Car Battery Charger 20A/10A | 12V 24V Automatic Battery Charger & Maintainer with LCD Display

Amp Control in a Compact Case

This unit uses an automatic 12V/24V DC output stage with a 7-stage charge profile and up to 300W input. Output is rated 20A on 12V systems and 10A on 24V systems for lead-acid battery types and 12V LiFePO4. The LCD displays charge voltage, output current, and charge status for in-use checks.

What the Modes Actually Do

Power comes from a 100–240V AC, 50/60Hz outlet and AC is converted internally and delivered to the battery via clamp leads. The charger detects battery system voltage (12V or 24V), then runs the programmed stages and transitions to a low-current maintain stage.

Seasonal settings adjust charge control automatically based on internal temperature sensing. Pulse mode is intended for idle batteries reading above 0.3V.

Clamp, Select, Monitor, Disconnect

Attach the clamps to the battery posts with correct polarity, then select the battery chemistry and setting before starting. Place the unit on a stable surface with airflow clearance; the internal cooling fan runs during higher current operation.

This charger is for charging sessions rather than permanent connection, and the clamps should be removed after the charge cycle ends.

Product Benefits:

• Voltage Detection: Identifies 12V or 24V battery systems automatically before charging.
• Charge Program: Uses a 7-stage charge sequence and then switches to a low-current maintain stage.
• Output Rating: Delivers up to 20A on 12V systems or up to 10A on 24V systems, depending on the detected system voltage.
• Display Readings: LCD shows charge voltage, output current, and charge status during operation.
• Cooling Operation: Integrated fan runs during higher current operation and requires airflow clearance around the housing.

Specification:

• Product Type: Automatic battery charger
• Housing Material: Polymer enclosure
• Dimensions: 8.46 × 7.30 × 4.10 in
• Weight: 2.76 lb
• Output Voltage: 12V / 24V DC (automatic detection)
• Output Current: Up to 20A at 12V or up to 10A at 24V
• Max Input Power: 300W
• Supported Battery Types: Lead-acid batteries and 12V LiFePO4
• Charging Program: 7-stage automatic charging with maintain stage
• Pulse Mode: For batteries reading above 0.3V
• Input Power: 100–240V AC, 50/60Hz
• Display Information: LCD shows voltage, current, and charge status