Cristec YPOWER 12V-12V/60A Manuel Utilisateur page 45

V BOOST: BOOST voltage (see table above – paragraph 3.3.2)
V FLOAT: FLOATING voltage (see table above – paragraph 3.3.2)
T BOOST: BOOST maximum duration (see table above – paragraph 3.3.2)
T ABS: ABSORPTION maximum duration (see table above – paragraph 3.3.2)
BOOST phase:
Starts up automatically when the charger / converter is turned on if the battery is flat. The current is then at maximum
output.
ABSORPTION phase:
Begins when the voltage has reached the maximum BOOST level. The current level starts falling.
These two phases combined last a maximum of TBOOST+TABS (depending on setting). If the current falls below 20% of
rated current (2A in the case of the Lithium curve Iron Phosphate with BMS with a minimum time of 10 minutes), the
FLOATING phase automatically kicks in. Duration and current intensity depend on how charged the battery is.
FLOATING phase:
Starts after TBOOST or if output current has reached 20% of the charger / converter's rated current. The voltage switches
to the FLOATING value and the charging current continues to drop.
REFRESH phase:
It is an automatic weekly cycle (Inhibited or not if mode REFRESH is selected) in order to optimize the battery life
duration.
It will occur only after a complete recharge cycle (BOOST, ABSORPTION and FLOATING). The charger / converter will
generate automatically a safe timed voltage step every 7 days whatever the position of BOOST switch.
REBOOST phase:
Automatic phase consisting in coming back to a BOOST voltage if the DC utilizations require it (i.e. after a complete
recharge cycle BOOST, ABSORPTION and FLOATING if a some DC constant consumptions are detected the charger /
converter will restart a new complete charge cycle including a BOOST phase).
This REBOOST phase will be authorized after measuring certain battery voltage during a determined time.
When BOOST mode is OFF
With this setting, the YPOWER charger / converter produces a single-stage UI type charge curve. It generates a constant
voltage, supplying the current required by the battery(ies). Recharging time depends on the state of the battery, being
longer than when the BOOST is in the ON position.
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