Instructions

Electroair Acquisition Corp. Airplane Flight Manual Supplement
Waterford, MI EIS Back-up Battery System Panel
Eligibility per AML Number SA04586CH
Rev. 00 Document Number: AFMS EA-26000
Date: 12/21/2022 Page 8 of 10
Section 4: Normal Procedures
I. Preflight
Add the following series of steps:
1. Master Switch – OFF
2. Back-up Battery Panel Switch – READY (Verify amber “BATTERY IN USE”
LED illuminated)
3. Voltage – CHECK 12V system acceptable range: 12-15V
24V system acceptable range: 24-29V
NOTE
If voltage is less than the acceptable range, then charge
the back-up battery before continuing. Refer to back-up
battery manufacturer instructions on how to properly
charge the battery.
4. EIS Switches – ON (Verify that either EIS #1 or EIS #2 green LED
illuminated)
5. EIS Switches – OFF
6. Master Switch – ON
7. Amber “BATTERY IN USE” LED – EXTINGUSHED (Verify)
NOTE
This step confirms the main aircraft power is sufficient to
Energize the EIS. If the amber “BATTERY IN USE” LED
Remains illuminated, then the main aircraft voltage is
Insufficient (low). Resolved the issue before continuing.
8. Battery Backup Panel Switch – OFF Position
9. Master Switch – OFF
Continue AFM Preflight Procedures.