1.1.
Applications of Ni/Cd aircraft batteries
HAWKER
®
airborne batteries are used for:
• starting engines or APUs,
• operations on ground and in flight
• emergency back up.
1.2 Features and designation of the
battery
1.2.1. THE BATTERY
The 24V battery is made up of 20 cells connected in series,
which are assembled in a battery case. The battery
container and the lid are typically made of stainless steel.
Some battery types have a container of stainless steel and
a lid of polymer material. The interior container walls are
lined with heat resistant plastic plates. The lid is lined with
a ribbing, which acts as a pressure pad for the cells. The
electrical connector typically is mounted on the front of the
battery container; but on some battery types the electrical
connector is mounted at the side. It enables electrical
connection of the battery to the power supply system. All
batteries can be additionally fitted with heater and
temperature sensors or temperature sensors only.
6
1. Maintenance Manual for the HAWKER
®
Ni/Cd
Airborne Battery – Purpose and Use
Figure one: Batteries
The manual describes the processes
for trained technicians to maintain
Hawker
®
nickel-cadmium airborne
batteries. It informs about their basic
design features and details structured
tasks for visual inspection, diagnostic,
testing, performance reconditioning,
repair and the necessary care to
maintain best endurance and useful
life of these batteries.
Trained staff only should have access
to the manual, which always shall be
of latest revision and kept in good
condition by the battery owner.
Number of cells
Number of cells
Battery Capacity
Battery with thermostats
Number of thermostats
Special designed batteries
Cells designed for high rate applications
20
20
25 H1C (BER)1T
FP
F
Type of electrodes
Type of electrodes
Elements of the Battery designation:
The Hawker
®
aircraft battery designations
consist of the following elements
The document reference is online, please check the correspondence between the online documentation and the printed version.
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