Battery Gauges | McMaster-Carr

	For Battery Voltage For Battery Voltage

12V

24V

36V

48V

	Measures Measures

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Voltage Maximum Voltage

6V DC

14V DC

	For Panel Cutout Diameter For Panel Cutout Diameter

	Width Width

	Depth Depth

	Maximum AC Current Maximum AC Current

	Height Height

	For Battery Type For Battery Type

Rechargeable

Disposable

	Maximum DC Current Maximum DC Current

	Battery Chemistry Battery Chemistry

Dry-Cell AGM Lead Acid

Wet-Cell Lead Acid

	Window Material Window Material

Plastic

Glass

	For Battery Size For Battery Size

AAA

All Button/Coin Cell Batteries

	Input Resistance Input Resistance

	Mount Type Mount Type

Threaded Stud

Adhesive

	Input Frequency Input Frequency

	For Panel Cutout Depth For Panel Cutout Depth

	Mounting Stud Thread Size Mounting Stud Thread Size

4-40

6-32

	Battery Connection Type Battery Connection Type


Clamp	Ring Terminal

	Specifications Met Specifications Met

UL Recognized
Component

C-UL Listed

UL Listed

	Maximum Specific Gravity Maximum Specific Gravity

1.3

1.35

	Digital Display Type Digital Display Type

LED

LCD

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108 Products

Electrical

Monitors for Large-Cell Batteries

Install on lift trucks and other electric vehicles to display battery condition.

Large-Cell Battery Surge Protector/Charge Monitors

See the charge level of a large-cell battery while protecting it from power surges. This monitor also checks the condition of your charging system.

Voltage and Conductivity
Testers for Large-Cell Batteries

Measure the voltage of your batteries as well as the current they can supply to check battery health.

Battery Load Testers with Alternator
Test Lead for Large-Cell Batteries

In addition to applying a fixed load to small engine batteries that draw up to 125 amps, this tester can check for defective alternator diodes.

Adjustable Battery Load Testers for Large-Cell Batteries

Test large engine batteries that draw up to 500 amps. Turn the dial to vary the load applied to the battery to see how it performs at different loads.

Battery Load Testers for Large-Cell Batteries

Apply a fixed load to small engine batteries that draw up to 125 amps.

Battery-Life Testers

Check if it's time to replace your disposable batteries.

Panel Monitors

See how much electricity motors, generators, and other electrical equipment use. The high-visibility digital screen displays electrical measurements with more accuracy than an analog panel monitor.

Analog Panel Monitors

Observe rapidly changing electrical values in equipment such as motors and generators with an analog display that shows the magnitude and rate of change more easily than a digital display.

Chemistry Testing

Battery Testing Density Meters

Check the condition of battery fluid by measuring its density to indicate the state of charge.

Concentration Meters

Also known as refractometers, these measure concentration with two or three drops of a solution.