Popular Cities
2 of these technicians are based in Diamond Bar; the others serve Diamond Bar from towns including Anaheim (11 mi), Ontario (12 mi) and Rowland Heights (5 mi).
1 open 24/7 · 6 open weekends · 14 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Listed for drivers in and around Diamond Bar, CA, these 15 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.
The 15 technicians on this page are rated from 4.4 to 5.0 across 3,974 reviews; 13 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", "diagnosis" and "honest". 1 is open around the clock; 6 are open on Saturdays and 2 on Sundays. 1 shows a license on its website; 1 lists staff certifications (ASE) and 5 have a BBB rating of A or A+. Domain records put 10 websites of the technicians on this page at ten or more years old; the oldest dates from 2000. 1 offers emergency or roadside call-outs; 5 offer financing; 3 give free estimates; 3 are family- or locally-owned and 6 list coupons or special offers. We have a website on file for 14 of the technicians on this page; 12 publish a contact page; 12 list a public email and 8 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.
3 of the 15 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.
