
7
U.S.A. HEADQUARTERS
P.O. Box 1306, Newport Beach, CA 92663
Phone: 714-751-0488 Fax: 714-957-1621
EURO WAREHOUSE
Phone:+31-35-603-2494
Fax:+31-35-603-2149
Telecom Power Products
www.newmartelecom.com
Constant Current Performance (Amps) to 1.75 VPC @ 25° C
(Note: N/R = Not Recommended)
Number of Battery Modules
Model Run Time One Two Three Four Five Six
BM-48-4 5 Minutes 11.6 23.2 34.8 40 max. N/R N/R
15 Minutes 6.4 12.8 19.2 25.6 32.0 38.4
30 Minutes 4.0 8.0 12.0 16.0 20.0 24.0
1 Hour 2.2 4.4 6.6 8.8 11.0 13.2
2 Hours 1.4 2.8 11.0 4.2 5.6 7.0
4 Hours .8 1.6 2.4 3.2 4.0 4.8
8 Hours .17 .34 .50 .67 .84 1.0
24 Hours .5 1.0 1.4 1.9 2.4 2.9
BM-24-8 5 Minutes 23.2 40 max. N/R N/R N/R N/R
15 Minutes 12.8 25.6 38.4 40 max. N/R N/R
30 Minutes 8.0 16.0 24.0 32.0 40.0 max. N/R
1 Hour 4.4 8.8 13.2 17.6 22.0 26.4
2 Hours 2.8 5.6 8.4 11.2 14.0 16.8
4 Hours 1.6 3.2 4.8 6.4 8.0 9.6
8 Hours 1.0 1.9 2.9 3.8 4.8 5.8
24 Hours .34 .67 1.0 1.3 1.7 2.0
BM-12-16 5 Minutes 40 max. N/R N/R N/R N/R N/R
15 Minutes 25.2 40 max. N/R N/R N/R N/R
30 Minutes 16.0 32.0 40 max. N/R N/R N/R
1 Hour 9.6 19.2 28.8 38.4 40 max. N/R
2 Hours 5.6 11.2 16.8 22.4 28.0 33.6
4 Hours 3.0 6.0 9.0 12.0 15.0 18.0
8 Hours 1.9 3.8 5.8 7.7 9.6 11.5
24 Hours .67 1.3 2.0 2.7 3.4 4.0
If the installation requires longer run time or higher current draw than shown in this chart, please
contact the factory for additional options.
B) Load Testing the Batteries
All batteries are subject to a certain loss of capacity over time. The rate of capacity loss will
depend on a number of factors such as age, ambient temperature and number of charge/dis-
charge cycles. Therefore, in order to guarantee that the batteries will provide the required back-
up in an emergency loss of AC power, it is recommended that they be periodically load tested to
verify sufficient back-up capacity. This test will also serve the valuable function of “exercising “
the batteries, which contributes to longer life.
The first load test should be performed as soon as possible after installation. The results should
be recorded in section V as a benchmark for comparison to all future test results. The batteries
must begin fully charged for the test to be accurate. If unsure about the relative state of the
batteries, allow the rectifier to run for 24 hours with no load and the circuit breaker on the front
panel of the Battery Module in the "ON" position. For the most accurate results, each battery
module should be tested separately.
Note: This test procedure assumes an installation with a standard rectifier without built-in voltmeter
and with the load and battery module connected to the output of the rectifier. Adjust the procedure
as necessary to suit the system configuration. If the Battery Module is used in conjunction with a