5.1 Short-term storage of charged
batteries
Maintained and charged batteries can be stored for 3
months at ≤35°C in a secured area.
Refer to Task 5.1 - Storage of maintained (overhauled)
charged batteries up to 3 month.
The batteries shall be stored:
• without being trickled charged
• in upright position
• with vents tightened
• with the lid locked on the battery case,
• plastic caps are mounted on both pins of the
connector
• in a well-ventilated or air-conditioned room
between 10°C and 35°C and a relative humidity
between 45 and 75%
• protected from dust, moisture, corrosive gases
and excessive heat
• in an area with authorised access, only.
Prior to installing the battery on the aircraft, it shall be
recharged for 7 hours with a constant voltage of 1.425
V per cell.
After 3 months storage the battery shall be subjected
to quarterly maintenance.
18
5.0 Storage Tasks for airworthy batteries
5.2 Long-term storage (up-to 5 years) of
discharged batteries
Batteries can be stored between 3 months and 5 years
only in a discharged state.
Refer to Task 5.2 for long-term storage preparation
procedures.
The batteries shall be stored:
• Always in maintained and discharged condition
• in upright position
• with vents tightened
• with the lid locked on the battery case
• plastic caps are mounted on both pins of the
connector
• in a well-ventilated or air-conditioned room
between 10°C and 35°C and a relative humidity
between 45 and 75%
• protected from dust, moisture, corrosive gases
and excessive heat
• in an area with authorised access, only.
W
hen returning the battery back into service, carry out Task
5.3 “Commissioning of prolonged stored batteries”.
Task 5.1 – Storage of maintained (overhauled) charged batteries up to 3 month
OPERATING INSTRUCTION AND TECHNICAL REQUIREMENTS (TR) INSTRUCTIONS / EVIDENCE WHEN DEVIATIONS FROM TR
1. Carry out the scheduled maintenance procedure on the battery,
either Task 7.2 or Task 7.3.
2. Store the battery in a ventilated room at temperatures
recommended 10°C and 35°C and at relative humidity between
45% and 75%.
3. If returning the battery to service within the 3 months storage time,
recharge with a constant voltage of 1.425 V per cell at 20°C ± 5°C
without opening the vents.
If the charged battery is stored for longer than 3 months and shall
be returned to service, subject it to quarterly maintenance
procedure Task 7.2.
4. If required, release the battery to service according to Task 3.3.
The document reference is online, please check the correspondence between the online documentation and the printed version.
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