ROBBE POWER PEAK ULTIMATE Li 8427 Li Manual De Instrucciones Adicional página 10

To avoid this, the individual cells must be
brought up to the final charge voltage of 4.2
Volts.
In contrast, charging parallel-wired cells
does not present problems, as the total
charge current is distributed to the individual
cells according to their voltage.
We wish to point out expressly at this point
that, in the interests of safety, Li-Poly batte-
ries may only be charged using the Ultimate
Li charger if each individual cell is fitted
with a voltage monitor module.
We accept absolutely no liability for
damage caused by incorrect or incompe-
tent handling of the cells.
Please be sure to read and observe the
safety notes regarding the handling of Li-
Poly cells; you will find them at the end of
these instructions.
The charge process
Lithium-Ion batteries are charged using the
constant voltage method.
For this reason the final charge voltage is
pre-set on the charger according to the num-
ber of cells in the pack. The default charge
current is max. 1 C.
During the initial charge phase the battery
voltage rises slowly to the maximum value of
4.1 or 4.2 V / cell. In this phase the Ultimate
Li charger ensures that the charge current
remains constantly at the pre-set value.
At a charge current of 1 C and a discharged
Supplementary operating instructions
POWER PEAK ULTIMATE Li
10
battery this initial phase lasts about 50 - 60
minutes, and during this time about 80% of
full battery capacity is charged in.
During the second phase the charge current
falls off, since the difference in voltage bet-
ween charger and battery is steadily decli-
ning. A further 35 - 40 minutes is required in
order to charge in the remaining capacity.
The unit switches off the charge process
when the charge current falls to the bottom
limit of 50 mA.
At present the permissible maximum charge
rate is 1 C, and this means that the total
charge process takes at least 95 minutes if
the battery is initially discharged.
The charger in use
The method of operating the charger
remains basically unchanged, although indi-
vidual menu points have been expanded.
For example, Lithium has now been added
to the battery type select menu.
If you are charging a battery of the Lithium
type, please note the following deviations
from the main battery instructions:
- Charging is only possible in manual mode.
- There is no discharge process.
- The user enters the nominal voltage of the
cell or battery rather than the cell count.
- The charge current is limited to 1 C, calcu-
lated from the battery capacity you have
entered. (1 C = 1 x cell capacity).
Order No.
8427 Li