EnerSys HAWKER 9750F0530 User manual

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Löwenstrasse 32Löwenstrasse 32
8001 Zürich8001 Zürich
SwitzerlandSwitzerland
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Fax: [phone]Fax: [phone]
EnerSys LtdEnerSys Ltd
Stephenson StreetStephenson Street
NewportNewport
South WalesSouth Wales
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Phone: [phone]
Fax: [phone]
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Fax: [phone]
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Enersys_Lead_Acid_Batteries_Maintenance_Manual_July-2014 9602-0421_revision_5
Sealed Lead
Acid Batteries
Aircraft Battery
Maintenance Manual
UK
© 2014. All rights reserved.
Sealed Lead
Acid Batteries
Aircraft Battery
Maintenance Manual
UK

Revision
No.
Issue Date &
Change No.
Insert Date By Revision
No.
Issue Date Insert Date By
03 Feb 96
04 Mar 06
05 Apr 14 (MRA005/14)
2
Copyright
This document and all information contained herein is the property of EnerSys®. Its use is restricted solely to the
maintenance of Hawker®Sealed Lead Acid batteries referenced in Appendix A.
IMPORTANT
Please read this manual immediately on receipt of the battery(ies) before unpacking and installing. Failure to comply
with these instructions will render any warranties null and void to the extent permitted under applicable law. The
manufacturer has not created any obligations under this manual in the event the battery is damaged or destroyed as a
result of any misuse or not following the instructions
@ 2014 EnerSys. All rights reserved. Trademarks and logos are the property of EnerSys and its affiliates unless otherwise
noted.

TABLE OF CONTENTS
ABBREVIATIONS
3
TITLE PAGE ...............................................................1
COPYRIGHT..............................................................2
RECORD OF REVISIONS ..........................................2
TABLE OF CONTENTS..............................................3
ABBREVIATIONS.......................................................3
1. SCOPE ............................................................4
2. INTRODUCTION..............................................4
3. BATTERY DESCRIPTION ................................4
4. SAFETY INSTRUCTIONS................................5
5. SPECIFICATIONS........................................ 6-7
5.1 CAPACITY .......................................................6
5.2 TEMPERATURE EFFECT.................................6
5.3 STATE OF CHARGE ........................................7
6. STORAGE........................................................7
7. CONDITION OF BATTERIES ON
RECEIPT/ACCEPTANCE CHECKS .................8
8. COMMISSIONING PROCEDURES
& INITIAL TESTING AFTER STORAGE ....... 8-9
8.1 VISUAL INSPECTION......................................9
8.2 VOLTAGE CHECKS .........................................9
9. CHARGING PROCEDURE ............................10
10. ROUTINE MAINTENANCE ............................10
11. SERVICE PERIOD .........................................11
12. CAPACITY TEST............................................11
13. REJECTION PROCEDURE............................12
14. DEEP DISCHARGE RECOVERY ...................12
15. UNSCHEDULED REMOVAL FROM
AIRCRAFT......................................................12
16. TRANSPORTATION .......................................13
17. SPARE PARTS...............................................13
18. RE-BLOCKING PROCEDURE.......................14
19. BATTERY RECORD CARD ............................15
20. DISPOSAL.....................................................15
APPENDIX A - Battery Applicability Chart ..............16
APPENDIX B - Battery Commissioning Flowchart..17
APPENDIX C - Battery Maintenance Flowchart......18
A Amperes
AGM Absorbed Glass Mat
Ah Ampere-hour
CV Constant voltage
OCV Open Circuit voltage
TPPL Thin Plate Pure Lead
V Volts
VRLA Valve Regulated Lead Acid

