I had a 2018 29H. If I remember they were Group 27 batteries.
If the stock ones did the job, you could go with this Duracell wet battery:
https://www.batteriesplus.com/produc...le/12/sli27mdc
If you want maintenance free, you can go with this Duracell AGM:
https://www.batteriesplus.com/produc...12/sli27magmdc
I wanted to put 6V Golf Cart batteries in my 29H but it was tough finding a size that would fit in the 29H battery tray. I did go with the 6V Duracell's for my Magnitude SV34. They are made in the USA and a quality battery.