Auto Meter Battery Tester - RC-300

universal fit logo


  • Auto Meter | Part Number: AMGRC-300
  • Load:40 Amp
  • Fitment:Universal Fit


Be sure your batteries are up for the task by using this high quality battery tester. By testing your battery periodically you will be assured your battery will not leave you stranded.

Customer Reviews

1.0 1.0
1 Customer ratings
1.0 Does not perform as advertised

Product requires a brand new battery to perform accurate test on old batteries. This was confirmed with the manufacturer. But it is not stated as such in the user manual. The readings it produced without first testing a new battery indicated that my 6 year old batteries had more capacity than they were ever designed to have. And not just a little more, they are 28Ah and this tester tested them to be 38Ah. The manufacturer claims that the tester is a "professionally accurate reserve capacity battery load tester" "quick and accurate results". But it does not provide accurate tests without having a new battery to test an old battery.

from Huntsville, AL |

Question & Answers

0 Answered question


Auto Meter began in the backyard of one Mr. Vern Westberg in 1957 and it has grown steadily in technological advancement since those days. Based in Sycamore, Illinois, Auto Meter has evolved into a high technology enterprise with a super sophisticated cellular manufacturing system that is ISO 9000:TS 16949 certified. The onsite engineering team and product technology team combine to bring Jeep drivers the most accurate instrumentation products on the market. The Auto Meter rev control tachometers and quick responding tachometers have a sophistication of instrumentation accuracy that is unmatched in the industry. Shop Auto Meter Now


Sign up to receive deals by email!

Sign up to receive deals by text!

By submitting, you agree to receive recurring autodialed marketing text msgs (e.g. cart reminders) to the mobile number used at opt-in from 4 Wheel Parts (4WP) on 21208. Consent is not a condition of purchase. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy