OEMTOOLS Battery Load Tester 24338 - 6/12V 100A, 10-Second Test, Shock-Resistant Steel Case

The OEMTOOLS 24338 is a handheld 100A battery load tester that quickly evaluates 6V and 12V battery condition, cranking voltage, and charging system performance in about 10 seconds.

Compact and built for workshop or roadside use, this tester combines a shock-resistant analog meter, copper-plated heavy-duty clamps, and a reinforced steel housing with a carrying handle. It works on automotive, motorcycle, marine, RV, and deep-cycle batteries up to 1,000 CCA, offering fast, durable diagnostics without complicated setup.

How fast and reliable are the test results?

Results are produced in roughly ten seconds, giving a quick snapshot of battery health and cranking capability so you can decide whether a battery needs charging, further testing, or replacement. The analog meter provides a clear readout even in varied light and vibration conditions.

• 10-second load test cycle for rapid diagnostics
• Measures state of charge and cranking volts
• Shock-resistant meter for stable readings in workshops or garages

What battery types and sizes will this tester handle?

This unit supports both 6V and 12V systems and works with batteries rated up to 1,000 CCA, covering most passenger vehicles, motorcycles, marine batteries, ATVs, and many RV systems. It’s compatible with standard lead-acid and many deep-cycle batteries used in recreational and utility applications.

• Compatible with 6V and 12V batteries
• Suitable for batteries up to 1,000 CCA
• Works on automotive, marine, motorcycle, ATV, RV, and deep-cycle batteries

How durable and portable is the tester for field work?

Designed with a steel case and a robust carrying handle, the tester resists shocks and stands up to workshop wear. Copper-plated clamps deliver a secure electrical connection and resist corrosion, helping maintain accuracy over time in mobile service environments.

• Sturdy steel housing protects internal components
• Copper-plated heavy-duty clamps for reliable contact
• Compact form with handle for easy transport and storage

What measurements and diagnostics does it provide?

Beyond a load test, the device helps you assess charge level, cranking voltage under load, and charging system response. Use these readings together to determine whether a battery, starter, or charging circuit is the source of an electrical issue.

• State-of-charge indication for quick battery assessment
• Cranking voltage under simulated load to spot weak batteries
• Helps evaluate alternator/charging system performance when combined with proper testing procedure

Who is this for: The OEMTOOLS 24338 is aimed at professional mechanics, mobile service technicians, and DIY vehicle owners who need a rugged, straightforward load tester for routine battery and charging system checks. If you require fast, on-the-spot battery diagnostics with a tool that withstands workshop conditions and field use, this tester provides the core features and build quality to support those needs.