How does EverStart battery warranty work?
Similarly, do I need receipt for Walmart battery warranty?
If it is an EverStart battery, which is pretty much a Walmart brand, then they will honor the warranty length which is stated on the battery itself. If it's not a battery sold at Walmart, you have no receipt and they cannot determine how old it is, likely they will not exchange it.
Then, how does Walmart battery warranty work?
How does the EverStart Maxx limited warranty work with a prorated plan? If it's greater than three years but less than five years, and they test your battery and find it's dead, Walmart will prorate you the remaining months left on your warranty and apply the discount towards the purchase of a new battery.