TecMate TM274 Modo De Empleo página 8

STEP STEP 2
2 & 3
Battery SOC check
Preparing
to charge
STEP 3
Temp° chec
STEP LED #3 : RED
4, 5 & 6
3
SAVE
Bms Bms
State Of
Time to save a
Charge:
battery
Less than
50%
BMS auto reset
during STEP 4, 5 & 6
STEP 4
Below 8.8V
STEP 5
8.8V to 13.1V
STEP 6
TEST cell damage
STEP 7
LED #4 : BLUE
CHARGE
4
State Of
Charge:
50%
- 75%
Immediately following connection to a battery there may be a 1-2
second delay before charging progresses, during which time:
Battery State Of Charge is measured to determine charge requirement
and duration of the State Of Health test in STEP 9. A low battery will be
tested for 12 hours.
safeTº: Ambient temperature is measured to determine safe charge
current parameters. Maximum current will be reduced below 0ºC/32°F.
k
If the temperature is below -20ºC/-4°F no charging will be allowed,
indicated by LED #8 blinking rapidly.
For temperatures above -20°C / -4°F charge LED #3, 4 or 5 will turn on
and charging will proceed.
The battery SAVE mode engages if the battery is less than 50% charged
OR voltage is between 0.5 to 13.1 Volt.
IMPORTANT: Read the section VERY FLAT NEGLECTED BATTERIES on
the preceding page.
A very flat battery should progress to STEP 7 within 4 hours, unless
damage has been detected, then charging will be suspended and TEST
LED #8 (red) will flash rapidly, indicating the battery may have suffered
permanent damage or a professional assessment is required.
A deep discharged battery may not hold sufficient voltage to power its
own BMS system. The charger will attempt to automatically reset the
BMS during SAVE mode and continue charging. If charging did not
continue, use the MANUAL RESET: place and hold finger on BMS reset
button for 10 or more seconds, until the program continues to STEP 4.
VERY LOW VOLTAGE SAVE : 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 :
Maximum current is set to 2.5A. The battery's charge acceptance is
monitored for unusual behaviour.
TESTING (2 min) - The battery's ability to hold charge is monitored. A
healthy LiFePO
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be suspended and TEST LED #8 (red) will flash rapidly, indicating the
battery may have suffered permanent damage or a professional
assessment is required.
The ampmatic™ CHARGE program automatically determines
the most efficient rate of charge current for the connected battery,
according to its state of charge, state of health, and electrical storage
(Ah) capacity. The delivered current may be anywhere from 2.5A to
9.5A (within normal safeTº temperatures, see page 5). For batteries
with an electrical storage (Ah) capacity less than 10Ah charge current is
automatically adjusted lower to an average equal to battery Ah capacity,
e.g. a 2.5Ah / 2500mAh battery receive an average of 2.5 Amps.
NOTE: For safety reasons there is an overall charge time limit of 24
hours up to STEP 7.
battery will progress to STEP 7, otherwise charging will
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