This collection of commercial 5 TBX Thunderbolt 8-volt batteries, marketed as "The Toughest Batteries in Golf," was acquired new in April 2024 for $1,422, as evidenced by the attached receipt. They were removed to facilitate a transition to lithium batteries, as I found the maintenance of these units to be cumbersome. Upon testing, they registered 51.1 volts at full charge. Please note that these batteries are out of warranty and will be sold in their current condition. Additionally, I have a set of 4 gauge cables with stainless steel terminal nuts available for inclusion if desired. The batteries are located in Ocala, and it is important to mention that they are quite heavy; I am UNABLE to assist with lifting them due to recent cardiac bypass surgery.