LEMANIA ENERGY LEM1224250 Manual Del Usuario página 11

ADVANCED DIAGNOSTICS
Q: If the battery does not reach a voltage of 13,6V after 4 hours of BOOST CHARGE, the LED
keeps blinking. Why?
A: If the LED keeps blinking it is to notify the user of an abnormal battery state. The battery
cannot be recovered even after Boost Charge.
Q: After 4 hours of BOOST CHARGE, if the battery can reach 13,6V. Does the charger
automatically switch to the NORMAL CHARGE mode? Or should it be done manually?
A: If the battery is recovered after the BOOST CHARGE, it will automatically continue to
charge following a Normal Charge program.
Q: Can the charger be connected to a small capacity 12V battery of 25- 40Ah? What will
happen, can the charger be used to recharge smaller batteries?
A: As the max output of the charge is 25A, if it is connected to a small capacity battery,
the battery voltage will rise quickly due to the fast absorption and internal resistance. The
charger may indicate that the battery is fully charged or abnormal even if not fully charged.
The 7A charger would be more suited for these smaller batteries.
Q: After connecting the charger to the battery, after a few seconds or minutes the charger
indicates that it is fully charged, and all LEDs are ON. Is the battery already fully charged?
A: If such a battery has normal characteristics however the actual capacity is very low,
the charger will indicate it is fully charged in a short period of time shortly even the actual
capacity is still very low. Try the Boost mode for 4 hours.
Q: If the charger is connected to a large battery (120-250Ah) and is recharging correctly,
the 20%, 50%, 75% LEDs are ON, and the 100% is blinking. The Charger has even been left
overnight. What might be the problem? Is the charger not charging the battery or is the
battery not able to be charged to 100%?
A: If the light 100% is blinking, the charger is on the absorption step. The charging current
in absorption step drops to ~1.5A. As such if the battery capacity is large / has a high self-
discharge rate / the battery is loaded, the absorption step can take a long time. In effect the
battery is already charged to more than 80% and can be used normally.
Q: If the charger is connected to a large 24V battery and starts recharging automatically but
recognizes the battery as 12V. Why does it start in 12V?
A: The charger has an inbuilt ability to detect 12V or 24V batteries. It will make sure that
12V batteries are not charged in 24V, to prevent damage from occurring. Under special
conditions, a 24V battery may mislead the charger to recognize it as a 12V battery: if it is
overly discharged between 5V-14.7V, The battery voltage remains at 12V and increases by
less than 2V during the 2-minute analysis period. This abnormal condition will not cause any
safety issues or result in damage to the battery or charger however the charger will not be
able to fully charge the battery.
Q: Is the temperature sensor used to detect the temperature of the Charger or the Battery?
A: The temperature sensor used to detect the battery and environment temperature, the
charger will use the battery temperature to adjust the charging program.
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