GRAUPNER SWITCHING POWER SUPPLY 5-15V 0-40A Manual page 9

• 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 consisting of a small number of cells. If the cells feature has a poorly
defined voltage peak, the charger may fail to detect the fully charged state.
• Before charging please check: have you selected the appropriate charge output for the
battery? 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.
• Be careful! A battery could explode or burn, if the charger does have a fault or if the
user does choose the wrong charging output and parameters.
4. Operation:
1. Connect the charger to an easily accessible mains power socket (220-240V AC,
50Hz).The red LED display will be on to confirm that the charger is ready for use.
Adjust the max. charge current and charge voltage like shown in the table.
Doing not so or adjusting the wrong voltage or current can cause explosion and fire.
2. Make absolutely sure that the polarity of the battery and the polarity of the charging
cable match.
- RED to positive pole (+)
- BLACK to negative pole
The charge current can be displayed in the LED display to indicate that charging is in
progress.
4. If the charge current is lower as 0.1 - 0.2A, the battery is fully charged. Disconnect the
battery from the charge lead, and disconnect the charger from the mains socket.
5. In case of charging LiFe or LiPo batteries, you must use the LiPo-Balancer 5 plus
#3064 or LiPo-Balancer 6 plus #3065 for safety reasons. The maximum charge current
must be limited to max. 10 A. Use a LiPo safety case #8370 or #8371.
5. Safety notes:
Make sure to follow the correct polarity connecting the battery charger. In case of
wrong connection you could cause severe damages to the battery charger
connected.
Protect the charger from dust, damp, rain, heat (e.g. direct sunshine)and vibration. It
should only be operated in dry, indoor conditions.
The case surface serves to cool the charger and must not be covered or enclosed;
cooling air must be able to circulate unhindered.
Do not leave the charger running unsupervised.
Power supply may become warm during use or emit a slight buzzing sound, this is
normal and can be disregarded.
Do not attempt to open the casing, as there are no user serviceable parts inside, and
this may void the warranty.
For indoor use only.
The following types of battery must not be connected to the charger:
- Faulty, damaged or hot batteries
- NiMH or NiCd batteries
- Non-rechargeable batteries (dry cells)