This page contains information on the batteries or battery preservation possibilities available for the Nintendo Switch.
Though the Switch's battery does last a couple of hours, many consumers are looking for answers about the best way best to substitute the system's built-in battery -- either to bring along a spare for extended trips or even to replace a faulty and short-lived battery.
The bad news is that there is currently no way for a user to set up a new battery from your hand-held device or the Joy-Con controls. While Nintendo hinted in a paid battery replacement service prior to the launch of the program, it's yet to institute such a program. Nevertheless, if your battery fails, you should get in touch with Nintendo customer support and they'll swap the battery (or the device ) for a spare while under warranty and presumably for a fee once the guarantee is up.
If you are not in need of a full-size replacement, there are several ways that you may improve the longevity of the battery life when using the Nintendo Switch at home or out and about.
Your Switch utilizes Bluetooth wireless, and other features unless manually turned off. When you are playing on the move, you can disable a few of these features (or simply switch the machine to Airplane Mode) for the most life from your battery. Bluetooth is needed to play the Joy-Con detached, but you are fine without it in handheld mode.
Likewise, you are able to bring the brightness of your screen (press and hold the Home button for fast access) to produce the system continue. Note also that certain games have more battery power: any game with 3D graphics or other attributes that taxation processor or utilize peripheral attributes (multiplayer) will run down your battery quicker than simple 2D games.
When away from the dock, players can use a cell power supply to recharge their switch on the go. There are lots of models that use a Switch-native USB-C cable and port and offer enough mAh to charge the system while playing.