S201 AFM
7 - AIRPLANE AND SYSTEMS
DESCRIPTION
7.11 - ELECTRICAL SYSTEM
27/06/2019
SONAIR-S2-D-MAN-006
Page : 7-87
Rev. : A
7.11.3
BATTERY
The 12 V battery is mounted on the engine side of the firewall in a fireproof
insulated box. It is a gel-type battery that does not require specific maintenance.
NOTE
Alternator 1 does not charge the battery below 3000 RPM. ALT 2 Master
Switch must be on during warm-up and taxiing to ensure positive charge and
prevent battery depletion.
NOTE
Battery life is optimal when stored in cool temperatures (0-30 °C). To
prevent premature battery failure, avoid as much as possible parking in
direct sunlight on hot days.
Battery deep discharge will result in battery failure. Always stop Master
Switch when engine is off and voltage indicates below 10 V and charge
battery immediately.