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  3. OPTIMA RED6V

OPTIMA RED6V Battery Volt 50-65

fits model: 356s. make: Porsche.

Red6v Optima Porsche Battery - 6 Volt All 356s 50-65

( Brand: Optima ), ( Manufacturer Part Number: RED6V ), ( Part Type: Battery )

Review OPTIMA Porsche Battery Volt All 50-65 fits 356S

Introducing the Optima RedTop PO4-0065 12-Volt, 55Ah High PerformanceAGM Battery, specifically designed for Porsche 356 models with a voltage requirement of 12 volts. This premium automotive battery delivers unmatched power and reliability, making it an ideal choice for your classic Porsche 356S.

The RedTop battery is part of Optima's YellowTop line, which boasts an Absorbent Glass Mat (AGM) design. AGM technology provides numerous advantages over traditional flooded lead-acid batteries. The sealed design ensures that the battery is spill-proof and maintenance-free, making it perfect for applications where access to the battery is limited. Additionally, the AGM design enables the battery to deliver a stronger, more consistent power output, which is essential for modern accessory loads and starting systems.

The RedTop battery offers a capacity of 55Ah (Ampere-hours), which translates to an impressive power output for its size. It can deliver 1000 CCA (Cold Cranking Amps) at 0 F (-18 C) and 1350 CCA at 32 F (0 C), ensuring quick and reliable starting even in cold weather conditions. This level of power is crucial for classic cars like the Porsche 356, which often come with high-compression engines that require a strong starting battery.

One of the most significant advantages of the RedTop battery is its fast recharging ability. It can be fully recharged in just 4-6 hours, which is significantly faster than many other lead-acid batteries. This quick recharge time is especially beneficial for classic car enthusiasts who may not use their vehicles daily.

The RedTop battery is also known for its long service life. It features Optima's SpiralCell Technology, which offers increased power output, longer cycle life, and greater resistance to deep discharge and vibration. The battery is also resistant to sulfation, a common issue in lead-acid batteries that can significantly reduce their performance over time.

The Optima RedTop PO4-0065 12-Volt, 55Ah High Performance AGM Battery is not only powerful and reliable but also compact and lightweight. It measures 10.2 inches long, 6.9 inches wide, and 8.1 inches tall, making it a perfect fit for the limited space in classic cars like the Porsche 356. Weighing only 33.8 lbs (15.3 kg), it's also easier to install and transport compared to traditional lead-acid batteries.

In summary, the Optima RedTop PO4-0065 12-Volt, 55Ah High Performance AGM Battery is an excellent choice for Porsche 356 owners seeking a powerful, reliable, and maintenance-free battery for their classic vehicle. Its fast recharge time, long service life, and compact size make it an essential upgrade for any Porsche enthusiast.

The Optima RedTop Porsche battery (Model Number: 35FZ-PCA) is a popular choice for vehicles that require high cranking power, including classic Porsche models like the 356S. Here are some pros and cons to help you make an informed decision about purchasing this battery.

Pros:

1. High Cranking Power: The Optima RedTop battery delivers a high cranking ampere (CA) of 550, making it suitable for vehicles with large engines or high electrical demands.

2. Deep Cycle Capability: While primarily designed for starting, the RedTop battery also offers deep cycle capability, allowing it to provide power to auxiliary systems when the engine is off.

3. Vibration Resistant: The battery's spiralcell technology and robust construction make it resistant to the vibrations commonly experienced in classic cars, ensuring a longer lifespan.

4. Maintenance-Free: The sealed design of the Optima RedTop battery eliminates the need for regular maintenance, making it a convenient option for those who prefer a low-maintenance solution.

5. Fast Recharge: The battery can be fully charged in as little as 4 hours, making it a practical choice for those who frequently drive their classic Porsche.

Cons:

1. Price: The Optima RedTop battery is more expensive compared to conventional lead-acid batteries, making it a higher investment for those on a budget.

2. Size and Weight: The battery is slightly larger and heavier than a standard lead-acid battery, which may require modifications to the battery tray or mounting brackets in some vehicles.

3. Limited Deep Cycle Capability: Although the RedTop battery offers some deep cycle capability, it is primarily designed for starting, and its performance may not meet the demands of those who frequently use their classic Porsche for off-grid applications or heavy electrical loads.

In conclusion, the Optima RedTop Porsche battery (Model Number: 35FZ-PCA) is a high-performance, reliable, and convenient option for those who require a battery with exceptional cranking power and vibration resistance. Its maintenance-free design, fast recharge, and deep cycle capability add to its appeal. However, its higher price point, larger size, and limited deep cycle performance may be drawbacks for some buyers. Ultimately, if you are looking for a battery that can handle the starting demands of your classic Porsche 356S and offer some flexibility for auxiliary power, the Optima RedTop battery is a solid choice.

Details:

OPTIMA Batteries represent the ultimate in performance and quality. In starting and deep-cycle applications, OPTIMA provides longer life withstands the extremes from daily drive more. Fits 1950-1954 Porsche 356 ;1955-1959 356A ;1960-1963 356B ;1964-1965 356C. With patented Spiral cell AGM Technology and unique six-pack design, OPTIMA batteries offer advanced performance for strong, clean power that outperforms conventional.

This 6V Red Top battery is spill resistant and maintenance free.

specifications batetecha:

  • for models: 356s
  • for makes: Porsche
  • brand: Optima
  • mpn: Red6v
  • part type: Battery

seller batetecha:

  • # reviews: 19068
  • city: Los Angeles, California
  • rating: 99.6%

offer batetecha:

  • started: November 27, 2025
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 3

general batetecha:

  • condition: New
  • Automotive Tools Supplies > Battery Testers Chargers > Other Battery Equipment

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  • time: 30 Days
  • policy: Returns Accepted
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  • carrier: FedEx
  • class: Standard
  • type: Calculated
  • transit: 5-8 Days
  • cost: $31.73
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for models: 356s, for makes: porsche, part type: battery,
category: auto parts > tools supplies > battery testers chargers > battery equipment, sku: 11785459133537673,
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