18 Cirrus LT Plus User Manual v1.2 - Chapter 2
Optional dual battery support
Your Cirrus LT Plus may be equipped with a secondary internal Lithium Poly-
mer battery. This is a factory installed option and isn’t intended to be serviced or
removed by the customer.
Install the removable battery as indicated above.
Charging both the removable and internal batteries while the Cirrus LT Plus is
powered off will shorten the charging time to two hours. If the Cirrus LT Plus is
on, it will take approximately five hours to charge the unit.
If your Cirrus LT Plus is equipped with dual batteries, the external battery can
be changed without powering down, since the internal battery keeps the laptop
running.
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