Best Car Battery Replacement in Oshkosh, WI
10 technicians listed · 6 in Oshkosh · 1 open weekends · 8 rated 4.5+
Data verified October 20, 2026
Auto Authority LLC
Hummer Parts Guy
Expert Automotive Services LLC
Simon's Auto Service
Lake-Aire Auto Service Inc
Listed for drivers in and around Oshkosh, WI, these 10 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: Oshkosh, WI
6 of the 10 technicians we list are based in Oshkosh; the other 4 serve Oshkosh from towns including Omro (8 mi), Neenah (9 mi) and Winneconne (10 mi). The technicians on this page are rated from 4.2 to 5.0 across 2,538 reviews; 8 have 50 or more reviews and 8 are rated 4.5 or higher. 1 is open on weekends. 3 have a BBB rating of A or A+. Domain records put 7 websites of the technicians on this page at ten or more years old; the oldest dates from 2003. 2 offer financing; 2 give free estimates; 1 is family- or locally-owned and 2 list coupons or special offers. We have a website on file for 8 of the technicians on this page; 8 publish a contact page; 4 list a public email and 2 take bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Which shops listed for Oshkosh test batteries for free?
2 of the 10 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.