The digital-readout version of OTC’s 130 A load tester, for shops that want an exact number instead of a needle.

Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Cons

The OTC 130 A load tester family

Every OTC 130 A load tester model we rank, smallest first. Ratings compare each against its own type.

Model	Type	Rating	Price
OTC 3181 130 Amp	Fixed load	2.8/5	$89.37
OTC 3182 Digital 130 Amp (this one)	Fixed load	2.5/5	$187.32

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Price $187.3243
Battery coverage CCA range not published, scored as the bottom of the scale, 6 V batteries20
System tests system tests not published (neutral score used)50
Features or load 130 A load11
Warranty 1-year warranty0

An adjustable 500 A carbon-pile tester with a built-in test timer, for car, truck and farm batteries.

$135.99

Carbon pileup to 1,000 CCA12 V

A classic, low-cost load tester for checking 6 V and 12 V batteries under a real load.

$54.99

Fixed load6/12 V

A rugged fixed-load tester for quick pass or fail checks on 6 V and 12 V batteries, including side-post ones.

$89.37

Fixed load