cross-head (+) screwdriver to loosen the screws from the back cover plate.
- Use the nub on the end of the stylus to gently pry on the small slots on each side near the L and R buttons.
- Attach the new back cover plate and tighten the two screws.
The standard (small) New Nintendo 3DS supports faceplate swapping (the New 3DS XL does not). To do this, all you need are the new faceplates, the New 3DS Stylus, and a small + screwdriver. Use the back of the stylus to pry off the front face plate by placing it in the grooves to the side. Replace it with the new one.
Open the SD card slot cover.
- For Nintendo 3DS, the SD card slot is located on the left side of the system.
- For Nintendo 3DS XL and Nintendo 2DS, the SD card slot is located on the right side of the system.
- For New Nintendo 2DS XL, the microSD card slot is located on the front side of the system.
Insert the new SD card into your 3DS and turn it on. Once it has created the folder structure, power down and remove the new SD card and insert it into your computer. Navigate to the data folder and copy your backup folder into the proper parent folder. Then, go to the eShop and redownload any games you want.
You can play your Nintendo 3DS while the unit is charging by plugging the charger directly into the 3DS. This is good news for fans of the handheld device because the Nintendo battery charge doesn't last a long time.
There is no need to drain it completely before charging so don't worry. It is actually bad to let it discharge itself fully but your 3DS should automatically put itself to sleep before that point. You can overcharge a lithium ion battery but most devices have a protection circuit to prevent that.
Avoid Using Suspend and Sleep Mode
If you close your 3DS while you're playing a game — or after hitting the Home button to return to the home screen without closing the game — that game will stay suspended in the background. These features use up more battery life.How Long Will the Battery Remain Charged?
| System | Using Nintendo 3DS software | Using Nintendo DS software |
|---|
| Nintendo 3DS XL | 3.5 - 5.5 hours | 6 - 10 hours |
| Nintendo 2DS | 3.5 - 5.5 hours | 5 - 9 hours |
| New Nintendo 3DS | 3.5 - 6 hours | 6.5 - 10.5 hours |
| New Nintendo 3DS XL | 3.5 - 7 hours | 7 - 12 hours |
The New 3DS XL has the longest battery life at 3.5 hours with 3D turned on and 7 hours with the 3D turned off. The New 3DS, on the other hand, offers the same 3.5 hours of 3D playtime, but only 6 hours with everything turned down.
Yes. The higher the 3D enabled, the more power it slowly drains from the battery.
How Long Will the Battery Remain Charged?
| System | Using Nintendo 3DS software | Using Nintendo DS software |
|---|
| Nintendo 3DS | 3 - 5 hours | 5 - 8 hours |
| Nintendo 3DS XL | 3.5 - 5.5 hours | 6 - 10 hours |
| Nintendo 2DS | 3.5 - 5.5 hours | 5 - 9 hours |
| New Nintendo 3DS | 3.5 - 6 hours | 6.5 - 10.5 hours |
It's due to the MIiverse and NNID portion of the update, most likely having to sign out or something when you shut it off.
The orange light only turns on while your system is plugged in, and will only turn off once the system is fully charged. In short, if your 3DS is plugged in, and you see an orange light, it's NOT fully charged. If your 3DS is plugged in, and you DO NOT see an orange light, it IS fully charged.
