Best Ladegert 12v 20a 2025

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Last Updated - 10.09.2025

Best Choice

01

Victron Energy

Victron Energy Blue Smart IP22 Battery Charger, 12 V with 1 or 3 outputs, 15A, 20A, 30A

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40% Off
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile Compatibility: Compatible with 12V and 24V lead-acid and lithium-ion batteries, ideal for cars, motorcycles, boats and RVs in garages or other sheltered areas where weather resistance is not crucial.
Restore deeply discharged batteries: Forced charge function and built-in desulfator allow deeply discharged or "dead" batteries to be reactivated, extending their usability and avoiding unnecessary battery changes.
Overheating Protection With an efficiency of up to 94%, the charger generates up to four times less heat compared to the industry standard, which improves protection against overheating.
Efficient 6-stage charging algorithm Our battery charger charging algorithm goes through six precisely tuned stages, which ensure optimal and gentle charging and extend the life of your batteries.
BUILT-IN BLUETOOTH: Thanks to the built-in Bluetooth function, you can monitor the charging status of your battery anytime and from anywhere via the VictronConnect app in real time without having to manually check the device.

135,91 € 228,69 €(40% Off off)
02

APA

APA 16623 Werkstattladegerät 12 V, 6V 20A

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With alternator tester
Suitable for 6 V/12 V AGM, gel, wet and maintenance-free lead-acid batteries
Large multi-function display for charging progress, charging voltage, charging current
Input: 220 - 240V AC, 50/60Hz
Charging voltage: 6/12 V
Charging current: 2/10/20A
Battery capacity: 1.2 - 300 Ah
Battery analysis function automatically detects deeply discharged or defective batteries
Automatic reactivation function
Automatic fuse in case of overheating, short circuit and reverse polarity

99,90 €
Value for Money

03

HTRC

20A Car Battery Charger, 12 V/24 V Battery Charger Car, Chargers for Car Batteries, Trickle Charger and Desulfator for Motorcycle, Lawn Mower, Boat, Lithium, LiFePO4, Lead Acid (AGM, Gel, etc.)

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25% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide applications: car battery charger is only for 12 V/24 V LiFePo4 batteries, lithium batteries, lead-acid batteries (AGM, calcium, GEL, MF, EFB, SLA, VRLA, WET etc.). It is widely used to safely and efficiently charge cars, motorcycles, boats, lawn mowers, etc.
What you get: charger car battery, reinforced crocodile clip with protective cover, 3 metre long power cable made of pure copper with soft core, instruction manual (English language not guaranteed). If you have any questions, please contact us do not hesitate to contact us.
Multiple safety protection: spark protection, short circuit protection, reverse protection, undervoltage protection, overvoltage protection, overcurrent protection, overheating protection. Shell made of fireproof material. Strong power cord and alligator clip to ensure your safety.
Highly efficient pulse repair: car charger uses 9-stage automatic charging, including battery detection, desulphurisation, trickle charging, etc. The repair mode is used to repair and activate old and weak batteries. Note: Totally empty batteries cannot be activated or charged.
Chargers for car batteries: 12 V/24 V LiFePO4 charger automatically detects the battery voltage. Fast car battery charger switch 4 modes with one button, 3-stage current setting (peak current 20A). With LCD screen, display battery voltage, charging current, charging temperature, full battery, summer mode, winter mode, etc.

55,89 € 74,99 €(25% Off off)
04

QWORK

QWORK® Switching Power Supply DC 12 V 20 A LED Power Supply Transformer, 240 W, Used for Automation, LED Display, Communication

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wiring transparent protective cover: the terminal has a rust and corrosion protection function, adopts the group wiring, and installs a safety protection cover
Wide Application Products are widely used in industrial automation, communication, LED lighting and display, medical treatment, beauty equipment, security and other industries.
Voltage Range: Input Voltage: AC100V-120V/175V-245V. Output voltage: DC 12V 20A. The current range is 0-20A. The maximum power is 240W.
Multiple protection: short circuit protection: the output terminal is short-circuited, automatically disconnected and returns to normal state after eliminating the anomaly. Surge protection: the output voltage is >115-120% of the rated voltage and the power supply is interrupted.
Metal mesh heat dissipation design: heat dissipation design made of honeycomb metal mesh, more efficient heat dissipation and longer power supply life

