Odyssey PC1200 Owner's Manual - page 23
15
Publication No: US-ODY-TM-001 - April 2011
Table 2: Shock and vibration test results per IEC 61373
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 profile (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 profile.
figure 6: Recommended three-step charge profile
If the charger has a timer, then it can switch from absorption
mode to float 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 float charge after no
more than 8 hours. As an example, for a PC1200 battery,
the threshold current should be 44mA. Another option is to
let the battery stay in the absorption phase (14.7V or 2.45
VPC) for a fixed time, such as 6-8 hours, then switch to the
continuous float charge. Table 3 shows three charger design
variations, all based on the basic three-step profile shown in
Figure 6.
Table 3: Three-step charger design options
Charge Phase & feature
Bulk
Absorption Timer
Trigger
float
charge
charge
current, A charge
Design 1
Yes
Yes
Yes
0.001C
10
Yes
Design 2
Yes
Yes
Yes
No trigger
Yes
Design 3
Yes
Yes
No
0.10C
10
Yes
In Design 1, the charger has a timer and a current threshold
that triggers the switch from absorption charge to float
charge. Because the charger has a timer override, the
charge current is set at a low value. If the charge current
does not drop to 0.001C
10
amps within 8 hours on
absorption charge, then the timer will force the charger to
switch to a temperature-compensated float charge.
The charger does not have a current trigger in Design 2.
Rather, the timer forces the charger to stay in the absorption
phase for a fixed time (8 hours) before allowing it to switch
down to a temperature-compensated float charge.
Because the charger in Design 3 does not have a timer, the
threshold current to trigger the switch from the absorption
phase to the temperature-compensated float charge phase
is kept relatively high. Note that in this design the battery
will not be fully charged when the charger switches to the
float charge phase. A minimum of 16-24 hours on float will
be required to complete the charge.
Table 4 shows the minimum charge currents for the full
range of ODYSSEY batteries when they are used in deep
cycling application. When using a charger with the IUU
profile, we suggest the following ratings for your ODYSSEY
battery. Note the charger current in the bulk charge mode
must be 0.4C
10
or more. A list of chargers approved by
EnerSys for use with ODYSSEY batteries is available at
www.odysseybattery.com under FAQs.
Table 4: Battery size and minimum three-step charger
current
Charger
Recommended ODySSEy
®
Battery Model
rating, amps
6A
PC310 / PC535 / PC545 / PC625 / PC680
10A
PC925 or smaller battery
15A
PC1200 or smaller battery
25A
PC1500 or smaller battery
25A
PC1700 or smaller battery
40A
PC2150 or smaller battery
50A
PC2250 or smaller battery
Small, portable automotive and powersport chargers may
also be used to charge your ODYSSEY battery. These
chargers are generally designed to bring a discharged
battery to a state of charge (SOC) that is high enough to
crank an engine. Once the engine is successfully cranked,
its alternator should fully charge the battery. It is important
to keep in mind the design limitations of these small
chargers when using them.
®
Test
Standard
Requirement
Result
functional
random
vibration
IEC 61373,
Section 8,
Category 1,
Class B
5-150Hz, 0.1g
rms
vertical,
0.071g
rms
longitudinal,
0.046g
rms
transverse; 10
minutes in each axis
Compliant
Long-life
random
vibration
IEC 61373,
Section 9,
Category 1,
Class B
5-150Hz, 0.8g
rms
vertical,
0.56g
rms
longitudinal,
0.36g
rms
transverse; 5
hours in each axis
Compliant
Shock
IEC 61373,
Section 10,
Category 1,
Class B
30msec. pulses in
each axis (3 positive,
3 negative); 3.06g
peak
vertical, 5.1g
peak
longitudinal, 3.06g
peak
transverse
Compliant
www.odysseybattery.com
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
V
oltage
Amps
13.6V (2.27 Vpc)
0.4C
10
min