The Nintendo 3DS's battery life is described by Nintendo3DS.com below:
"When playing Nintendo 3DS software about 3-5 hours. When playing Nintendo DS software about 5-8 hours. Battery duration differs depending on the brightness setting of the screen. The information regarding battery duration is a rough standard. It can be shorter depending on what functions of the Nintendo 3DS system are used."
At the lowest screen brightness, the Nintendo DS can get up to 18 hours of battery life from a full charge. For most practical applications, however, at highest brightness, the actual average battery life is between three and four hours at full charge.
yes you do waste battery and also if you leave it there to long the battery will die
The Nintendo DS Lite Battery is a Lithium Ion Battery. They are known mainly for their long lifetime compared to other kinds of rechargeable batteries on the market. The Nintendo website claims that it can be recharged upwards of 500 times before running out.
8 hours
The expected battery life for this laptop is about 4 hours.
The Nintendo Wii nunchuk battery lasts for about ten hours of normal use.
The Nintendo DS battery has been made to be recharged around 500 times, after which the battery life will be 70% of its maximum charge. The length at which a rechargeable battery will last depends on how frequently you charge it. For older devices, it is usually recommended to allow the battery to drain as much as possible before recharging.
It takes four hours of charging
The battery life for the Dell Inspiron Mini 9 provides over 4 hours of battery life.
According to research, the Energizer brand LED light provides a long battery life. It is also better to use an LED as it does not use as much battery life.
There is not exact battery life you can download an app but mostly the battery life depends on what you do with it
The battery life of a mini DV player averages about 2 to 3 hours of filming per full battery charge. It really depends on what you think of as a long battery life for such a small device.