13
SIM Card
The SIM card slot is located under the battery. Open the
battery compartment (see
) and then insert the SIM
card as shown below. Gently push the card to the right until
you hear a click.
To extract the SIM card, gently push it a bit further in. This
releases it from the slot. Just let go before extracting the SIM
card from the battery compartment.
Battery Model &
Battery
Compartment
The battery used is a Lithium-Ion 7.4-V DC - 3700 mAh
rechargeable battery. It is housed in a compartment
accessible from above the SP90m.
The battery door can be opened by lifting and then turning
the quarter-turn wing nut counter-clockwise.
The battery must first be inserted in the battery door (see
picture) and then you can close and lock the battery door. The
battery will smoothly connect to the receiver when closing the
battery door.
The battery will automatically operate as a backup power
source for the receiver if for some reason the external DC
source used was removed from the DC power input.