16,16 €
05

Husgw

12V/24V 20A Car Battery Charger, Car Battery Charger Fully Automatic Intelligent Trickle Charger, LCD Screen Smart Fully Automatic Charger for Car, Motorcycle, Truck, Lawnmower

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Plug and play, easy to use: Husgw car charger requires no complicated settings, it is plug and play and can be easily used in different situations. A single charger can allow fast charging, battery maintenance and repair, trickle charging and desulfurization of the battery. An essential car charger for indoor and outdoor use.
Multiple safety precautions: Our motorcycle battery charger has multiple protection devices such as low voltage protection, overvoltage/over-current/short circuit/overheating protection to ensure your safety. The charging current is automatically adjusted to avoid damage to the battery, and it will automatically shut off when fully charged. The built-in cooling fan precisely controls the temperature of the charger to avoid overheating and extend the life of the battery.
LCD display: touchscreen control, scrolling data. The battery charger car can freely switch between multiple modes, normal and dual mode charging. The motorcycle battery holder has a liquid crystal display. You can determine the voltage, current, temperature and remaining power of this charging set at any time. Automatic detection of current voltage after power on, no manual operation required.
Effective pulse repair: when the repair function of the intelligent battery charger is activated, the high frequency and low frequency pulse technology will create good effects when repairing and activating the battery. It will automatically detect the sulphation of the battery and the acid layering to activate the battery perduec. Note: The 12V/24V car battery charger has limited functionality and cannot activate a discharged battery or repair a badly damaged battery. Even if a defective battery is repaired, it cannot be converted into a 100% new battery.
Chargers for charging and repairing: Husgw charger car battery 12 V/24 V 20 A, suitable for quick charging or repairing 12 V/24 V 4AH-300 Ah batteries. Including AGM, GEL, WET, SLA and other batteries for cars, trucks, SUVs, motorcycles, lawnmowers, ships, etc.

54,99 €
06

GBKDQQ

Switching Power Supply 12 V 20 A 240 W, Car Power Adapter Voltage Converter AC 240 V to DC 12 V Power Supply Socket, Suitable for LED Strips, CCTV, Radio, Camera, Electronic Instruments

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide application: this switching power supply is widely used in industrial automation, RVs, radios/car radios, LED light strips, CCTV, computer projects, engine pumps, security cameras, LCD monitors, laboratory computers and other 12 volt devices
Stable Power Supply The 12 volt power supply has overload protection, over-current protection, overheating protection and short circuit protection, which can protect your devices from damage. The converter processes input voltages between 100V and 240V, ensuring household current is safely converted to DC
Efficient Heat Dissipation The power supply 12V 20A 240W switching power supply adopts aluminum housing with hollow design for efficient heat dissipation. The car power supply transformer has a built-in fan and dust filter that effectively prevents dust from entering, ensures stable fan rotation and prevents the circuit board from burning out
Easy Installation The voltage converter is user-friendly and easy to install. Simply connect it to your household power supply and enjoy a stable 12V power supply for your devices
12V switching power supply: voltage converter input voltage 100V-240V AC, output voltage 12V DC; the output current mainly depends on your equipment, converts 240V AC to stable 12V DC, very suitable for various vehicle equipment

20,99 €
07

Kingwen

Kingwen Switching Power Supply 12 V 20 A Power Supply Adapter Transformer 240 W LED Transformer Power Supply for LED Strips, AC 100 V / 240 V to DC 12 V 20 A 240 W

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Voltage range: Input voltage: AC 85-265V. Output voltage: DC 12V 20A. The maximum power is 240 W
Quadruple protection: 12 V 20 A power supply adapter transformer provides overload protection, overvoltage protection, overcurrent protection and short circuit protection. Excellent drive with built-in safety protection device to ensure safety and stability
High-quality material: the shell of the switching power supply 12 V 20 A power supply adapter transformer is made of durable aluminium. The internal coil of the power supply 12 V transformer consists of a pure copper coil, and the service life is more than twice as high as that of aluminium wire. LED transformer 12 V power supply has good conductivity, high efficiency and no noise
Customer service: We strive to provide you with the best products. If you have any questions, please feel free to contact us
Application: 12 V 20 A power supply transformer switching power supply is suitable for LED light strips. It is also suitable for security monitoring, routers, screens and audio devices with the same current and voltage

