ENERSYS Ltd, NEWPORT
COMPONENT MAINTENANCE MANUAL
LEARJET PART NO.7624308001-003
ELN PART NO.9750R0824-Rev04
DESCRIPTION & OPERATION
1. Description
The EnerSys 24 volt 10 ampere-hour, Sealed Lead Acid Battery covered by this
Maintenance Manual (Ref.Fig.1) is used as the emergency battery for the standby
instrumentation on board Learjet 45 aircraft. It is also used to ensure that the
avionics bus-bar remains powered during engine starts. Its emergency power duties
include ensuring airspeed and altitude indicators remain operational as well as
supplying power to illuminate the essential displays.
The Battery consists of two 12 volt Sealed Lead Acid monoblocs connected in
series, enclosed in a metal outer case, which incorporates the battery main terminal
connector. The monoblocs are packed tightly into the outer case and secured by the
use of sheet rubber around the interior of the case and rubber hold down blocks
placed on top of the monoblocs.
Each monobloc incorporates a resealing safety valve to guard against the effects of
abusive use of the battery.
EnerSys Aerobatic Sealed Lead-Acid Aircraft Batteries are classified as Non-
Spillable and exempt from hazardous goods transportation requirements, in
accordance with :-
1) US Dept of Transportation - 49 CFR Section 173.159 para d.
2) ICAO/IATA Packing Instruction 806, Special Provision A67
.
3) IMDG Class 8, UN ID 2800, exemption for Non-Spillable batteries.
4) ADR 2003 and RID 2003 Special Provisions 238, 295 and 598
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24-01-03
Aug 25/04
