Справочник Пользователя для IVT 900018, 12 Lead Acid Battery Charger, 8 A > 20 Ah 900018

 

 
 
Dear Customer, 
Thank you for buying our product. You have bought one of the most powerful and reliable Automatic 
Chargers of its class. Please read the operating instructions carefully before use. 
 
WARNING !!!  Safety Instructions !! 
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Keep out of reach of children! The Charger operates on 230 V AC! 

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Do not use the unit under the following conditions: in places which are dusty or damp, in a high 
humidity area (over 80% rel. humidity), temperatures above 50°C, in areas containing combustible 
materials (liquids/solvents, gas), do not immerse in water. 

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Use only in enclosed, dry areas. 

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Should the Automatic Charger fail to operate or show indications of not operating properly unplug 
immediately and make sure that the Charger is not put into further use. Do not use when visible signs 
of damage to the Charger or wiring, due to transport or inadequate storage are noticeable. 

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Service and Repair - Service and repairs are to be made by authorized Personnel only. 

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With this automatic energy conservation battery charger you can automatically charge all lead 
batteries  (12V). 

 
Description of Operation 
In contrast to chargers with voltage/current characteristic, this charger uses constant current. This means 
that charging is considerably faster, as the battery is charged with the maximum current right up to the end 
of the charging process. The batteries also receive a 100-% charge.  
Controlled gassing is desirable in this, as it has a major influence on the formation of sulphate layers, thus 
prolonging the service life of the battery.   
Charging principle: up to a voltage of  14.7V, the battery is charged with the maximum current. Then the 
charger switches to the timer mode and the battery is charged with constantly decreasing current. After 
approx. 1 hour the charger switches automatically to the stand-by mode and trickle charging at 13.8V is 
initiated.  Also suitable for the charging  of lead gel batteries. The charger is, of course, protected against 
short circuiting and polarity reversal. 

 

LED indicators 
red:  

As soon as a battery is connected, the unit charges with maximum current: 

yellow:  timer mode – the battery voltage has reached 14.7V. It is then charged for approx. 1 hour with 

constantly decreasing current (see diagram). 

green:  

charging is complete and the unit is in "trickle charge" mode. 

 
Security Information 
When the charge is completed (the battery is full) the green LED lights.  
It is possible to charge batteries with different capacities. For larger batteries the charge time is longer, for 
smaller batteries the charge time is shorter. 
Batteries may be charged whether they are weak or completely low. The battery can also be continually 
connected to the charger but the temperature of the environment should never be exceeded not drop 
below 20-25°C. If the battery is inadvertently connected to the charger at the wrong pole/terminal then the 
flow of energy will be discontinued. If the poles are reversed by mistake on connection of the battery to the 
charger, the charging current is shut down. 

 

 

Operating the Unit 
1. 

Connect to a 230V AC: First plug the charger into 230V outlet.  

2. 

Connect battery: Place the red clip of the charger to the positive pole/terminal 

Instruction! The unit is protected for awhile from short circuiting! Any short circuit which continues 
over a minute must be avoided otherwise the transformer or the electronic within the charger will 
be overloaded. 
Warning !! 
- 

When charging the battery make sure that the charger is connected to the correct poles/terminals of 
the battery. 

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To avoid damage of the battery make absolutely sure that the battery is never overdischarged. 

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Charge batteries only in well ventilated areas. 

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Open the lead battery caps. 

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Before charging the lead battery test the acid level. 

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When charging for a longer period of time test the acid level several times. 

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When charging the battery avoid open fire, direct lighting and sparks. (There is danger of explosion 
with oxyhydrogen gas!) 

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Pay close attention to the instructions an how to charge the battery (these instructions are usually 
printed on the top of the battery). 

Troubleshooting: If operation of the unit is not safe unplug immediately and make sure it is not put into 
further use. 
This means: 

If there is visible damage of the unit. 
If the unit is not functioning. 
If any of the units components are loose or removed. 
If there is visible damage to the wiring. 

If repair is needed use only original parts. Utilization of parts from other distributors may result in damage 
to the unit and to the operator! Service and repairs are to be made by authorized personnel only! 
If the unit fails to operate return the unit to our company. 
 
 
Specifications 
 

Operating voltage: 

230V ~ 50Hz 

230V ~ 50Hz 

Charging current: 

3A/6A switchable 

4A/8A switchable 

Battery voltage: 

12V 

12V 

End of charge voltage: 

14,7V 

14,7V 

Trickle charge: 

13,8V 

13,8V 

 
 
 
 
 
Subject to technical alteration. No liability assumed for typographical errors.05/2002 
IVT Innovative Versorgungs-Technik GmbH, Dienhof 14, D-92242 Hirschau, Germany 
Tel. (49) 96 22 – 7 12 21 or 7 12 22, Fax (49) 96 22 – 7 12 20 
Internet: www.IVT-Hirschau.de     eMail: Info@IVT-Hirschau.de