24,99 €
08

Yinleader

Car Battery Charger 20A 12V/24V Battery Charger Car Intelligent Trickle Charger with LCD Screen, Chargers for Car Batteries and Motorcycle Battery

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The car battery charger is suitable for 12V/24V 2Ah-150Ah lead-acid batteries (AGM, GEL, SLA, VRLA). Suitable for most battery types, calcium batteries, gel AGM batteries, wet batteries and lead-acid battery. At the same time, it can be used for 12V/14.4V LiFePO4 batteries (not 24V).
Smart Battery Charger & Digital LED Indicator:The LED screen displays the voltage, current and remaining battery capacity values. You can easily check the battery status.
SAFETY This 20A car battery charger has multiple protection functions such as short circuit protection, over-current protection, cooling system and reverse polarity protection.
Intelligent multi-stage charging, pre-charging with a small current of 2.5A in the initial phase and then transition to charging with set current after 15 minutes. The current is intelligently adjusted according to the different phases to maintain the long-term use of the battery. If you do not receive the DE manual, please contact the seller to receive the PDF file.
Battery repair: it has a repair function, the repair function activates long unused batteries, old batteries and batteries that cannot be charged. Your low voltage battery is saved! If the battery cannot be charged, please use the repair function to repair the battery before charging it normally.
20A Car Battery Charger:The 12V/20A and 24V/10A fast chargers for car batteries charge much faster than 15A car chargers. Multi-stage charges with fast and trickle charging protect your battery.

54,73 €
09

GEARLASSO

GEARLASSO 12 V Power Supply, 20 A 240 W 12 Volt Power Supply Transformer Adapter 110/220 V, Switching Power Supply, Power Supply, Voltage Converter, Power Supply for Auxiliary Heating LED, Industrial

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8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Work anywhere: Lightweight and portable design. The size of the diesel heater power supply is quite compact, so it works in smaller spaces. Dimensions: 22 x 12 x 5.5 cm (L x W x H).
Wide use: 12 V power supply is ideal for diesel auxiliary heater, LED lights, 3D printers, amateur radio transceivers, CCTV cameras, car subwoofer amplifier, audio amplifier, wireless router, ADSL cats, HUB, audio/video power supply. Suitable for indoor use only
Stable power supply: simply adjust the voltage you need for certain items and leave it at this voltage. 20 A 240 W transformer is constantly on the preset volts and keeps stable performance.
Safety protection: short circuit protection, overload protection and surge protection are functions that protect your device from damage. Note: Please change the input voltage to 110V or 220V according to the local voltage before use. The standard input voltage is 220 V.
Easy to use: this LED power supply 12 V does not need to be installed, but can be used to change the output after the wires have been connected. The power supply has a built-in potentiometer. The output parameter can only be changed by turning the potentiometer.

19,99 €
10

Yinleader

Car Battery Charger 20A 12V/24V Battery Charger Car Fully Automatic Intelligent Trickle Charger with LCD Screen, Chargers for 12 V LiFePO4 Battery - Black

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8.0

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

There are two battery modes available:1-lead acid battery type, can automatically identify multiple types of lead-acid batteries(STD, AGM, GEL, SLA, VRLA) 2-12V LiFePO4 battery mode: newly added LiFePO4 battery mode, one charger meets multiple requirements. This charger is enough to charge a 12V battery.
Safety: this 20A car battery charger has multiple protection functions such as short circuit protection, over current protection, cooling system and reverse polarity protection. The repair function activates long unused batteries, old batteries and batteries that cannot be charged.
Intelligent multi-stage charging, pre-charging with a small current of 2.5A in the initial phase and then transition to charging with set current after 15 minutes. The current is intelligently adjusted according to the different phases to maintain the long-term use of the battery.
Intelligent Battery Charger & Digital LCD Display: LCD screen displays voltage, current and remaining battery capacity values. You can easily check the battery status.
Battery Repair: It has a repair function that can activate batteries that have not been used for a long time, old batteries and batteries that cannot be charged. Your low voltage battery is saved! If the battery cannot be charged, use the repair function to repair the battery and then charge it normally.
20A car battery charger: the 12V/20A and 24V/10A fast chargers for car batteries charge much faster than 10A car chargers. Multi-stage charges with fast and trickle charging protect your battery.

59,99 €