Table of Contents
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Contents
Chapter
1.
Introduction
2.
Warnings and safety notes, please read and observe!
3.
4.
5.
Charger controls, using the unit, starting the charge process
6.
7.
8.
9.
10.
Nickel-cadmium (NiCd) charge programs
11.
Nickel-metal-hydride (NiMH) charge programs
12.
Lithium-Ion (LiIo) / Lithium-Polymer (LiPo) charge programs
13.
Lead-acid (Pb) charge programs
14.
User settings (initial program, delta peak trigger voltage, charge
termination delay, safety timer, initial current, low voltage cut-off etc.)
15.
„Akku 2" output, setup and operation
16.
Screen displays, display of cycle data
17.
18.
Error and warning messages, tips on usage
19.
20.
21.
22.
Guarantee certificate
1. Introduction
Please study these instructions, reading them completely and attentively, before you use the unit for
the first time. This will guarantee that you will be able to exploit all the facilities of your new battery
charger. The warnings and safety notes are particularly important.
Please store these instructions in a safe place, and be sure to pass them on to the new owner if you
ever dispose of the charger.
By selecting the ULTR DUO PLUS 30 you have acquired a sophisticated, highly specified product with an
excellent performance. It incorporates the latest semi-conductor technology, controlled by a high-perfor-
mance RISC micro-processor, to provide superior charging characteristics combined with simple operation
and optimum reliability. These features can normally be expected only from much more expensive units.
The ULTRA DUO PLUS 30 is capable of charging virtually all the rechargeable batteries which are
commonly used in modelling. These include sintered-cell Nickel-Cadmium (NiCd), Nickel-Metal-Hydride
(NiMH), Lithium-Ion (LiIo) and Lithium-Polymer (LiPo) batteries, and also lead-gel and lead-acid (Pb =
Plumbum) types. These sealed, gas-tight batteries have proved excellent for use in RC modelling. They
are mechanically robust, can be used in any attitude, and are robust and reliable. It is important to prevent
them becoming deep-discharged when in storage, but otherwise no special maintenance measures are
necessary. You can also use the ULTRA DUO PLUS 30 to discharge and maintain your packs and measure
their capacity. The charger features a cooling fan for better cooling and improved performance; the fan
cuts in automatically when required. The "Akku 2" output can be used at the same time to recharge a NiCd
or NiMH pack consisting of 4...8 cells.
Note: It is important always to observe the charging notes supplied by the battery manufacturer, and to
keep to the recommended charge currents and periods. Do not fast-charge batteries unless the manufac-
turer states expressly that they are suitable for the high currents which flow during these processes.
Please bear in mind that new batteries do not reach their full capacity until they have been charged and
discharged several times. With new batteries you may also encounter problems with premature charge
termination. Whenever you wish to use a new battery it therefore makes sense to carry out a series of
monitored test charges, so that you can check that the automatic charge termination circuit works correctly
and reliably with your packs, and charges them to full capacity.
24
Page
Protect the charger from dust, damp, rain, heat (e.g. direct sunshine) and vibration. It should only be
operated in dry indoor conditions. Provide good ventilation.
24
The case slots and fan serve to cool the charger, and must not be covered or enclosed; set up the
25
charger with space round it, so that cooling air can circulate unhindered.
26
The charger is designed to be powered by a 12 V car battery only. Do not make any modifications of
27
any kind to the unit.
27
The charger and the battery to be charged should be set up on a heat-resistant, non-inflammable
28
and non-conductive surface before use. Never place the charger directly on a car seat, carpet or
28
similar. Keep all inflammable and volatile materials well away from the charging area. Provide good
29
ventilation.
29
Connect the charger directly to the car battery using the original cables and connectors supplied.
30
The car's engine must be stopped all the time the ULTRA DUO PLUS 30 is connected to the car's
32
battery. Do not recharge the car battery at any time when the Charger is connected to it.
33
The charge output and connecting leads must not be modified or inter-connected in any way. The
35
charge and connecting leads should never be coiled up when the charger is in use. There is a constant
37
risk of short-circuit between the charge outputs and the car bodywork when using a car battery which
is installed in a car, and it is essential to avoid short-circuits between the charge output and the car
40
battery or bodywork, as the ULTRA DUO PLUS 30 is not protected against such errors. For this
42
reason you should never stand the unit directly on the car bodywork.
42
Never leave the charger unsupervised when it is connected to its power supply.
43
Do not connect more than one pack to each charge output at any one time.
44
The following types of battery must not be connected to the charger:
44
- NiCd / NiMH batteries consisting of more than 30 cells, Lithium-Ion / Lithium-Manganese batteries
45
consisting of more than 10 cells, and lead-acid batteries with a nominal voltage higher than 24 V.
Back cover
- Batteries which require a different charge technique from NiCd, NiMH, Lithium or Lead-Acid batteries.
- Batteries which require a different charge method from NiCd, NiMH or lead-acid batteries.
- Faulty or damaged cells or batteries.
- Batteries consisting of parallel-wired cells, or cells of different types.
- Batteries consisting of old and new cells, or cells of different makes.
- Non-rechargeable batteries (dry cells). Caution: explosion hazard!
- Batteries which are not expressly stated by the manufacturer to be suitable for the currents which
the unit delivers during the charge process.
- Packs which are already fully charged or hot, or only partially discharged.
- Batteries fitted with an integral charge circuit or charge termination circuit.
- Batteries installed in a device, or which are electrically connected to other components.
To avoid short-circuits between the banana plugs fitted to the charge lead, please always connect the
charge lead to the charger first, and only then to the battery to be charged. Reverse the sequence
when disconnecting.
As a basic rule always check that the charge quantity is approximately the same as you expected
after the charger has indicated that the pack is fully charged. This is your means of detecting a
problem reliably and in good time, should the charge process be terminated prematurely for any
reason. The likelihood of premature termination varies according to many factors, but is at its highest
with deep-discharged packs, low cell counts and particular cell types which are known to cause
problems.
We recommend that you carry out a series of test charges to satisfy yourself that the automatic
termination circuit is working perfectly. This applies in particular when you are charging packs consi-
sting of few cells. If the cells feature an indistinct peak, the charger may fail to detect their fully
charged state.
Before charging please check: have you selected the appropriate charge program? Have you set
the correct charge / discharge currents? Have you set the vitally important termination sensitivity
when charging NiCd and NiMH packs? Are all connections firm, or is there an intermittent contact at
any point in the circuit?
Please bear in mind that it can be dangerous to fast-charge batteries. For example, if there is a brief
interruption due to an intermittent contact, the result is inevitably a malfunction such as a restart of
the charge process, which would result in the pack being massively overcharged.
2. Warnings and safety notes
25
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