The manual describes the processes for trained technicians to maintain Hawker®sealed lead acid batteries as dened
in appendix A, and covers their basic design features, maintenance, storage, transportation and ultimately the disposal
requirements of the battery.
Only trained staff should have access to the manual, which always shall be of latest revision and kept in good condition
by the battery owner.
The Hawker®battery is a valve regulated lead acid (VRLA)
system, using absorbed glass mat (AGM) to retain the
electrolyte. The battery operates on the principle of gas
recombination resulting in minimal gas evolution during
normal operation. The battery is fully compatible for use
on aircraft, which may perform aerobatic manoeuvres.
The battery is maintenance free with respect to electrolyte
replenishment. Under no circumstances should any
attempt be made to interfere with construction or
introduce any substances, e.g. acid, distilled water or
alkali, to the battery.
The Hawker®24 volt aircraft battery covered by this
maintenance manual consist of two 12 volt valve
regulated monoblocs connected in series, enclosed in a
polyester bonded breglass case which incorporates the
battery main terminal connector. The monobloc design
is based upon a Thin Plate Pure Lead (TPPL), valve
regulated, lead acid system.
Each 12 volt monobloc consists of six 2 volt cells
internally connected in series to make a 12 volt block.
The individual 2 volt cells are not replaceable. The cells
within the monoblocs are interconnected with through-
the-partition-wall weld connections.
The cells are manufactured with proprietary VRLA AGM
technology that can deliver high performance engine start
capability in excess of 50C1amps at normal temperature
and superb durability under emergency load conditions.
Thin berglass separators are placed between the
positive and negative plates. The tightly packed
plates and separator form a compressed and rugged
construction, which enhances the battery’s resilience to
vibration.
1. SCOPE
4
2. INTRODUCTION
3. BATTERY DESCRIPTION

4. SAFETY INSTRUCTIONS
• Pay attention to the operating instructions and keep them close to the battery.
• Work on batteries must only be carried out by skilled personnel!
• Use protective glasses and wear safety clothing when working on batteries.
• Adhere to the current accident prevention rules in the country where the battery is used.
• No smoking!
• Do not expose batteries to naked ames, glowing embers or sparks, as it may cause the battery
to explode.
• Avoid sparks from cables or electrical apparatus as well as electrostatic discharges.
• Acid splashes into the eyes or on the skin must be washed immediately with an abundance of
clean water. After abundant ushing consult a doctor immediately!
• Clothing contaminated by acid should be washed in water.
• Electrolyte is highly corrosive.
• In the normal operation of this battery, contact with acid isn’t possible. If the cell containers
are damaged, the immobilised electrolyte (absorbed in the separator) is corrosive like liquid
electrolyte.
• Batteries and monoblocs are heavy.
• Use suitable transportation/lifting equipment.
• Risk of explosion and re.
• Avoid short circuits: do not use non-insulated tools, do not place or drop metal objects on top of
the battery. Remove rings, watches and articles of clothing with metal parts that might come into
contact with the battery terminals.
• Avoid short circuits: Hawker TPPL batteries are capable of high short circuit currents.
• Caution - metal parts of the battery are always live: do not place tools or other objects on the
battery!
• Pay attention to the hazards that can be caused by batteries.
5

6
Figure 1- Temperature effect
5. SPECIFICATIONS
The gure 2 illustrates the relationship between battery capacity and temperature. A reduction in capacity and
performance will be experienced as the temperature falls from the nominal operating temperature. Conversely, as
the temperature increases the capacity and performance of the battery will also increase. These conditions are not
permanent; the capacity will be restored as the temperature returns to the nominal operating temperature range.
5.1 CAPACITY
The capacity of Hawker®VRLA aircraft battery is rated in ampere-hours at the 1-hour rate (AhC1). An 18 ampere-hours
battery will sustain an 18-ampere discharge for 1 hour down to a battery voltage of 20 volts. By conventional denition,
the battery is deemed airworthy if it delivers its rated capacity for 48 minutes down to a voltage of 20 volts at +20°C
i.e. 80% nominal C1capacity.
5.2 TEMPERATURE EFFECT
The ideal environmental temperature range for battery operation is 23°C to 25°C; temperatures outside this range have
an effect on the life and performance of the battery. These effects are detailed in gure 1:
-40°C to 22°C 23°C to 25°C 26°C to 50°C
Reduced Capacity
Undercharge
Reduced life
Optimum life &
Performance
Increased Capacity
Overcharge
Reduced life
Figure 2 - Battery capacity as a function of temperature
20
30
40
50
60
70
80
90
100
110
120
130
-50 -40 -30 -20 -10 0 10 20 30 40 50 60
Percentage Performance @ 20oC
Temperature (°C)
Battery Capacity (C1) as a Function of Temperature (oC)

