Manufacturer of high-performance AGM batteries and chargers for automotive, marine, and heavy-duty applications, known for their RedTop, YellowTop, and BlueTop series.
Optima Batteries is a leading manufacturer of high-performance automotive, marine, and heavy-duty batteries. Renowned for their proprietary SPIRALCELL TECHNOLOGY®, Optima products offer superior vibration resistance, extended cycle life, and faster recharge capabilities compared to traditional lead-acid batteries.
The brand's product lineup includes the RedTop for reliable starting power, the YellowTop for deep-cycling and accessory-heavy vehicles, and the BlueTop for marine and RV applications. In addition to batteries, Optima produces a line of digital battery maintainers and chargers designed to maximize battery life and performance.
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RedTop batteries are designed for normal engine starting where an alternator monitors the state of charge. YellowTop batteries are dual-purpose, offering deep-cycle capabilities for vehicles with heavy electrical loads or accessories. BlueTop batteries are designed for marine and RV applications; the dark gray case is for starting only, while the light gray case is for dual-purpose deep cycling.
Shandisa voltage-regulated charger with AGM compatibility limits. For regular charging, 13.8 to 15.0 volts at 10 amps is recommended. For float charging, use 13.2 to 13.8 volts at 1 amp maximum. Do not use Gel battery settings.
If the battery drops below 10.5 volts, some standard chargers may not recognize it. You can connect a second fully charged battery in parallel to the discharged one to trick the charger into starting, or use an OPTIMA specific charger designed to recover deeply discharged batteries.
Warranty terms vary by product model and usage. Detailed warranty information is available on the official Optima Batteries website under the warranties and manuals section.