Best Car Battery Replacement in St. Louis, MO
19 technicians listed · all 19 in St. Louis · 2 open 24/7 · 5 open weekends · 14 rated 4.5+
Data verified October 19, 2026
123 Auto
Master Auto Repair
Fred's South County Auto Repair
Eric's Master Auto Repair
Jackson's Master Auto Repair
Listed for drivers in and around St. Louis, MO, these 19 shops sell, test and fit car batteries. What each one says about testing, fitting, warranties and stock comes from its own website; ratings and quotes come from public reviews.

Area overview: St. Louis, MO
All 19 technicians we list here are in St. Louis itself. 17 of the technicians on this page have a rating, from 4.4 to 5.0 across 2,156 reviews; 11 have 50 or more reviews and 14 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "communication" and "honest". 2 are open around the clock; 5 are open on Saturdays and 2 on Sundays. 1 shows a license on its website; 3 list staff certifications (ASE) and 4 have a BBB rating of A or A+. 15 have ten or more years of experience, the longest 58 years. 2 offer emergency or roadside call-outs; 2 offer financing; 2 give free estimates; 1 is family- or locally-owned and 7 list coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for 17 of the technicians on this page; 13 publish a contact page; 10 list a public email and 3 take bookings online. We count these figures across the technicians on this page; hours and prices change, so confirm the details with the technician before you visit.
Which shops listed for St. Louis test batteries for free?
2 of the 19 shops advertise free estimates or checks. A free test is common in this trade because the seller expects to sell you a battery, so ask for the actual numbers from the tester rather than a verdict, and keep the printout.