7
5.3 STATE OF CHARGE
The open circuit voltage of the battery prior to service can be used as an approximate guide to the state of charge of
the battery. Figure 3 shows the relationship between open-circuit voltage and the state of charge of a new battery after
24 hours or more after recharge.
Note! That state of charge is not the same as available capacity. A battery at end-of-life and fully charged will show
an OCV of 26.0V approximately but have an available capacity of 80% of rated capacity.
6. STORAGE
The battery/re-blocking kit should be stored, fully
charged, in a cool dry place, ideally below 25°C. The
battery/re- blocking kit charge retention will be reduced
and possible performance degradation will occur if it is
subjected to long-term exposure well in excess of this
temperature.
The battery/re- blocking kit has a maximum inspection-
free storage life of two (2) years, if stored at or below
20°C, after which a boost charge should be administered
in accordance with paragraph 9. However, it is advisable
to conduct an inspection and open circuit voltage check
after 12 months and top-up charge in accordance with
paragraph 9 if necessary.
The battery/re-blocking kit may be stored up to ve (5)
years without degradation of performance provided that
an inspection and open circuit voltage check is conducted
every 12 months. When stored in temperatures in excess
of 25°C the battery/re-blocking kit should be inspected
every 6 months, and top-up charged in accordance with
paragraph 9 should the open circuit voltage fall below
25.5 volts for an assembled battery or 12.75 volts for
individual monoblocs.
Should the battery be returned to storage following in
service use, it must be fully recharged in accordance
with paragraph 9 and if possible packed in original
packaging.
Figure 3 - Open circuit voltage as a function of state of charge
23.6
23.8
24.0
24.2
24.4
24.6
24.8
25.0
25.2
25.4
25.6
25.8
26.0
0 10 20 30 40 50 60 70 80 90 100 1
10
Open Circuit Voltage (OCV), V
State of Charge (SOC), %
Open Circuit Voltage (OCV) as a Function of State of Charge (SOC)
for 24 Volt Aviation Batteries

8
7. CONDITION OF BATTERIES ON RECEIPT
/ACCEPTANCE CHECKS
All batteries as dispatched are in a fully charged
condition, the date of the latest charge being marked on
the outer packaging and on the battery instruction label.
If the battery is received within three months of the latest
charge, the only acceptance check required immediately
upon receipt is inspection of the box for damage during
shipping. The battery does not have to be unpacked.
If the box is damaged from shipping, unpack the battery
to inspect for any damage. If damage to the battery is
found, contact the shipper immediately.
If the battery is received 4 months or longer after the
latest charge, unpack the battery to perform a voltage
check in accordance with paragraph 9.
The battery labels show: -
• Type of battery (i.e. Lead acid - aerobatic)
• Manufacturer’s name
• Manufacturer’s type or product number
• Manufacturer’s serial number
• Date of manufacturer’s last charge
• Modication state
• Positive terminal polarity
• Nominal battery voltage and number of cells
• Rated capacity
• Safety instructions - where applicable
Warning!
Short circuit currents will exceed 2000 amps; all tools must be insulated. Care must be taken with all items
of metal in clothing and jewellery, e.g. buckles, zips, rings, watches, chains etc.
Caution!
Always ensure that the battery lid is securely fitted prior to charging.
Monobloc terminal nuts are NOT to be re-tightened.
8. COMMISSIONING PROCEDURES &
INITIAL TESTING AFTER STORAGE
(Refer to Battery Commissioning Flowchart Appendix B)
Note!
1. A dedicated lead acid battery room is not required for servicing. A normal electrical workshop may
be used and under certain conditions the battery can be serviced in a nickel cadmium battery room
providing an appropriate risk assessment is performed.
2. Use a calibrated digitial voltmeter with a DCV accuracy of 0.3%, to carry out Open Circuit voltage (OCV)
checks.
3. All discharges must be in accordance with the rates detailed in Figure 5. Discharges should be
discontinued as soon as a duration of 48 minutes or an end point of 20V is achieved (see section 12).
This prevents excessive working of the battery and prolongs its life.

