MEDION Universal Battery Charger MD 11954 Manual

MEDION Universal Battery Charger MD 11954 Manual

Overview of the Device

3 Charging slots for D, C, AA and AAA batteries 5 6 7 Check LED for 9 V block battery Input: Connection socket for the power supply unit +/- Terminal for 9 V 8 Cover 10 Function switch 11 Display 1

Table of contents

Overview of the Device .........................................................1

Table of contents ..................................................................2

Safety Instructions.................................................................4

Electrical devices require special caution...........................4

In the Case of Malfunctions ..............................................6

Cleaning the unit..............................................................6

Dealing with Rechargeable Batteries ...............................7

Information about this Device ...............................................8

Types of Battery that Can Be Charged...............................8

Labelling of the Battery Types...........................................9

Automatic Recognition of the End of Charging ...............10

Automatic discharging....................................................12

Start-Up ..............................................................................13

Unpacking the unit.........................................................13

Operation ...........................................................................13

Charging NiMH and NiCd batteries ................................14

Charging 9 V block batteries...........................................16

Charging RAM cells ........................................................17

Overview of the approximate charging times ......................18

Switching off function ....................................................19

Taking the device out of operation ......................................20

Stashing the device away/putting it away.......................20

2

Disposal ..............................................................................21

Packaging.......................................................................21

Device ............................................................................21

Batteries .........................................................................21

Technical Specifications.......................................................22

3

Safety Instructions

Read the Safety Instructions through carefully before bringing the device into operation. Pay attention to the warnings in the Operating Instructions. Always keep the Operating Instructions close to hand. Pass these Instructions on as well under all circumstances if you sell or pass on the device.

Electrical devices require special caution

• Batteries/rechargeable batteries can be dangerous if they are swallowed. Keep the device and the batteries inaccessible to small children for this reason. • Medical assistance must be sought immediately if a battery has been swallowed. • Never subject the batteries to excess heat, such as because of sunshine, fire or similar influences. • Also keep the packaging away from small children. There is the danger of suffocation. • Children should be supervised to ensure that they do not play with the device. This device is not intended to be used by individuals with restricted physical, sensory, or intellectual abilities or a lack of experience and/or knowledge (including children), unless they are being supervised by an individual responsible for their safety or 4

have received instructions from such an individual about how the device is to be used. • • Only use rechargeable metal-hybrid batteries (NiMH), nickel-cadmium (NICD) or alkaline batteries (RAM batteries). Do not use any batteries in the device that are not clearly labelled as rechargeable. There will be the danger of injury and the device could be damaged if other types of battery are used. • • • • • • Always only use rechargeable batteries (batteries) of the same type for a charging process! Only connect the plug-in power supply unit to a well accessible 240 V ~ 50 Hz socket. Only use the plug-in power supply unit supplied with the device with the battery charging device. The use of other plug-in power supply units could lead to damage to the device. Do not cover the plug-in power supply unit, because otherwise warming and consequently damage to the plug-in power supply unit could arise. You should not use any extension cables to avoid them being tripped over. Keep the device away from moisture, drops of water and spray. Avoid dust, heat and direct solar radiation, in order to avoid operational malfunctions. 5

• Use the device exclusively in living or similar areas.

In the Case of Malfunctions

• Detach the plug-in power supply unit from the socket immediately in the case of damage to the plug, the charging device or the plug-in power supply unit. • Do not use the connection cable under any circumstances in the case of a damaged plug-in power supply unit. • A damaged plug-in power supply unit must no longer be used. Replace it by an equivalent plug-in power supply unit. • Do not attempt to open and/or repair the device yourself under any circumstances. Contact our Service Center or another suitable specialist workshop. • Have a defective device or a damaged plug-in power supply unit repaired by a qualified specialist workshop or contact the Service Center, in order to avoid endangerment.

Cleaning the unit

• Please detach the plug-in power supply unit from the socket before cleaning the device. Use a dry, soft cloth to clean it. Avoid the use of chemical solvents and cleaning substances, because they could damage the surface and or the labels of the device. 6

• Also clean the + and – terminals with a dry cloth after long use, in order to maintain an optimum contact at the terminals.

Dealing with Rechargeable Batteries

• Do not use any damaged or corroded rechargeable batteries in the device. • Rechargeable batteries (batteries) can be dangerous to life if they have been swallowed. Keep the device and the rechargeable batteries inaccessible to small children for this reason! • Medical assistance must be sought immediately if a rechargeable battery has been swallowed. • Rechargeable batteries must be disposed of correctly. Corresponding containers ready for battery disposal are located in businesses selling batteries and at the local collection points for this purpose. • Avoid contact of the battery fluid with the skin under all circumstances if a battery is leaking! The battery fluid can cause skin irritation! • Remove the leaking battery with a dry, absorbent cloth and avoid contact with the skin by wearing gloves, for example. 7

Information about this Device

You can charge 1-4 size AAA/R03, AA/R6, C/R14, D/R20 rechargeable batteries or 9 V block batteries at the same time with your charging device. You can also charge a 9 V block battery, in addition to AA/R6 and AAA/R03 batteries, so that 5 batteries will be charged at the same time.

