539CH1
®
ULM Ultra Low Maintenance
Nickel-Cadmium Aircraft Battery
Saft is a leader in providing completely
reliable low maintenance, low life-cost
Ni-Cd batteries for commercial, busi-
ness and military aircraft operation, with
guaranteed service.
ULM
®
batteries
are the latest genera-
tion offering lower life cost by extend-
ing the duration of maintenance free
operations. They match dimensions of
standard products in form, fit and func-
tion thereby providing an
easy retrofit
solution.
Approved by Boeing
as an upgrade
solution for the 4579 battery.
Key features
• Extended battery service life
• Increased capacity
• Commonality with other Boeing air-
craft
Electrical characteristics
Nominal voltage
Nominal capacity
Recommended constant charging voltage
Dimensions
Length
Width
Height
Weight
280 mm max
331 mm max
Key benefits
•
•
•
•
Lower life-cycle costs
Longer maintenance free periods
From 750 oph to 2500 oph
Standardized inventory leads to re-
duced cost
24 volts
53 Ah at 1 hour rate
28.5 volts
Applications*
Fixed wing aircraft
Boeing 737-600, -700, -800, -900
Boeing 747-400, -400F
Boeing 757-200, -300
Boeing 767-200, -300, -400ER
Boeing 767-400
*Must be used in conjunction with the EL-
DEC 8-930 battery charger
331 mm / 13 in
280 mm / 11 in
290 mm / 11.4 in
43.5 kg / 96 lbs
Saft
12, rue Sadi Carnot
93170 Bagnolet - France
Tel: +33 (0)1 49 93 19 18
Fax: +33 (0)1 49 93 19 56
Saft America, Inc.
711, Industrial Blvd
Valdosta
Georgia, 31601 - USA
Tel: +1 (229) 247 2331
Fax: +1 (229) 247 8486
Doc. n° 22041-2-0311
March 2011
Data in this document is subject to change with-
out notice and become contractual only after
written confirmation by Saft. Proprietary infor-
mation. Any duplication or reproduction without
authorization of Saft is strictly prohibited.
www.saftbatteries.com
Société par Actions Simplifiée au capital de 31 944 000 € - RCS Bobigny B 383 703 873 - SM11 - Photo DR - Published by Communication Department
290 mm max
SAFT [ saftbatteries ]