9
8.1 VISUAL INSPECTION
Visually inspect the exterior of the battery and receptacle for signs of damage, cracks or corrosion. If any defects are
found, pack the battery in its original packaging and reject the battery in accordance with paragraph 13.
8.2 VOLTAGE CHECKS
8.2.1 Measure the open circuit voltage (OCV).
8.2.2 If the open circuit voltage is in excess of or equal to 25.5 volts, the capacity is at least 80% and the
battery can be issued for service.
8.2.3 If the OCV is greater than 25.3 volts but lower than 25.5 volts the battery needs to be charged.
8.2.3.1 Charge the battery in accordance with procedure dened in paragraph 9.
8.2.3.2 On completion of the recharge, allow the battery to stand open circuit for a minimum of 4 hours.
8.2.3.3 If the OCV equals 25.5 volts or greater the battery can be issued for service.
8.2.4 If the OCV is equal to or less than 25.3 volts but greater than 20.0 volts, the battery
needs to be charged.
8.2.4.1 Charge the battery in accordance with paragraph 9.
8.2.4.2 On completion of the recharge, allow the battery to stand open circuit for a minimum of 4 hours.
8.2.4.3 Perform a capacity test, in accordance with paragraph 12.
8.2.4.4 If the battery fails to achieve 80% capacity (48 minutes) after charging and a capacity test, it can be
recharged and tested a second time.
8.2.4.5 If the battery achieves at least 80% capacity.
8.2.4.5.1 Record the capacity and date of test.
8.2.4.5.2 Charge the battery in accordance with paragraph 9.
8.2.4.5.3 Issue the battery to service.
8.2.4.6 If the capacity fails to achieve 80% capacity after two (2) charges and capacity tests, reject the battery
as per section 13.
8.2.5 If the battery is less than 20 volts then it is considered to be in a deep discharge state and must be
treated in accordance with paragraph 14.

10
This manual only covers Constant voltage (CV) charging
because CV charging is the preferred method. Every
effort should be made to charge Hawker® VRLA AGM
batteries with constant voltage. If constant current
charging is the only available option, please contact
EnerSys Technical Support for guidance.
Charging should be performed in the battery work
shop where the ambient temperature is maintained
between 20ºC and 30ºC. The battery/re-blocking kit
can be charged outside this temperature window if a
temperature compensated charger is used.
Charge the battery / re-blocking kit at a constant voltage
of 29.0 volts for an assembled 24V battery or 14.5 volts
for individual monoblocs with a charger capable of
delivering a minimum of 10 amps. Charge time depends
on the rated capacity of the battery and the maximum
current available from the charger.
The higher the available current the faster the battery will
recharge, typical duration values are shown in Figure 4.
Figure 4 - Constant Potential Charging Times
9. CHARGING PROCEDURE
10. ROUTINE MAINTENANCE
(Refer to Battery Maintenance Flowchart Appendix C)
10.1 Visually inspect the exterior of the battery casing for signs of damage and cracks. Examine the battery
terminal for signs of damage, corrosion, and water/dirt ingress; clean as necessary. Always ensure that
the battery lid is securely tted prior to charging.
10.2 Measure and record the OCV using a calibrated digital multi-meter.
10.2.1 If the OCV measures greater than 25.5 volts, test the battery in the “as found” condition and continue
with step 10.3.
10.2.2 If the OCV measures greater than 20.0 volts but less than 25.5 volts, charge the battery per Section
9.0 and continue with step 10.3.
10.2.3 If the OCV measures 20.0 volts or less refer to deep discharge decovery document number 9602-6298
(which is available from EnerSys Technical Support), as the battery is considered to be in a deeply
discharged state.
10.3 Perform a capacity test per Section 12.
10.3.1 If the result of the capacity test is greater than 80% (48 minutes), continue with step 10.4.
10.3.2 If the result of the capacity test is 80% or less, recharge battery per section 9.
10.3.2.1 Repeat the capacity test as per section 12.
10.3.2.1.1 If the battery fails to make 80% capacity after two (2) capacity tests reject the battery per Section 13.
Battery Capacity Charge Duration (hours)
@ 10 A @ 20 A @ 30 A
18 ampere-hour 4 3 2
25 ampere-hour 6 5 4
37 ampere-hour 8 7 6
40 ampere-hour 8 7 6

