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Rectangular aluminium alloy charger, 7.87 inches wide, silver finish

VEVOR

VEVOR 12V 20A DC to DC Battery Charger 250W

SKU CH-0AFZ-W5KG8

Charges 12 V lead-acid or lithium batteries at 20 A with multi-stage profiles and built-in protection

  • TypeOther Appliances
  • Width7.87
  • Charges lead-acid and lithium batteries from the vehicle alternator
  • Multi-stage profiles suit LiFePO4 and lead-acid chemistries
  • Isolated input and output protect the vehicle electrical system
  • Over-voltage, under-voltage, over-temperature and reverse-polarity safeguards built in
  • Compact aluminium-alloy casing weighs 1.2 kg and operates from 20 °C to 50 °C

12V 20A DC-to-DC Battery Charger

This 12V 20A DC-to-DC charger delivers up to 250W to charge auxiliary batteries from a vehicle alternator. It suits lead-acid and lithium chemistries including AGM, GEL and flooded types. The aluminium alloy casing operates from -20°C to 50°C. It is built for RVs, trucks and boats needing reliable on-board charging.

Suits single-battery auxiliary systems.

This unit charges one standby battery at 20A, making it ideal for single-bank installations in commercial vehicles or yachts. Installers needing simultaneous charging of multiple isolated banks should look at dedicated multi-output chargers. The isolated input and output protect the vehicle electrical system from interference. Built-in fuses add circuit protection for the install.

20A maximum charging current

The charger provides a fixed 20A output with voltage ranges of 13.2V–14.7V for lead-acid and 12.6V–14.6V for lithium batteries. Multi-stage profiles handle bulk, absorption and float for lead-acid plus a two-stage LiFePO4 routine. Input accepts 8V–16V DC from the alternator. Weighing 1.2kg and measuring 7.87 inches wide, it fits compact mounting locations.

Highlights

  • Charges lead-acid and lithium batteries from the vehicle alternator
  • Multi-stage profiles suit LiFePO4 and lead-acid chemistries
  • Isolated input and output protect the vehicle electrical system
  • Over-voltage, under-voltage, over-temperature and reverse-polarity safeguards built in
  • Compact aluminium-alloy casing weighs 1.2 kg and operates from 20 °C to 50 °C

Specifications

TypeOther Appliances
Width7.87

Questions about this item

What does the 20 A charging current mean for my auxiliary battery?

The unit pushes up to 20 amps into the battery, so the actual recharge speed depends on the battery's capacity and state of charge.

What input voltage range does the charger accept from the vehicle alternator?

It operates from 8 V to 16 V DC, covering typical 12 V alternator output even under load or voltage drop.

How much space do I need to mount the aluminium-alloy casing?

The chassis is 7.87 inches wide and weighs 1.2 kg, so allow clearance for that footprint plus cable bend radius.

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