Scott, In the US, SamsClub in the past have carried Johnson Controls Exide Brand of Golf Cart Batteries. While Johnson may currently supply most of the Auto batteries to Interstate, Interstate golf cart batteries have in the past been supplied by US Battery. US Battery golf cart batteries are usually noted in the Interstate catalog with a U prefix ahead of the number, usually U2200,U2000 or U2300. U2000 and U2200 have the same measurements while the U2300 is about one inch taller.
I have four Interstate U2200 batteries on Windancer and after 5 seasons they appear to act like new. I never discharge them below 50% and they get recharged at the dock each week with a Truecharge 40. During the summer we spend 7-8 weeks in the North Channel, on the hook 75% of the time.
The 210 ah rating you reported would indicate the battery is a US Battery US2000, The US2200 which I have are rated at 225ah. Both measure 10 1/4 L x 7 1/8H x 11 1/8 H. They weigh 59 and 63 lbs.
These batteries are as good if not better than Trojan T105's . A Conclusion I came to after a survey I made 5 years of a number of golf cart suppliers in Florida.I talked to US Batteries Chief Engineer back then and he said I could expect 800-2000 cycles with their batteries .
Jack F Stewart
1993 C36 #1233 "Windancer"
Port Clinton, OH