The servicing period varies with aircraft type and application. However, the earliest servicing requirement will be 6
months after commissioning unless otherwise directed by the aircraft operators and / or regulatory bodies.
At the appropriate service point remove the battery from its installation to the battery test room.
Figure 5 - Discharge Rates
11. SERVICE PERIOD
12. CAPACITY TEST
10.3.2.1.2 If the result of the second capacity test is greater than 80% continue with step 10.4.
10.4 Record the capacity and date of test on the battery label.
10.5 Recharge battery per section 9.
10.6 Ensure the battery is clean and return the battery to service.
Battery Rating Discharge current
18 ampere-hour 18 amps
25 ampere-hour 25 amps
37 ampere-hour 37 amps
40 ampere-hour 40 amps
11
Capacity testing is performed by discharging the battery with a constant current load at the one-hour rate and measuring
the time required (in minutes) to reach the cut off voltage.
Discharge the battery at the appropriate constant current value found in Figure 5 at 20 ± 2°C to an end voltage of 20
volts or 48 minutes whichever occurs rst. Record the terminal voltage at the end of the discharge.
Note! Discharge duration should not be allowed to exceed 48 minutes
If the discharge duration of 48 minutes is achieved, recharge the battery as detailed in paragraph 9. Record the test
result on the battery label and return to service.
If the discharge duration is less than 48 minutes, recharge the battery in accordance with paragraph 9. Allow the battery
to stand open circuit for a minimum of 4 hours before conducting a second capacity test.
If the discharge duration is in excess of 48 minutes, recharge the battery in accordance with paragraph 9. Record the
test result on the battery label and return to service.
If this second discharge duration is still below 48 minutes the battery should be rejected in accordance with paragraph
13 of this maintenance manual.

If a defect has been noticed during the visual inspection stage of commissioning, quarantine the battery in its original
packaging and notify EnerSys of the defect.
If the battery fails to attain a 48 minute run time (80% capacity) after two discharge tests and has been in service
for more than two (2) years, it should be considered non-serviceable. Recycle or otherwise properly dispose of the
battery. Refer to section 18 for disposal options.
If the battery fails to attain a 48 minute run time (80% capacity) after two discharge tests and has been in service for
less than two (2) years, recharge the battery in accordance with paragraph 9 and notify EnerSys or your distributor
of failure.
If the battery has an OCV of less than 20 volts it is considered to have been abused. Over discharging the battery to
this extent is not recommended and can cause severe damage. In the event of a battery being in a deep discharge
state the deep discharge recovery procedure for aircraft batteries document number 9602-6298 (which is available
from EnerSys Technical Support) must be followed.
In normal service this battery should not need to be removed from the aircraft between service intervals. If the battery
has been removed prior to a schedule service refer to the routine maintenance procedure as detailed in paragraph 10.
13. REJECTION PROCEDURE
14. DEEP DISCHARGE RECOVERY
15. UNSCHEDULED REMOVAL FROM
AIRCRAFT
12

