OPTIMA BlueTop 34M AGM Marine Starting Battery

Description

The OPTIMA BlueTop 34M is a high-performance AGM marine starting battery engineered to deliver reliable cranking power in demanding marine environments. Featuring OPTIMA’s exclusive SpiralCell design with 99.99% pure lead, it provides strong starting performance, efficient charging, and long service life.

Starting Power Only: Designed specifically for engine starting – not intended for deep cycle applications such as running accessories or trolling motors.

Key Features

• Marine starting battery – not intended for deep cycle use
• 800 Cold Cranking Amps (CCA)
• 1000 Marine Cranking Amps (MCA)
• 50Ah capacity
• 110 minutes Reserve Capacity
• Exclusive SpiralCell technology with 99.99% pure lead
• Up to 3x more recharges than standard flooded batteries
• More than 15x vibration resistance
• Maintenance-free, spill-proof AGM design
• Mountable in virtually any position (except inverted)

Specifications

• Group Size: 34
• Voltage: 12V
• Cold Cranking Amps (CCA): 800
• Marine Cranking Amps (MCA): 1000
• Capacity: 50Ah
• Reserve Capacity: 110 minutes
• Terminal Type: Dual Marine Terminals (SAE Post & 5/16″ Stud)
• Chemistry: AGM (Absorbent Glass Mat)

Dimensions & Weight

• Length: 10.06″ (256 mm)
• Width: 6.88″ (175 mm)
• Height: 7.94″ (202 mm)
• Weight: 38 lbs (19 kg)

Common Applications

• Marine engine starting
• Boats without significant accessory loads
• Applications requiring reliable cranking power

FAQs

Is the OPTIMA 34M a deep cycle battery?
No, the 34M is designed as a starting battery only. If you need power for trolling motors or electronics, consider a dual-purpose model like the D34M.

What is the difference between 34M and D34M?
The 34M is a starting battery, while the D34M is a dual-purpose battery designed for both starting and deep cycle use.
View the D34M here.

Is this battery maintenance-free?
Yes, this is a sealed AGM battery and does not require water top-ups. However, it should be kept properly charged, especially during periods of inactivity.