ICON A5 MM : Electrical System : Battery : Maintenance Instructions : Charge Battery
Charge Battery
100081-02
Use this procedure to boost-charge the aircraft battery.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
Owner/Pilot
Task Specific Training Required
No
Special Tools Required
BatteryMINDer® Model 128CEC2-AA-S5
Parts Required
None
Aircraft System
03—Electrical System
Safety Equipment
As Needed
Consumables
None
IPC Reference
Warning: 
Do NOT jump start the aircraft.
See Concorde RG Series Component Maintenance Manual, l 5-0171 for additional information on trickle charging.
Task Instructions
1. If the aircraft is stored in a temperature-controlled environment (away from sunlight exposure, below 68°F), minimal battery discharge is expected. However, if the aircraft operates infrequently (e.g., less than once or twice a month), then a maintenance "trickle" charger is recommended.
2. If the aircraft is not stored in a temperature-controlled environment, it should be kept on a maintenance "trickle" charger or charged regularly in accordance with Table 9
3. If the charge cannot be maintained through regular use, temperature control, or a trickle charge, check the battery voltage prior to each flight.
a. If the measured battery OCV is bellow 12.5V, the battery is subject to a condition check. (See the Concorde RG Series Component Maintenance Manual, 5-0171, Page 106 “Capacity Test Procedure”, for additional information on performing the condition check.)
CAUTION: 
Until the condition check passes, the aircraft shall not be flown. Due to the time required to complete the condition check and fully charge the battery, it is recommended that this be done 1-2 days prior to a planned flight.
Table 9. Charging Frequency for Non-Temperature-Controlled Environments
Battery Temperature
Charging Frequency
Charging Duration
Below 15°C (59°F)
Once every 4 months
72 - 96 hours
15 - 35°C (59 - 95°F)
Once every 2 months
48 - 72 hours
Above 35°C (95°F)
Once every month
24 - 48 hours
Verification Method
Turn the master switch ON. Verify that the BATTERY indicator does not stay lit in the annunciator panel.
Note: 
If the battery requires charging after normal aircraft operation, the battery may be faulty and must be replaced.Battery Diagnostic