Skip to Main Content »

Security Seals

Welcome to Impact Battery!

Sealed AGM Marine Starting & Deep Cycle Batteries

Our premium selection of sealed lead acid (SLA) Marine Batteries include LifeLine, Drakon and Universal Power Group. We can ship sealed AGM batteries direct to your door or to any facility you are docking your boat at for service and installation. If you are unsure which size battery you should be purchasing consider using our marine battery selector to assist in your search. Impact Battery also has a large selection of waterproof, multi-bank boat chargers.

Yes.. Weego can even jump a motor boat! Buy One Now!

Starting Batteries vs. Deep Cycle Batteries

Typical Boat that uses Deep Cycle Batteries

On the outside there really is no difference in appearance besides maybe the terminal type. However, once you get past the raw materials of the plastic case, lead, AGM material, and acid there are some fundamental differences.

Deep cycle batteries used in bass boats and speed boats as well as other applications such as RV's and golf carts are designed to provide a constant current over an extended period of time. To maintain the ability to supply power over longer periods of time the plates are made thicker. This initiates the deep cycle nature and allows discharge of up to 80% of their capacity routinely. They still have the ability to provide a short but less powerful burst of power compared to a similarly sized car battery, but this is not their primary function and is more like a byproduct.

As the name suggests, marine starting batteries are designed to turn over an engine by providing a high rate of current over a very short time period. These batteries cannot handle continuous load deep discharge situations. They will leave you wanting and will die a premature death when used for applications other than starting an engine. To achieve the necessary burst of current (CCA) these batteries need to lower their internal resistance. Generally speaking, this is accomplished by using thinner lead plates.

Dual Purpose starting / deep cycle AGM batteries try to maximize the Cold Cranking Amps (CCA), Reserve Capacity (RC) and Cycle Life. Drakon, Optima Blue Tops and Odyssey batteries are the best in class for dual purpose specs. Drakon batteries, which use 99.99% pure lead and are considered an ultra-premium AGM marine battery, lead in all three categories making them the market leader in deep cycle and starting power ability. Order your marine AGM batteries online today!

16 Item(s)
  1. $145.95

    Group 22NF 12V 55Ah Marine Deep Cycle Battery by UPG
  2. 12V 200Ah Sealed Lead Acid Deep Cycle AGM Battery (Group 4D)
  3. Supervisory Control and Data Acquisition 8D AGM Battery
  4. This UB63800, L16 sized 6V 380Ah battery is used in Deep Cycle Solar, Standby, and Backup Power applications by Universal Power Group
  5. $19.95

    The GCP1 is a Plug-N-Play AC Port Plug that integrates with any on-board battery charger without the need to modify existing wiring.
  6. Group 31 12V 125Ah Deep Cycle Marine and RV Battery by LifeLine
  7. $269.95

    The OPTIMA D27M Blue Top battery has low internal resistance, provides efficient output and is made by Johnson Controls.
     
    • Cold Cranking Amps (CCA): 800
    • Dimensions (in): 12.19 x 6.81 x 8.75
    • Capacity Amp Hours: 66
    • Warranty: 3 Year
  8. $334.95

    We now stock the NorthStar brand who actually private labeled for Drakon. You can buy from either page to receive the NSB-AGM24M battery as they are identical inside. Sadly, the Drakon label has been discontinued.

     
    • Cold Cranking Amps (CCA): 840
    • Dimensions (in): 10.9 x 6.77 x 8.75
    • Capacity Amp Hours: 76
    • Warranty: 3 Year
  9. $185.95

    Group 24 12V 75Ah Marine Deep Cycle Battery by UPG
  10. 12 Volt 80 Amp Deep Cycle GPL-24T Battery by LifeLine
  11. $374.95

    Availability Note: NorthStar label will be sent

    The Drakon 40881 Battery is a pure lead ultra-premium sealed AGM product designed to excel at starting and deep cycling.
     
    • Cold Cranking Amps (CCA): 930
    • Dimensions (in): 12.4 x 6.77 x 8.74
    • Capacity Amp Hours: 91
    • Warranty: 3 Year
  12. $249.95

    Group 27 12V 90Ah Marine Deep Cycle Battery by UPG
  13. 12V 100Ah Deep Cycle Lead Acid Battery by LifeLine
  14. 12V 105Ah Deep Cycle Battery by LifeLine
  15. $209.95

    Out of stock

    12V 110Ah Marine deep cycle battery by UPG (Group 31)
  16. $39.95

    Fits standard Group 24 & 27 Size Batteries w/ External Battery Status Indicator and much more!
16 Item(s)