Apple Color StyleWriter 2200 - Manual (Page 66)

Replacing the battery
If you notice that the battery attachment is no longer holding a charge as it
should, even after you’ve discharged the battery and given it a complete
charge, you may need to replace the battery. You may also want to replace the
battery so that you can continue to work under battery power if you’re not
immediately able to charge the old battery. To replace the battery, follow
these steps:
1 Turn the printer off and close the printer cover.
If the power adapter is connected, disconnect it from the printer.
2 Turn the printer and the battery attachment upside-down.
You can leave the Apple System/Peripheral-8 cable connected to the printer.
WARNING Do not touch the battery contacts with metal objects such as
paper clips or keychains. Doing so can cause burns or start a fire.
When not using the battery attachment, you should remove the battery
and store it. If the battery remains in the attachment, a small amount of
battery power is consumed, which over time will reduce the battery’s
charge.
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