6
CHARGE PROGRAM
Protection
BMS reset
2
1
Charger will not proceed without user interaction.
LED #2 REVERSE POLARITY: Lights when the battery connections
are incorrect. The charger is electronically protected so no damage will
result, and the output will remain disabled until the connections are
corrected.
BMS RESET: for batteries with a battery management system (BMS) that
protects against deep discharge. Disconnect the charger from mains supply.
Wait for LED #1a/1b to go out. Reconnect to mains supply. A special BMS
reset pulse is delivered for up to 5 seconds. The program should continue to
STEP 4.
STEP 1
Low Volt Start
≥ 0.5V
V
Battery voltage check - OptiMate Lithium automatically activates
if connected battery voltage is at least 0.5 Volt.
STEP 2
TEST before
charge
STEP 3
Temperature
check
TEST LEDs
6 : GREEN
7 : YELLOW
8 : RED
TEST
8
7
6
TEST LEDs #6/7/8 indicate the battery condition prior to charging. Consult the
table on page 2 to match TEST LED indication to an estimated state of
charge percentage (SOC%).
During the test:
OPTIMIZE minimum charge time is set according to the test result, varying
between 10 minutes for a battery with 80% or higher state of charge to 120
minutes
for a battery with 40% or less state of charge.
Ambient temperature is measured to determine charge voltage parameters.
LOW TEMPERATURE WARNING - LED #8 (red) flashing: The temperature
measured at OptiMate Lithium is below -20 degrees Celcius or 4 degrees
Fahernheit, below the safe charging AND discharging zone for LiFePO
4
batteries.
Charging commences after 10 seconds.
8
7
6
90 100%603010%
13.3V 13.6V+ 13.13V13.00V12.80VV
8
7
7
6
0
0.5V
STEP 4
ULTRA LOW
VOLT SAVE
STEP 5
LOW VOLT SAVE
STEP 6
TEST - cell
damage
LED #3 : RED
3
IMPORTANT: If this mode engages read the section VERY FLAT
NEGLECTED BATTERIES on the preceding page.
This mode engages
if the battery was more than 90% discharged / voltage
is below 12.8V safeTº: Charge current is automatically adjusted according
to voltage and ambient temperature measured during the test.
VERY LOW VOLTAGE SAVE for batteries between 0.6V and 8.8V :
Current starts at 125mA and will increase to 325mA depending on charge
progress. If the voltage did not rise above 8.8V within 2 hours, charging will
be suspended and the TEST LED #8 (red) will flash, indicating the battery
may have suffered permanent damage or a professional assessment is
required.
LOW VOLTAGE SAVE for batteries between 8.9V and 12.8V (16V):
Maximum current is set to 1.25A. The battery's charge acceptance is
monitored for unusual behaviour.
A healthy LiFePO
4
battery will progress to CHARGE mode within 4 hours,
otherwise charging will be suspended and TEST LED #8 (red) will flash,
indicating the battery may have suffered permanent damage or a
professional assessment is required.
10
OptiMate
maintenance
9
TEST after
CHARGE
1
Low Volt
Start (0.5V)
2
TEST before
charge
3
Temperature
check
4
Ultra LOW
VOLT SAVE
5
LOW VOLT
SAVE /
cellmonitoring
6
TEST -
cell damage
7
Cell-balancing
CHARGE
8
OPTIMIZE
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