On the water, what takes you out has to bring you back. The OPTIMA® BLUETOP® battery delivers the power you can rely on. Its patented SPIRALCELL TECHNOLOGY® means more running time, faster recharge, and up to twice the life of traditional marine batteries. And it’s specifically built to handle the demanding challenges of marine applications.
The OPTIMA® BLUETOP battery is completely spill-proof and maintenance-free. It’s lightweight and can be mounted virtually anywhere and in any position. It’s over 15 times more resistant to vibration than other batteries, which matters in the hull of a boat. And it retains its charge longer and recharges faster thanks to its remarkably low self-discharge rate. And that can mean a quicker return to the water after the off-season.
BLUETOP® Deep Cycle
OPTIMA's BT DC 4.2 and BT DC 5.5 BLUETOP batteries are dual-purpose batteries. They can be used in any deep-cycle (marine accessory, house applications, trolling motor, bow thrusters) or starting applications.
BLUETOP SLI (Starting, Lighting, Ignition)
OPTIMA's BT SLI 4.2 BLUETOP battery is a starting battery. Although you can use a deep-cycle battery in any application, starting batteries can only be used for starting applications.
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