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Optima 34M BlueTop Starting Battery

Item # 449528
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Additional Information:
  • Additional freight charge of $10.00 applies.
  • This item can only be shipped to U.S. addresses.


  • SpiralCell techonology is safer & more efficient

  • 15x more vibration resistance

  • Recharge faster and up to 3x as many times

  • Won't leak at any angle

  • Group 34

Product Summary 

When compared to traditional marine batteries, Optima's Blue Top batteries run longer, recharge faster and up to 3x more, and provide more than 15x the vibration resistance. Ideal for those who need a sure-starting, strong cranking, maintenance free power source for their boat or RV. These high-performance, high-powered 12V batteries are designed with SpiralCell technology for superior vibration resistance and longer life. High-purity lead-tin alloy plates are wound with Absorbent Glass Mat Separators and tightly compressed into a cell tube that won't shed or break, even in severe conditions. There is no chance of leaking acid with a totally sealed battery like this. Lower internal resistance produces more efficient power output. Batteries are encased in polypropylene and use sulfuric acid as an electrolyte. Post Type: dual SAE & 5/16" Stainless Steel stud. Group: 34.

If you are replacing an Optima battery, this model (34M) is the same as batteries marked 8006-006, 9006-006, 27935, 34M-1050, BLUES34, SC34M, BLUES34, or N9934MBLUE. Weighs 38.4 lbs. 10"L x 6-7/8"W x 7-13/16"H.

Model 34M
BCI Group 34
Cold Cranking Amps @ 0F 800
Cranking Amps @ 32F 1000
Reserve Capacity 100 min.
Capacity (C/20 rate) 50 Ah
Internal Resistance 0.003 ohms
Dimensions 10" x 6-7/8" x 7-13/16"
Weight 38.4 lbs.