Odyssey Extreme Series, Техническое руководство

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Publication No: US-ODY-TM-AA September 2016
www.odysseybattery.com
15
PARASITIC LOADS
With the proliferation of more and more electronic
equipment in cars, trucks, motorcycles and powersports
equipment, the phenomenon of parasitic loads is becoming
a serious problem.
Parasitic loads are small currents, typically of the order
of a few milliamps (mA) that the battery has to deliver
continuously. Retaining memories and operating security
systems are common examples of parasitic drains on
batteries in modern systems.
On the surface it would seem that such small loads would
not be a factor in the overall scheme of things. However,
since parasitic loads can be applied on a long-term basis
(weeks or months is not uncommon), the cumulative amp-
hours (Ah) extracted from the battery can be signifcant.
For example, a 10mA draw on a motorcycle battery will
discharge it by 0.24Ah per day. If left unchecked for 30
days, that small 10mA parasitic load will discharge a 20Ah
battery by 7.2Ah – a 36% depth of discharge (DOD).
Regardless of the application, it is important to make sure
your battery does not have a parasitic load; if there is a slow
drain, connect the battery to a foat (trickle) charger that
puts out between 13.5V and 13.8V at the battery terminals.
Physically disconnecting one of the battery cables is an
alternate method to eliminate the drain.
SHOCK, IMPACT AND VIBRATION
TESTING
Table 2: Shock and vibration test results per IEC 61373
Test Standard Requirement Result
Functional IEC 61373, 5-150Hz, 0.1g
rms
vertical, Compliant
random Section 8, 0.071g
rms
longitudinal,
vibration Category 1, 0.046g
rms
transverse; 10
Class B minutes in each axis
Long-life IEC 61373, 5-150Hz, 0.8g
rms
vertical, Compliant
random Section 9, 0.56g
rms
longitudinal,
vibration Category 1, 0.36g
rms
transverse; 5
Class B hours in each axis
Shock IEC 61373, 30msec. pulses in
Compliant
Section 10, each axis (3 positive,
Category 1, 3 negative); 3.06g
peak
Class B vertical, 5.1g
peak
longitudinal, 3.06g
peak
transverse
CHARGING ODYSSEY
®
BATTERIES
Charging is a key factor in the proper use of a rechargeable
battery. Inadequate or improper charging is a common
cause of premature failure of rechargeable lead acid
batteries. To properly charge your premium ODYSSEY
®
battery, EnerSys
®
has developed a special charge algorithm.
It is designed to rapidly and safely charge these batteries.
Called the IUU profle (a constant current mode followed by
two stages of constant voltage charge), Figure 6 shows it in
a graphical format. No manual intervention is necessary with
chargers having this profle.
Figure 6: Recommended three-step charge profle
(A) Caterpillar™ 100-hour vibration test
In this test, a fully charged battery was vibrated at 34±1
V
oltage
Charge current
Charge voltage
Bulk charge
(RED)
Bulk charge
(RED)
8-hour absorption charge
(ORANGE)
8-hour absorption charge
(ORANGE)
Continuous float charge
(GREEN)
Continuous float charge
(GREEN)
14.7V (2.45 Vpc)
NOTES:
1. Charger LED stays RED in bulk charge phase (DO NOT TAKE BATTERY OFF CHARGE)
2. LED changes to ORANGE in absorption charge phase (BATTERY AT 80% STATE OF CHARGE)
3. LED changes to GREEN in float charge phase (BATTERY FULLY CHARGED)
4. Charge voltage is temperature compensated at ±24mV per battery per ºC variation from 25ºC
Amps
13.6V (2.27 Vpc)
0.4C
10
min
Hz and 0.075" (1.9mm) total amplitude in a vertical
direction, corresponding to an acceleration of 4.4g. The
test was conducted for a total of 100 hours. The battery is
considered to have passed the test if (a) it does not lose any
electrolyte, (b) it is able to support a load test and (c) it does
not leak when subjected to a pressure test.
The ODYSSEY
®
battery successfully completed this arduous
test.
(B) Shock and vibration test per IEC 61373, Sections 8-10
An independent test laboratory tested an ODYSSEY
®
31-PC2150 battery for compliance to IEC standard 61373,
Category 1, Class B, and Sections 8 through 10. Section
8 calls for a functional random vibration test, Section 9
requires a long-life random vibration test and Section 10 is
for a shock test. Table 2, in the next column summarizes the
test results.
If the charger has a timer, then it can switch from absorption
mode to foat mode when the current drops to 0.001C
10
amps. If the current fails to drop to 0.001C
10
amps, then the
timer will force the transition to a foat charge after no more
than 8 hours. As an example, for a PC1200 battery, the
threshold current should be 4mA. Another option is to let
the battery stay in the absorption phase (14.7V or 2.45 VPC)
for a fxed time, such as six to eight hours, then switch to
the continuous foat charge.