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Marine Batteries
AGM-34M, Optima, Bluetop, Group 34M, AGM Battery
BLUETOP® Marine Battery: The BLUETOP starting battery (dark gray case) is to be used when a dedicated starting battery is required; it should never be used for cycling duty. The dual-purpose BLUETOP (light gray case) can be used for both starting and deep cycling; it is a true deep-cycle battery with extremely high cranking power.
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Automotive Batteries
AGM-D34/78, Optima, Yellowtop, Group 78DT, AGM Battery
The YELLOWTOP® high-performance AGM battery is one of the few true dual-purpose automotive batteries available. With premium cranking power and impressive cycling capability, this heavy-duty battery is also perfect for modern accessory-loaded vehicles. Low internal resistance also provides more consistent power output and faster recharges.
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Marine Batteries
AGM-D27M, Optima, Bluetop, Group 27M, AGM Battery
BLUETOP® Marine Battery: The BLUETOP starting battery (dark gray case) is to be used when a dedicated starting battery is required; it should never be used for cycling duty. The dual-purpose BLUETOP (light gray case) can be used for both starting and deep cycling; it is a true deep-cycle battery with extremely high cranking power.
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Marine Batteries
AGM-D31M, Optima, Bluetop, Group 31M, AGM Battery
BLUETOP® Marine Battery: The BLUETOP starting battery (dark gray case) is to be used when a dedicated starting battery is required; it should never be used for cycling duty. The dual-purpose BLUETOP (light gray case) can be used for both starting and deep cycling; it is a true deep-cycle battery with extremely high cranking power.