Here we have a 2024 Motocaddy SE Ultra with a 18 hole lithium battery that has had very little use. It was bought as 'New Old stock' in August 2025, in an unopened box, and used until January this year. Although it has an 18 hole battery, the full charge never dropped below half, after 18, so you can probably get 36 holes from it. It comes with the charger.
eBay