Dual purpose, but specially adapted for deep cycling, an Optima BlueTop in your boat or RV means more running time, faster recharges, and up to 3 times the cycle life of a traditional battery.
BlueTop batteries feature both SAE Automotive posts and 5/16" threaded studs for easy installation in your boat or RV. It is ideal for powering heavy electrical loads including boats with GPS, pumps, fish finders, etc. Also trucks with winches, cars with high-demand audio systems, commercial trucks, etc.

Note: the 34M is for starting only, and is not suited for running heavy DC loads; it provides high cranking capacity in a group 24/34 size case

Spiral design provides lower internal resistance for high efficiency performance
Spill proof - no excess liquid; can be operated in any position without the risk of leakage
Never needs water; sealed - so no corrosion can form on the posts, connectors, or cables
Longer service life - 3 to 4 times a normal starting battery
Unaffected by vibrations that destroy ordinary batteries
More economical than ordinary batteries over the long life of the battery
Height in Table includes terminals
Dual top posts: SAE automotive & 5/16"-18 UNC stainless steel threaded studs
Overall dimensions (including terminals): 12-1/4"L x 6-7/8"W x 9-7/8"H
2 year free replacement warranty