Types of Battery that Can Be Charged

You can charge NiMH (nickel-metal hydride) and NiCd (nickel-cadmium) types of rechargeable battery, and RAM cells (alkaline/manganese). The charging process is the same in the case of NiMH and NiCd batteries; but NiCd batteries must be discharged before recharging. Please take the approximate charging times of the individual types of battery to be expected from the Table on p. 18.

ATTENTION!

RAM cells must not be discharged under any circumstances, because this can shorten the useful life of the batteries, as far as the loss the ability of the RAM cells to charge. RAM cells should not be used no more than half capacity and then be recharged for this reason. 8

Never place RAM cells in the device if the function switch is at the NiMH or NiCd position. This could lead to the discharging of the batteries and therefore to damage to the device.

Labelling of the Battery Types

Rechargeable batteries are labelled in accordance with the IEC Norm in Europe. Labels taken from the American ANSI Norm exist apart from this. The micro, mignon, baby, mono and block size labels are the most usual. The following Table will give you an overview of the most usual size and type labels that can be recharged with this charging device: Size Labels Label ANSI/ISO AAA/R03 AA/R6 Type Labels C/R1 4 D/R20 9V HR6 4 KR6 4 LR6 LR14 HR20 KR20 RAM cell LR03 LR20 No general IEC type labelling can be established for rechargeable 9V block batteries. The typical 6F22 label for non-rechargeable block batteries is frequently used for them. 9

Automatic Recognition of the End of Charging

This charging device manages the charging time for NiCd and NiMH type rechargeable batteries separately. This management is based on the (Minus Delta U) process.

Recognition of the end of charging in accordance with Minus Delta U (-

Δ

U)

Differences are described with delta in mathematics. In this case, Minus Delta U means a negative difference in voltage. This recognition of the end of charging exploits the following effects: The voltage of a battery will increase continuously if it is being charged with constant electricity. However, if a battery has been completely charged, its voltage will have reached a maximum and will decline slightly if there is a further current flow. This slight decline in voltage will be recognised by the charging technology and charge will be ended.

NOTE:

The charging time for 9 V block batteries is not recognised automatically and ends after 10 hours. You will also be able to establish the charging time for a 9 V block batteries as follows: Charging time = (capacity of battery (mAh) / charging electricity (mA)) x 1.5 10

For example: You want to charge a 9 V block battery with a capacity of 200 mAh (given on the battery) in the device. This charging device supplies a current flow of 65 mA (to be found in the Technical Data). Therefore take 60 mA for the average level of the current flow. The formula will now appear as follows: (200 mAh / 65 mA) x 1.5 = 4.61 h The charging time will therefore be 4 hours 36 minutes in this case. 11

Automatic discharging

Batteries will be initially discharged and then recharged in the NiCd switch position. NiCd batteries must be discharged before recharging, in order to avoid the memory effect, in the case of which batteries not completely charged only retain their capacity up to the point of the most recent charging. You will, of course, also be able to discharge NiMH batteries by setting the function switch to NiCd and placing the charged NiMH batteries in the charging slots. This is neither damaging to the rechargeable batteries nor the device, because NiMH batteries are not subject to any memory effect.

ATTENTION

9 V block batteries cannot be discharged with this charging device! The discharging of rechargeable batteries depends on the total capacity and the remaining capacity. It will therefore always be different and precise information is not possible. 12

Start-Up

Unpacking the unit

• Remove all packaging material.

ATTENTION

! Do not let young children play with plastic packaging, to avoid the danger of suffocation! Make sure during unpacking that the following items have been included: • Battery charging device • Plug-in power supply unit (without illustration) Always make sure that: • The device never comes into contact with water, not even drips or splashes; • The device is not exposed to direct sunlight for a long time.

Operation

• Connect the plug-in power supply unit to a well accessible 230 V ~ 50 Hz socket and plug the connector into the INPUT socket on the charging device. The charging device will now carry out a short self-test, during which all the LEDs and the display symbols will light 13

up at the same time. The operational LED will light up after this, in order to indicate that there is an electricity supply. The OK symbol will appear on the display for each charging slot and the corresponding check LEDs will go out if no batteries have been inserted.

Charging NiMH and NiCd batteries

• Set the function switch to the NiCd or NiMH battery type. • Place the rechargeable batteries (batteries) of the NiMH or NiCd battery type that you want to charge into the corresponding charging slots.

