Dell Vostro 1700 (Early 2009) - Manual (Page 57)

Using a Battery
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4 Slide and click the battery release latches to keep them open.
5 Slide the battery out of the bay.
To replace the battery, slide the battery into the bay until it latches into place.
Storing a Battery
Remove the battery when you store your computer for an extended period of
time. A battery discharges during prolonged storage. After a long storage
period, recharge the battery fully (see "Charging the Battery" on page 55)
before you use it.
1 battery 2 battery release latches (2)
2 1