12 V Battery Charger
User Manual
Read Carefully Before Use
Keep for Future Reference
V20250827
• Provide this manual to all users if the device is transferred to a third party.
• If the supply cord is damaged, the appliance should be scrapped or have the cord replaced by
the manufacturer, its service agent, or similarly qualified persons in order to avoid hazards.
• This charger can be used by children aged 8 years and older, and by persons with reduced
physical, sensory, or mental capabilities, or those lacking experience and knowledge,
provided they are supervised or have been instructed on how to use the appliance safely and
understand the risks involved.
• Children should not play with the charger.
• Keep the appliance and its cord out of the reach of children under 8 years old.
• Cleaning and user maintenance must not be carried out by children without supervision.
• When charging 7–12 Ah batteries, stop after 8–10 hours to prevent overcharging. For car
batteries, charging time should not exceed 12 hours for optimal battery health.
• DO NOT operate the charger without a battery connected. Connecting the positive and
negative clips without a battery may damage the charger or cause a short circuit.
• Disconnect immediately if charging is abnormal—for example, the indicator stays red for over
10 hours or never turns green. Continuing to charge may damage the battery or cause
it to explode.
• Geben Sie das Handbuch an alle Benutzer weiter, wenn das Gerät an Dritte übergeben wird.
• Bei Beschädigung des Netzkabels ist das Gerät zu entsorgen oder das Kabel vom Hersteller,
seinem Servicevertreter oder ähnlich qualifiziertem Fachpersonal austauschen zu lassen, um
Gefahren zu vermeiden.
• Das Ladegerät darf von Kindern ab 8 Jahren und von Personen mit eingeschränkten
körperlichen, sensorischen oder geistigen Fähigkeiten oder mangelnder Erfahrung und
Kenntnis verwendet werden, sofern sie dabei beaufsichtigt werden oder in die sichere
Verwendung des Geräts eingewiesen wurden und die damit verbundenen Risiken verstehen.
• Kinder dürfen nicht mit dem Ladegerät spielen.
• Halten Sie das Gerät und sein Kabel außerhalb der Reichweite von Kindern unter 8 Jahren.
• Reinigungs- und Wartungsarbeiten dürfen nicht von Kindern ohne Aufsicht durchgeführt
werden.
• Beim Laden von 7–12-Ah-Batterien ist der Ladevorgang nach 8–10 Stunden zu beenden, um
eine Überladung zu vermeiden. Bei Autobatterien sollte die Ladezeit für einen optimalen
Batteriezustand 12 Stunden nicht überschreiten.
• Betreiben Sie das Ladegerät NICHT ohne angeschlossenen Akku. Das Anschließen der
Plus- und Minusklemme ohne Akku kann das Ladegerät beschädigen oder einen Kurzschluss
verursachen.
• Trennen Sie das Gerät sofort vom Stromnetz, wenn der Ladevorgang nicht normal verläuft –
wenn die Kontrollleuchte beispielsweise länger als 10 Stunden rot leuchtet oder nie grün wird.
Ein Fortsetzen des Ladevorgangs kann den Akku beschädigen oder zur Explosion
führen.
1
Safety Information
Specications
• ALWAYS connect the red clamp to the positive pole and the black clamp to the negative pole.
Failure to do this may damage the charger or the battery.
• ALWAYS use with compatible power sources.
• This charger is designed for 12 V lead-acid rechargeable batteries and gel batteries. DO NOT
use it to charge other batteries.
• ALWAYS plug the charger into the power outlet after connecting it with the battery; turning
o the power before disconnecting the battery from the charger. Failure to do so may result in
battery damage.
• ALWAYS place the charger in a well-ventilated location. DO NOT use it on sofa, bed, carpet
and other similar surfaces, near heat sources (radiators, stoves, etc.), or under direct sunlight.
DO NOT cover it with anything when in use.
• This charger is ONLY for indoor use. DO NOT operate it in a wet environment, such as bathroom
and kitchen.
• DO NOT drop, disassemble, or puncture the charger or otherwise it WILL cause re hazards or
electric shock. Have it checked by a trained technician before using again if it has ever endured
sudden drop or fall.
• DO NOT allow any part to become wet. If any becomes wet by accident, have it checked by a
trained technician before resuming use.
Warning!
Model
12 V / 1.2 A
Dimensions
3.8 × 1.9 × 2.2 in.
Input Voltage
110–240 V
Recommended Capacity
12 V / 7–10 Ah
Input Frequency
50–60 Hz
Maximum Output Power
15 W
Voltage Ripple
≤120 mV
Eciency (at 100% load)
≥85%
Max. Current
1.2 A
Leakage Current
≤0.25 mA
Working Temperature
50–122 °F
Working Humidity
5–95%
2
Product Diagram
Instruction
Before using the charger, ALWAYS check whether the charger is suitable for the specic type
and capacity of your battery.
Black Clamp
Red Clamp
Cable
Indicator Light
Control Box
Power Cord
Connecting the Charger
1. Connect the red clamp of the charger to the battery’s positive pole.
2. Connect the black clamp to the negative pole. The green light on the charger should be on.
Note: Be sure to connect the red clamp rst, or otherwise it may damage the charger and
battery.
ALWAYS connect the correct clamp to the correct pole.
Black clamp to
the negative pole (-)
Red clamp to
the positive pole (+)
12V 12Ah
Green light
3
3. Plug the charger’s plug into a compatible power outlet and the red light should light.
DO NOT touch the charger clamps while the charger is connected to power.
Red light
Disconnecting the Charger
When the charging is nished, the indicator light should shine steadily in green. Follow the steps
to disconnect,
1. Unplug the power cord.
2. Disconnect the red clamp from the battery.
3. Disconnect the black clamp from the battery.
4. Stow everything away.
Note: Make sure to disconnect the red clamp rst, or otherwise it may damage the charger and
battery.
Maintenance
• Keep the charger away from water.
• If it not to be used for an extended period of time, store it in a cool dry place inaccessible to
children and away from direct sunlight.
4
Disposal
Electrical products should not be disposed of with household products. In
the EU and UK, according to the European Directive 2012/19/EU for the
disposal of electrical and electronic equipment and its implementation in
national laws, used electrical products must be collected separately and
disposed of at the collection points provided for this purpose. Locations
in Australia, Canada, and the United States may have similar regulations.
Contact your local authorities or dealer for disposal and recycling advice.
BTC-1212 -00
BTC-S002 -00
Rev. 27 Aug. 2025
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contact us at help@cs-supportpro.com and we'll resolve your issue ASAP!
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