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Compact aluminium box with side fins, 7.87 inches wide, black finish

VEVOR

VEVOR 12V 30A DC-DC Battery Charger 375W

SKU CH-D0F4-5531F

A 12 V 30 A on-board DC-DC charger delivering 375 W for lead-acid and lithium batteries in RVs, trucks and boats

  • TypeOther Appliances
  • Width7.87
  • Charges lead-acid and lithium batteries from 12 V alternators
  • Smart multi-stage profiles: 3-stage for lead-acid, 2-stage for LiFePO4
  • Built-in over-voltage, under-voltage, over-temperature and reverse-polarity protection
  • Isolated input and output prevent electrical-system interference
  • Compact aluminium-alloy case, 7.87 in wide, weighs 1.2 kg

Versatile Battery Compatibility

This 12V 30A DC-to-DC charger accepts an input range of 8V to 16V and charges both lead-acid and lithium batteries. It suits standby battery setups in RVs, trucks and boats where the alternator feeds a secondary bank. The aluminium alloy casing weighs 1.2 kg and measures 7.87 inches wide.

Smart Multi-Stage Charging

Lead-acid cells receive a three-stage bulk, absorb and float cycle between 13.2V and 14.7V. Lithium packs use a two-stage LifePo4 profile from 12.6V to 14.6V. Maximum output reaches 375W at 30A, so larger banks charge quickly while smaller ones taper safely.

Built-In Protection Limits

Over-voltage, under-voltage, high-temperature and reverse-polarity safeguards shut the unit down outside safe bounds. Isolated input and output prevent electrical interference with the vehicle system. Operating temperature spans -20 °C to 50 °C, so extreme cold or engine-bay heat can halt charging until conditions return to range.

Highlights

  • Charges lead-acid and lithium batteries from 12 V alternators
  • Smart multi-stage profiles: 3-stage for lead-acid, 2-stage for LiFePO4
  • Built-in over-voltage, under-voltage, over-temperature and reverse-polarity protection
  • Isolated input and output prevent electrical-system interference
  • Compact aluminium-alloy case, 7.87 in wide, weighs 1.2 kg

Specifications

TypeOther Appliances
Width7.87

Questions about this item

Will the 30A charger work with my existing 12V alternator that outputs between 8V and 16V?

Yes, the input range is DC 8V to 16V so it matches a standard 12V alternator output.

How do I know the multi-stage charging is running correctly once installed?

The unit follows a 3-stage bulk, absorb, float profile for lead-acid and a 2-stage profile for LiFePO4; voltage will settle at 13.2V–14.7V or 12.6V–14.6V respectively when charging finishes.

The box lists three fuses — do I need to buy any extra wiring or connectors?

The package includes the charger, three fuses and a manual; any input/output cables, terminals or mounting hardware must be sourced separately.

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