Classication of transportation for Hawker®aircraft batteries are detailed in gure 6.
Hawker®aircraft batteries consists of two 12-volt monoblocs encased in an outer case with removable lid.
The two 12 volt monoblocs can be replaced; however they must be replaced in pairs supplied by EnerSys®as part
of a re-blocking kit. Lock nuts and internal battery connectors are supplied as part of the re-blocking kit and must be
replaced at the same time.
Re-blocking kits can be purchased from EnerSys®or their appointed distributors, and can be installed by the purchaser
(Refer to Paragraph 18).
See Appendix A for Re-blocking Kit details.
16. TRANSPORTATION
17. SPARE PARTS
Land Transport Land Transport (ADR/RID, U.S. DOT)
- UN N°: UN2800
- Classication ADR/RID: Class 8
- Proper Shipping Name: BATTERIES, WET, NON SPILLABLE electric storage
- Packing Group ADR: not assigned
- Label required: Corrosive
- ADR/RID: New and spent batteries are exempt from all ADR/RID (special provision 598).
Sea Transport Sea Transport (IMDG Code)
- UN N°: UN2800
- Classication: Class 8
- Proper Shipping Name: BATTERIES, WET, NON SPILLABLE electric storage
- Packing Group: III
- EmS: F-A, S-B
- Label required: Corrosive
- If non-spillable batteries meet the Special Provision 238, they are exempted from all IMDG
codes provided that the batteries’ terminals are protected against short circuits.
Air Transport Air Transport (IATA-DGR)
- UN N°: UN2800
- Classication: Class 8
- Proper Shipping Name: BATTERIES, WET, NON SPILLABLE electric storage
- Packing Group: III
- Label required: Corrosive
- If non-spillable batteries meet the Special Provision A67, they are exempted from all IATA
DGR codes provided that the batteries’ terminals are protected against short circuits.
Figure 6
13

18. RE-BLOCKING PROCEDURE
Note! Prior to re-blocking the battery, check the integrity of the battery case, lid, connector and lid seal. Renew if
damaged or showing signs of deterioration.
When re-blocking a battery ensure that the correct re-blocking kit is used. i.e. denoted by ampere-hour rating.
Warning!
Short circuit currents will exceed 2000 amps; all tools must be insulated. Care must be taken with all items
of metal in clothing and jewellery, e.g. buckles, zips, rings, watches, chains etc. Failure to pay attention to
this warning could result in serious injury or death. Battery and monoblocs are “live” throughout this
procedure.
Follow the instructions below carefully: -
a) Ensure that all parts of the re-blocking kit are present.
b) Remove and retain the four lid screws and washers.
c) Remove and retain the lid.
d) Remove and discard the nuts, washers and metal strip laminations from the rear monobloc terminals.
e) Remove and discard the nuts and washers from the front terminals and lift off the laminations.
Note! Do not remove the front laminations from the main battery connectors.
f) Remove the expended monoblocs and replace with the new monoblocs.
g) Reconnect the front laminations using the nuts and washers provided in the re-blocking kit. Tighten the
terminal nuts using a calibrated torque wrench set to 3.9 Nm 35 pound-force inch (lbf-in).
Note! Over tightening the terminal nuts may result in fracturing of terminal posts.
h) Connect the rear laminations across the back two terminal posts of the monoblocs using the nuts and
washers provided in the re-blocking kit. Tighten the terminal nuts using a torque wrench set to 3.9 Nm
(35 pound-force inch (lbf-in)).
i) Replace battery case lid, nger tighten all four lid screws prior to torque tightening to 1.0 Nm (9 pound-force
inch (lbf-in)).
Note! Over tightening of the screws will cause cracking of the battery case around the screw location
holes.
14

19. BATTERY RECORD CARD
20. DISPOSAL
A battery record card must be kept for each individual battery.
This card should show as a minimum: -
i. Battery part number and serial number
ii. Date of last charge by manufacturer
iii. Date of receipt
iv. Date of commission
v. Date of installation on aircraft
vi. Date and results of periodic routine maintenance or unscheduled maintenance
vii. Date of battery returned to storage
viii. Date of any failures
ix. Date of any returns to manufacturer
x. OCV prior to any discharge
Dispose of the battery in accordance with local regulations. If in doubt contact:
EnerSys Newport
Stephenson Street
NEWPORT
South Wales
UK
NP19 4XJ
Tel [phone]
Fax [phone]
A Control of Substances Hazardous to Health statement and Instructions for the safe handling of Lead-Acid batteries
are available from EnerSys®Ltd. on request.
15

