...1 yellow top and 1 red top or 2 red tops or 2 yellow tops - tch, what a dilemma..!
Throw your battery blues (reds and yellows) out with the bathwater by simply spending even more money..!
I went for 2 Hawker Energy Odyssey batteries.
Pricey, but shop around and get a trade discount. These batteries are probably the only genuine starter and deep cycle in one - and good enough to be fitted to British army Land Rovers...
Land Rover Defender 130 camper