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Aluminium 12-volt USB charger with four ports, LED voltmeter and waterproof cap

Hamzan

Hamzan 4 Port 12V USB Charger 78W Dual PD QC Voltmeter Waterproof

SKU CH-GHCS-5VQYZ

Four-port 12/24V charger delivers 78W total with dual 30W PD and dual 18W QC outputs, built-in voltmeter, and waterproof aluminium housing for marine, RV and motorcycle installs

  • TypeAutomobile Chargers
  • Charges four devices simultaneously with 78W total output
  • Dual PD 30W and QC 18W ports deliver fast charging
  • Aluminium alloy body resists scratches and dissipates heat
  • Built-in LED voltmeter monitors vehicle battery voltage in real time
  • Fits 12V and 24V systems in cars boats motorcycles and RVs

What this charger is and who it fits

This Hamzan 4-port 12V USB charger delivers up to 78W through two PD 30W ports and two QC 18W ports. It replaces a standard cigarette-lighter socket in 12V or 24V vehicles including cars, boats, motorcycles, ATVs and RVs. The aluminium alloy body resists scratches and dissipates heat without a fan. A built-in blue LED voltmeter shows real-time battery voltage so you can monitor electrical system health while driving.

Thermals noise and power draw in normal use

The all-aluminium housing acts as a passive heatsink, keeping the unit cool even when all four ports supply a combined 78W. No moving parts mean completely silent operation. The 60cm fused supply cord includes two spare fuses for circuit protection. Power is drawn only when devices are connected, and the voltmeter consumes negligible current while displaying system voltage.

The single spec that decides fit

This charger requires a DC 12V or 24V electrical system and a round mounting hole sized for a standard 12V socket. It supports PD 2.0 and QC 2.0/1.0 protocols for fast charging of phones, tablets, power banks, controllers and watches. Buyers whose vehicles lack a 12V/24V supply or who need more than four simultaneous ports should look elsewhere.

Highlights

  • Charges four devices simultaneously with 78W total output
  • Dual PD 30W and QC 18W ports deliver fast charging
  • Aluminium alloy body resists scratches and dissipates heat
  • Built-in LED voltmeter monitors vehicle battery voltage in real time
  • Fits 12V and 24V systems in cars boats motorcycles and RVs

Specifications

TypeAutomobile Chargers

Questions about this item

How do I wire the 60 cm fused cord to a 12 V or 24 V system without blowing the fuse?

Connect the red wire to the positive terminal and the black wire to negative on a 12 V or 24 V DC supply; the included 60 cm fused lead and two spare fuses protect the circuit if polarity is reversed or a short occurs.

What upkeep does the aluminium body and LED voltmeter need after months on a boat or motorcycle?

Rinse the waterproof housing with fresh water to remove salt spray, tighten the blue terminals if vibration loosens them, and replace a blown fuse from the spares; the voltmeter itself is sealed and maintenance-free.

At what combined load will the 78 W limit throttle the two 30 W PD and two 18 W QC ports?

When total draw reaches 78 W the charger reduces current across all four ports, so running both PD ports at 30 W each leaves only 18 W for the QC ports before throttling begins.

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