DEFA WorkshopCharger 125A User Manual

: June 5, 2024
: DEFA

Table of Contents

WorkshopCharger 125A
SAFETY
INSTALLATION
BUTTONS AND CONNECTORS
MENU/OPERATION
LONG-TERM CHARGING
MAINTENANCE
TECHNICAL INFORMATION
Documents / Resources

WorkshopCharger 125 DEFA WorkshopCharger 125A www.defa.com

WorkshopCharger 125A

DEFA WorkshopCharger 125A - Fig | DEFA
WorkshopCharger 125A - Fig1
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SAFETY

Please read the manual carefully before use.
Inexperienced users, children aged 8 and above, and persons with reduced physical or mental capabilities must only use this product under supervision or after having read or been given instructions on safe use.
Do not attempt to charge non-rechargeable batteries.
Only charge lithium batteries with an integrated Battery Management System (BMS).
After use, disconnect the mains power before disconnecting from the battery.
Only use the charger in a well-ventilated area and on vented batteries.
This charger must only be repaired by professionals.
Never intentionally connect the charger incorrectly, even though it is protected against short-circuiting and reverse polarity.
The charger does not draw current from the battery when the main power is not connected.
Do not use the charger in a highly flammable environment.
Do not charge a damaged battery.
During charging, batteries may release highly explosive gasses. Take care not to have sparks, open flames, cigarettes, or similar in the vicinity of the battery, and always ensure sufficient ventilation.
Battery acid is corrosive and harmful. It damages clothes, metal, and varnish. In case of spillage and contact with skin, wash and rinse thoroughly with water and consult a doctor.
Lead and other chemicals that are used in batteries are toxic. Wash skin and hands thoroughly after working with batteries.

ABOUT THE CHARGER
DEFA ShowroomCharger 125A is based on modern switch-mode technology. This charger represents the latest technology in battery charging and will give the batteries optimal performance and durability. It is well suited to charge lead/acid, AGM, EFB, GEL, and lithium-ion batteries up to approx. 600 Ah for an unlimited time.

INSTALLATION

The charger can either be installed by fixing the bracket directly to a wall or be hung on a wall bracket. See C and D page 3 for drill patterns.

BUTTONS AND CONNECTORS

See figure B, page 2

1. Back button	5. USB connector
2. Scroll Wheel	6. Temperature sensor connector
3. Power button	7. Charging cables
4. AC input connector	8. Cover for charge cable screw terminals

USE
Read the user guide carefully. Please contact DEFA or a qualified person if you are unsure about how to safely use the charger.
Connect red clamp to positive battery terminal (+) and black clamp to (-) or the connection point recommended by the vehicle manufacturer. The charger is intended for use with lead/acid, AGM, EFB, GEL, and Lithium batteries. The battery manufacturer’s recommendations for charging voltages shall always be taken into consideration.
If the temperature sensor is connected, the charge voltage will be temperature compensated. Lithium charging programs do not include this function.
Connect the AC mains cable to the charger. Push the power button. The charger will start. To turn off the charger, push the power button again.
If the power is turned off or there is a power outage during an ongoing charge cycle or power supply mode, the charger will continue the current operation when power is restored.
NOTE: To make sure the correct charging voltages are applied, the charging cables must not be shortened or made longer.

A scroll wheel and a back button are used to operate the charger. The scroll wheel can be turned in both directions and can also be pushed down. Turning the scroll wheel will switch between the different options available, and pushing the scroll wheel will make a selection. The back button is used to go back to the previous screen in the menu. DEFA WorkshopCharger 125A -
Fig7 MENU/OPERATION

DEFA WorkshopCharger 125A - Fig8 DEFA
WorkshopCharger 125A - Fig6

CHARGE PROCESS
See A on page 2. The figure shows the charging process in a graph with Voltage (V) and Current (I) over time (t).
The charge status is shown on the LCD display.
PRE-CHARGING ANALYSIS
The charger checks if the battery is correctly connected.
The battery’s charge level (V) is measured.
CHARGING
The charger starts charging the battery with a constant current up to the defined level in the selected charge mode. The charge voltage is then held constant at this level and the charging current is reduced until it is below a defined level. The charge voltage then drops to the defined level in the selected charge mode, before the long-term charging phase starts. If the measured battery voltage is below 2.0V in 12V or 4V in 24 modes, the charger will enter error mode, and a warning is shown on the display.
POST ANALYSIS
The charger analyses the battery again after the charging phase. Post analysis can detect batteries with a short circuit in individual cells. This cannot be detected in the pre-charging analysis. If the battery voltage drops below 12V or 24V within 2min, the charger will go into error mode and a warning will be shown on the display. The charging sequence will be stopped.

LONG-TERM CHARGING

After the battery is fully charged, the charger can be left connected to the battery for an unlimited time without damaging the battery.
The charging process is designed in such a way that the batteries are kept fully charged without causing excessive water consumption.
EXPERT MODE
This charger has a feature called “Expert mode”. In this mode, a Custom battery type option will be available in the battery type selection. Here the top charge voltage and the float charge voltage can be set by the user.
To enter Expert mode a PIN has to be entered, The PIN is 3332.

MAINTENANCE

Make sure that the connectors on both the charger and the cables are free from moisture and dirt before using the charger. All batteries should be inspected monthly as a minimum to ensure maximum safety.
The filter in the air inlet on the bottom side of the charger should be inspected and cleaned on a regular basis. See E, page 3.
The charging cables should be inspected for damage on a regular basis. If the cables get damaged they can be replaced by removing the cover below the charging cable. The screw terminals for the charging cable can be found under this cover.
If future needs require a software update of the charger, it can be done through the micro-USB port. See B page 2, number 5.
Necessary information will be given along with the software.

WARRANTY
The guarantee applies to faults in production and materials for 2 years from the date of purchase. The customer must deliver the product back to the place of purchase together with the receipt. The guarantee shall cease to apply if the charger is handled negligently, opened, or repaired by someone other than DEFA or an authorized representative of DEFA. DEFA has no other guarantee than this and will not be responsible for other costs than those referred to, i.e. no possible additional costs. Neither is DEFA bound by any other guarantee.