Purchased an X2 battery for my pickup 2 years ago. It was supposed to have a 5 year warranty. At 1 year, the battery failed. BatteryPlus replaced it under warranty. That also failed at 1 year. Batteries Plus says that they fulfilled the warranty but now instead of having a battery for 5 year, mine only lasted 2 year total for the original and a replacement. So I feel like I paid the higher price for a 5 year battery but got a 2 year battery. I feel like they own me for 3 year.
I tried to post this on their website but they only post the 5 and 4 star reviews. My suggestion is don't buy batteries at BatteriesPlus. They don't stand behind their products. Personally, I won't buy anything from them.