User manual

Figure 3.7.1: AFL test data for Genesis
®
16EP batteries
Similar tests on the Genesis
®
XE batteries showed an
average float life of 454 days at 55ºC, or the equivalent of
16.7 years at 25ºC to 80% of rated capacity. These results
validate the Genesis EP and XE published design life of
10 years and 12+ years, respectively, at 25ºC to 80% of
rated capacity.
Section 3.8: Performance test at different temperatures
Figure 3.8.1 shows the effect of temperature on the
discharge performance of Genesis batteries at three rates
of discharge. The vertical broken line represents 25ºC,
and its intersections with the graphs show the 100%
capacity at the three rates of discharge.
At –40ºC, the battery will run for 2 hours at the C
5 rate
(60% of its 5-hour capacity), for 18 minutes at the C
1 rate
(30% of its 1-hour capacity) and for 4 minutes at the
15-minute rate (27% of its 15-minute capacity). These are
excellent performance numbers, considering how low
the ambient temperature is.
Figure 3.8.1: Effect of temperature on capacity
Chapter 4:
Installation, Operation & Maintenance
4.1 Introduction
This chapter is designed to provide the user with
guidelines to help get the most out these batteries.
Even though VRLA batteries do not require the addition
of water, periodic maintenance checks are strongly
recommended. These are:
Individual unit voltages
Unit-to-unit connection resistances
Ambient temperature and battery temperat
ure
A load test can be carried out once or twice a year.
The batteries must be fully charged before any capacity
test is performed.
4.2 Receiving the shipment
All batteries must be carefully inspected upon arrival for
any sign of damage during their transportation.
Use rubber gloves when handling any that are broken or
physically damaged in case of acid leakage.
4.3 Storage
All Genesis batteries must be stored in a clean and dry
location, and preferably in a temperature-controlled
environment. Although these batteries are shipped fully
charged and may be stored for up to 2 years at 25ºC
periodic checks of their open circuit voltages are
recommended. The warmer the storage environment the
more frequent the voltage checks should be.
The batteries must be given a freshening charge once
every 2 years or when the OCV drops to 12.00V,
whichever occurs earlier. The freshening charge should
be for 96 hours at 13.62V at 25ºC or until the charge
current does not vary over a 3-hour period. Alternatively,
the freshening charge can be set at 14.4V for 16 to 24
hours or until the charge current does not vary over a 3-
hour period.
Failure to observe these conditions may result in greatly
reduced capacity and service life. FAILURE TO CHARGE
AS NOTED VOIDS THE BATTERY’S WARRANTY.
4.4 Installation
Batteries must be installed in a clean, dry area. Genesis
batteries release negligible amounts of gas during
normal operation (gas recombination efficiency ≥99%),
making them safe for installation near main equipment
and in close proximity to humans. Batteries must be
installed in accordance with BS 6133 or EN 50272.
Days at Temperature
0 50 100 150 200 250 300
21
18
15
12
9
Acceleration factor for 55°C:13.454
Capacities after 270 days (9.95 years at 25°C):
Sample 1: 16.42Ah (109%)
Sample 2: 16.22Ah (108%)
Sample 3: 16.49Ah (110%)
Genesis
®
16EP/AFL/55°C/2.27 VPC
C/5 (3.0A) to 10.02V/15Ah = 100%; 12Ah = 80%
Temperature, C
15 min. rate
1 hr. rate
5 hr. rate
-40
10
1
0.1
0.01
10
1
0.1
0.01
-30 -20 -10 0 10 20 30 40
100% capacity at 25C
Discharge time, hours Discharge time, hours
Chapter 4:
Installation, Operation & Maintenance
13
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