A
ppendix A
Battery Applicabil
ity List
This Maintenance Manual covers the following aircraft batteries
Mk.1
Product No.
Mk.2
Product No. Capacity
Ah C1
Terminal
Voltage
Connector
Type
Vents Max
Weight (kg)
9750F0530
37Ah
24V
Elcon
None
38.0
9750F0531
37Ah
24V
Elcon
2
38.0
9750F0532
37Ah
24V
Canon
None
38.0
9750F0533
37Ah
24V
Canon
2
38.0
9750F0538*
37Ah
24V
Elcon
2
38.0
9750F0539
37Ah
24V
Elcon
2
38.0
9750F0540
37Ah
24V
Canon
2
38.0
9750F0542*
37Ah
24V
Elcon
2
38.0
9750F0544
37Ah
24V
Elcon
None
38.0
9750E0640
975
0E0654
25Ah
24V
Elcon
None
27.0
9750E0645
25Ah
24V
Elcon
1
27.0
9750E0647
9750E0652
25Ah
24V
Elcon
1
27.0
9750E0650
25Ah
24V
Spade
None
27.0
9750E0658
25Ah
24V
Canon
1
27.0
9750E0660
25Ah
24V
Canon
None
27.0
9750E0750
25Ah
24V
Elcon
1
27.0
9750E0751
9750E0653
25Ah
24V
Elcon
1
27.0
9750D0730
18Ah
24V
Elcon
None
19.0
9750D0734
18Ah
24V
Spade
None
19.0
9750D0736
18Ah
24V
Spade
None
19.0
9750D0738
18Ah
24V
Canon
None
19.0
9750D0740
18Ah
24V
Canon
2
19.0
9750D0741
9750D0722
18Ah
24V
Canon
2
19.0
9750D0742
18Ah
24V
Elcon
2
19.0
9750D0744
18Ah
24V
Spade
2
19.0
9750D0745
18Ah
24V
Spade
2
19.0
9250-0090
18Ah
18.0
9250-0083
25Ah
25.0
*Ce
ssna Caravan
16

A
ppendix B
Battery Commissioning Flowchart
Visual
Inspection
Measure &
Record OCV
Capacity test as
per paragraph
12.0
Record
Capacity &
Date of test
Follow Rejection
procedure as per
paragraph 13.0
Issue Battery
Reject battery
Charge
battery as per
paragraph 9.0
Charge
battery as per
paragraph 9.0
Charge
battery as per
paragraph 9.0
≥ 25.5 Volts
>25.3 & <25.5 Volts
≤25.3 Volts & > 20
Stand for
4 hours
< 48 minutes
Second Time
< 48 minutes
First time
≥ 48 minutes
Stand for
4 hours
Stand for
4 hours
Measure &
Record OCV
Charge
battery as per
paragraph 9.0
17

Appendix C
Battery Maintenance Flowchart
Visual
Inspection
Measure OCV
Charge
battery as per
paragraph 9.0
< 20 Volts
Return to service
Record
Capacity and
date of test
Charge
battery as per
paragraph 9.0
< 48 minutes
Second time
< 48 minutes
First time
> 48 minutes
Capacity test as
per paragraph
12.0
Stand for
4 hours
Follow Rejection
procedure as per
paragraph 13.0
Reject
battery
> 25.5 Volts
> 20 < 25.5 Volts
Charge
battery as per
paragraph 9.0
Battery is in a
deeply
discharged state.
Refer to Deep
discharge
procedure Doc
No. 9602-6298
Stand for
4 hours
18

19
Intentionally Left Blank

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