Setting not using battery

Can I chose to use only my adapter as an electric source for my mac, instead of having to use up my battery to the end? So is there a setting where you can chose to not use the battery when the adapter is plugged in? Would be nice to be able to save your battery, when you can use an electric outlet most of the time anyway.
Thanks.

This is mostly true, but under extremely heavy load, the battery can be drawn upon even when the adapter is connected, because the computer may need more power than the adapter can supply. That condition can be prevented only by reducing the power demand of the computer. There is no way to disallow drawing on the battery for extra power when it's needed, other than by removing the battery (which may void your warranty, and will cause your CPU to slow down drastically to reduce power consumption.)

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