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Compact rectangular voltmeter with digital display and dual USB ports

Battery Voltage Meter DC 12V Voltmeter Dual USB Outlet

SKU CH-HGQ2-00KS1

Monitors 12V battery voltage and capacity while charging devices through dual 18W USB ports

  • FeaturesVolt Meter, Corded Electric, false
  • Weight44 grams
  • Sports Team1 Piece
  • TypeVoltmeter
  • Monitors battery voltage from 8 to 30 V with ±1 % accuracy
  • Tracks capacity from 20 % to 100 % and refreshes every 500 ms
  • Dual USB ports deliver 18 W each for simultaneous device charging
  • Custom low-voltage alarm flashes when voltage drops below your set limit
  • Settings remain stored after power loss thanks to power-off memory

Product identity

This DC 12V voltmeter combines a digital battery monitor with dual USB charging ports in one compact unit. It measures voltage across an 8-30V range and capacity from 20%-100% with ±1% accuracy. The device suits automotive owners and technicians who need real-time battery health data alongside device charging.

Dual USB charging ports

Two 18W outputs — one USB-A and one Type-C — allow simultaneous, interference-free charging while the meter is active. This addition removes the need for a separate charger adapter in the same socket. The corded electric design draws under 15mA when not charging, keeping parasitic drain minimal.

Measurement scope and limits

The gauge handles ternary lithium, lead-acid and lithium iron phosphate batteries within the stated voltage and capacity windows. A customisable low-voltage alarm flashes the display when levels drop below a user-set threshold. Settings survive power loss thanks to power-off memory. The unit does not support batteries outside the 8-30V range or capacities below 20%.

Highlights

  • Monitors battery voltage from 8 to 30 V with ±1 % accuracy
  • Tracks capacity from 20 % to 100 % and refreshes every 500 ms
  • Dual USB ports deliver 18 W each for simultaneous device charging
  • Custom low-voltage alarm flashes when voltage drops below your set limit
  • Settings remain stored after power loss thanks to power-off memory

Specifications

BrandLinkstyle
FeaturesVolt Meter, Corded Electric, false
Weight44 grams
Sports Team1 Piece
TypeVoltmeter

Questions about this item

How long will the digital display and USB ports last before they need replacing?

The unit weighs 44 grams and draws less than 15 mA when not charging, so the display and ports have no moving parts and typically last for years of daily use.

What stops me from charging two devices at full speed for hours on end?

Each USB port supplies up to 18 W, but the meter itself only monitors voltage from 8 V to 30 V and draws under 15 mA, so the vehicle's 12 V socket fuse is the practical limit.

How hot or noisy does the meter get when left plugged in all day?

It consumes less than 15 mA at idle, produces no fan noise and the housing stays near ambient temperature during continuous operation.

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