Thought I'd pass this info along. Interstate Battery Systems 3014 Old Spanish Trail 77054 (713)747-9970Just picked up two SRm-29 deep cycle with a RC210 for 129.95 each. He also gave me an Optima blue top AGM for my starting battery for the same price as the interstate group 27 133.95 since he was out of the interstate group 27 and he already rang me up. He also said the warranty on the SRM-29's were one year replacement with no pro rate but if they went bad within 2 years he'd work me a deal on some new ones. Really nice guy and he is willing too work with you to earn and keep your buisness. Thought I'd share my good experience in case some of y'all were needing some batteries and might be able to save a buck or two.