ROBBE POWER PEAK MAXAMP 8121, Руководство по эксплуатации

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Order No.
8121
Supplementary Instructions
POWER PEAK MAXAMP LI
Final charge voltage table for Lithium batte-
ries:
Charge current / discharge current:
The battery charger’s maximum charge cur-
rent / discharge current varies according to
the actual voltage of the battery (see the
main instructions for more information).
Operating the charger
The general method of operating the unit is
unchanged, and is as described in the main
instructions.
Specification:
Input: 11 - 15 Volts DC
Cell counts:
NC / NiMH battery 1 … 30 cells
Lithium battery 1 … 12 cells
Lead-acid battery 1...21 cells
Charge current: 0.1 … 12 A
Discharge current: 0.1 … 22 A
Termination:
Automatic, NC / NiMH =
digital Delta Peak
Lithium / lead-acid =
voltage dependent
8
General information on Lithium batteries
There are various basic types of Lithium
battery:
1. Lithium-Ion batteries containing fluid
electrolyte, featuring a nominal voltage
of 3.6 Volts. This is the first generation
of lithium cells, and is not often used for
modelling applications.
2. Lithium-Ion batteries containing fluid
electrolyte, featuring a nominal voltage
of 3.7 Volts. This is the second genera-
tion of lithium cell, and is housed in a
metal can.
3. Lithium-Ion-Polymer batteries contai-
ning gel-form electrolyte, featuring a
nominal voltage of 3.7 Volts. This is the
current generation of lithium cell, which
has also become known as Li-po or Li-
poly batteries. The gel electrolyte
results in a reduced pressure build-up in
the cell during charging and dischar-
ging, for which reason a foil housing is
adequate. This cell has rapidly become
very popular for model purposes due to
its low weight and high energy density.
The basic charging process is the same for
all lithium cell types, but the charge termi-
nation voltage varies according to the
nominal cell voltage; this parameter must
be selected in the MAXAMP LI’s Final
Charge Voltage menu.
In general terms the following specifica-
tion applies to all Li-poly batteries:
Charge current:
1C, i.e. capacity value = charge current
•
Example: Li-poly cell of 1500 mAh
capacity: 1C = 1500 mA (= 1.5 A)
charge current
For the most commonly used types of
lithium battery this is the correct charge
current, although modern high-current
lithium cells can be charged at higher rates
(1.5C … 2C).
Discharge current:
3C - 5C, peak 10C; high-current cells 7C -
12C, peak 20C.
Be sure to read the cell manufacturer’s
instructions.
Cell count 3.6 Volt type 3.7 Volt type
1 4,1 V 4,2 V
2 8,2 V 8,4 V
3 12,3 V 12,6 V
4 16,4 V 16,8 V
5 20,5 V 21,0 V
6 24,6 V 25,2 V
7 28,7 V 29,4 V
8 32,8 V 33,6 V
9 36,9 V 37,8 V
10 41,0 V 42,0 V
11 45,1 V 46,2 V
12 49,2 V 50,4 V