NOTE:

Do not place more than one rechargeable battery (battery) into one charging slot! • The charging status of the batteries inserted will be recognised and the charging or the discharging process (only NiCd) will be started after approximately two seconds. The charging status of battery sizes AAA, AA, C and D will be indicated as follows in the display: Check LED Display symbols 14

A: Battery is completely charged: battery symbol will be displayed continuously/green LED will light up and OK will be displayed B: Battery is charged up to 75%: battery symbol will flash/ red LED will light up/the charging process will be indicated by CHA C: Battery is charged up to 50%: battery symbol will flash/ red LED will light up/the charging process will be indicated by CHA D: Battery is charged up to 25%: battery symbol will flash/ red LED will light up/ the charging process will be indicated by CHA E: NiCd is being discharged: battery symbol will flash/orange LED will light up/the discharging will be indicated by DIS F: Defective or incorrect battery recognised/ red LED will flash and BAD will be indicated. Remove the respective battery from the charging slot immediately in this case. • The batteries will now be charged and the check LEDs above the charging slots in which a rechargeable battery has been placed will light up. The charging time for each battery will be managed individually during the process. • The control LED for the corresponding charging slot will change from red to green and the device will switch to maintenance automatically after the end of the charging time, in order to avoid independent discharging in the charging device. It will now be possible to either remove the batteries or to leave them in the device. 15

The charging time will depend on the age and the total capacity of the rechargeable batteries. The maximum charging time in the device is 10 hours. The device will switch to maintenance charging after this.

Charging 9 V block batteries

• Set the function switch to the NiMH or NiCd battery type. • Plug a 9 V block battery that you wish to charge onto the + and – terminals in the central charging slot, paying attention to the correct polarity. The check LED for 9 V block batteries will shine during the charging process and will go out when a voltage of approximately 10 V has been reached or after 10 hours at the latest. You will also be able to remove the battery from the device earlier, if you have calculated the optimum charging time in advance with the formula given in Page 8 of these Instructions. • Detach the plug-in power supply unit from the socket and remove the 9 V block battery from the charging slot after the charging has been completed. 16

Charging RAM cells

• • Set the function switch to the RAM battery type. Place the RAM type rechargeable batteries (batteries) that you want to charge in the corresponding charging slot. The symbol in the display will be the same as when charging NiMH or NiCd batteries. The corresponding check LED above the charging slot will shine during the charging process. The charging time will not be limited in accordance with Minus Delta U in the case of RAM cells, but by reaching the charge voltage for RAM cells. The check LED will then change from red to green and the device will switch to maintenance charging. • Detach the plug-in power supply unit from the socket and remove the RAM cells from the charging slot after the charge has been completed.

NOTE:

RAM cells are distinguished by specific characteristics that can influence their behaviour in use. Pay attention to the corresponding information of the respective manufacturer under all circumstances for this reason. 17

Overview of the approximate charging times

Battery type Battery size NiMH AAA 800 mAh AA 2300 mAh C D 3300 mAh 6000 mAh RAM cell AA C D AAA AA C D 800 mAh 2200 mAh 4400 mAh 1.5 V 1.5 V 1.5 V 1.5 V Ca. 0.5-0.6 h Ca. 0.8-1.1 h Ca. 2.2-2.94 h Ca. 4.4–5.9 h Ca. 0.8-1.1 h Ca. 2.3-3.1 h Ca. 3.3-4.4 h Ca. 6-8 h <1.4 V 2.5 h <1.4 V 5 h <1.4 V 6 h <1.4 V 10 h The charging time will depend on the age and the total capacity of the rechargeable batteries. The maximum charging time in the device is 10 hours. The device will switch to maintenance charging after this. Please use NiMH batteries with a capacity of at least 500 mAh exclusively. 18

Use batteries in the following ranges of capacity exclusively: Battery type Battery size Capacity Ni-MH NiCd AAA AA C D 500 – 900 mAh 500 – 2500 mAh 500 – 4500 mAh 500 – 8000 mAh RAM 9V AAA AA C D 120 – 250 mAh 500 – 1000 mAh 1000 – 2500 mAh 2000 – 4500 mAh 2500 – 6000 mAh

Switching off function

This device is equipped with automatic temperature monitoring that will interrupt the charging process if too high temperatures arise in the device. 19

Taking the device out of operation

Stashing the device away/putting it away

• Detach the plug-in power supply unit from the socket if you are no longer using the device. • Remove the rechargeable batteries from the device, if necessary. • Close the cover and store the device in a dry place. 20

Disposal

Packaging

The Device is packaged to protect it from transport damage. Packages are raw materials and thus can be disposed of when returned to the raw materials.

Device

Never dispose off the device in the normal household garbage at the end of its life cycle,. Ask your local council for options to dispose of the appliance properly and in an environmentally friendly way.

Batteries

Do not dispose of used batteries with normal household waste. Batteries should be disposed of at special collection points, as they contain harmful substances. 21

Technical Specifications

Model: MD 11954 Charging electricity

NiMH/NiCd: RAM cells: 9 V block battery: 4 x (DC 1.2 V 4 x (DC 1.5 V 1 x (DC 9 V ca. 1.2 A) ca. ca. 130 mA) 65 mA)

Maintenance charging current

NiMH/NiCd: 4 x (DC 1.2 V ca. 130 mA)

Discharge current (only NiCd operation)

NiCd: Ca. 550 mA

Plug-in power supply unit:

Input: Output: 100 - 240 V ~ 50/60 Hz; 0.5 A DC 12 V 1 A Plug-in power supply unit Subject to technical modifications! 22

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