ProCharger XL Instrucciones De Uso página 23

Risks
Intended use
1. Disconnect the ProCharger XL from the power supply
(230 V/50 Hz power socket).
2. Remove the charger plug from the vehicle socket.
Charging of LiPo/Li-ion starter batteries
The menu symbol for this mode is an "exclamation mark in a
triangle" on the display. This indicates charging of LiPo/Li-ion
starter batteries.
This mode is specially designed for starter batteries which
operate with lithium-ion or lithium-polymer cells.
In this mode, the additional programs "Trickle charge" and
"Maintenance", which are intended for lead batteries, are
not available.
The "Maintenance" program is of no use for Li-ion or LiPo
batteries, and the "Trickle charge" program may cause these
types of battery to degrade. Instead, the charger switches
automatically to a "Pause mode" after the main charging
phase. The charger remains in this "Pause mode" for approx.
24 hours. Then (or if the battery voltage drops below 12 V),
the main charging phase is restarted and the battery charge
is topped up. The entire process is repeated in cycles until the
battery is disconnected from the charger.
Functional description of the lead battery activator
The design of lead batteries means that they are capable of
lasting for 8 to 10 years if properly maintained. In practice,
however, the average useful life is well below what is possible,
and it is particularly seasonal use that often leads to early
failure of lead batteries. Many owners of motorbikes, vintage
cars, boats, battery-operated lawnmowers and caravans are
familiar with the problem of finding that the battery often fails
the first time they are used in the spring. The culprit behind the
early failure of many lead batteries is a chemical process known
44
Cortesía de www.bateriasdelitio.eu
as sulphation. The lead sulphate contained in a battery
has a tendency to develop clumps of crystals. This tendency
is particularly strong when discharge is slow or during
self-discharge. This reduces the plate surface area within the
battery (crystalline sulphate covers the lead plates), and the
capacity falls. The more thickly the plates are covered, the less
energy can be stored and subsequently released. Deposits of
sulphate are the main reason for the failure of lead batteries.
The lead battery activator integrated into the ProCharger XL
helps prevent the deposition of sulphate on the lead plates
by means of periodic, intense pulses of up to 80 A.
How does desulphation work?
The crystalline sulphate deposits (sulphation) particularly tend
to form in lead batteries that are not used for a relatively long
time. This can be counteracted by simulating normal operation,
with charging and discharging being performed cyclically.
Even better results are achieved with methods in which the
battery is subjected to a large, brief pulse of discharging or
recharging current. Chargers that generate charging pulses
risk applying too much voltage to the vehicle's electrical system.
Some chargers apply an increased voltage (up to 20 V) when
desulphating the battery. This method requires the battery to
be disconnected from the vehicle to avoid the risk of the high
voltage damaging the vehicle's electronic systems. For this
reason, the designers of the ProCharger XL selected a method
that uses discharge pulses.
Cortesía de www.bateriasdelitio.eu
45