On July 10, 2016, I just threw in a Walmart Everstart (Maxx H6?) battery 3-year free replacement, + 2 years pro-rated? Paid a little over $100, IIRC. No problems. This was at 93337 miles and I’m now at almost 127,000 miles. By the time I hit the 3-year anniversary, I’ll have around 133,000 on the odometer.
The only thing I’d say about these Everstart batteries is - I’d go with the model with the higher CCA number if I lived in a snow belt state. When it gets cold down here in the South, it cranks noticeably slower.
2011 Equinox 1LT (new Jan 2011): Summit White / 3.0 L V6 / FWD / Pioneer Stereo / 18" Wheels / 138.2k miles [05-NOV-2019]
2002 Impala 1LT (new Jun 2002): Summit White / 3.4 L V6 / FWD / Cassette-CD Combo /225.5k miles [05-NOV-2019]