10 Best Deep Cycle Battery For Winch 2026 in the United States

The Interstate Batteries 31M-AGM is a 12V dual-purpose battery designed for both starting engines and providing deep-cycle power, making it a solid choice for winch use on boats or RVs. With 100Ah capacity and 925 cold cranking amps (CCA), it delivers strong starting power as well as the ability to run accessories over time. Its pure lead AGM design promises a significantly longer cycle life—up to 2-3 times that of conventional batteries—which means it can handle repeated charging and discharging better, important for heavy or frequent winch use.

The battery is maintenance-free, sealed, and resistant to vibration and harsh conditions, which adds convenience and reliability. It weighs around 72 pounds and has a medium-large size (Group 31M), so it’s fairly heavy but typical for a high-capacity marine battery. Being an AGM battery, it costs more upfront than flooded types but provides better durability and less upkeep.

This battery is well suited for users needing dependable, long-lasting power for their winch with added flexibility for marine or RV use.

The Trojan T-105 Plus 6V deep cycle battery is a solid choice for powering winches, especially if you need reliable, long-lasting performance. Each battery has a high capacity of 225 Amp Hours, which means it can store a good amount of energy to handle heavy loads over time without quickly losing power. The 6-volt rating is typical for deep cycle setups, and using eight of these batteries together can provide the voltage and endurance needed for demanding winch operations. These batteries are known for their strong cycle life, which means they can be discharged and recharged many times before wearing out, making them cost-effective in the long run.

As flooded lead-acid batteries, they require regular maintenance like checking water levels to keep them performing well. They are quite heavy (about 65 pounds each) and relatively compact in size, so you’ll need to plan for proper installation space and secure mounting. Trojan batteries typically offer robust starting power and reliable reserve energy, important for occasional high bursts of demand when using a winch.

If you’re looking for dependable power with the ability to sustain repeated use, this battery pack is a dependable choice, provided you’re ready to handle the maintenance and weight aspects.

The Renogy Deep Cycle AGM Battery is a solid option for those needing reliable power in RVs, marine applications, or off-grid systems. With a substantial 200Ah capacity and a 12V output, it can effectively support various appliances and tools, particularly in outdoor settings. One of its standout features is the maintenance-free design, thanks to the absorbent Glass Mat technology, which prevents acid leakage and reduces upkeep efforts, making it convenient for users who prefer a 'set it and forget it' approach.

The battery offers excellent discharge performance, capable of delivering a maximum discharge current of 2000A, which is beneficial for high-demand applications. Additionally, its low self-discharge rate of 3% per month ensures that it retains charge longer when not in use, making it ideal for seasonal or occasional users.

This battery's weight of 127.9 pounds may be a drawback for some, as it can be cumbersome to handle and install, especially for those with limited strength. Furthermore, while it performs well in a range of temperatures, extreme cold settings below 32℉ can still impact its efficiency. Users should also be aware of the installation recommendations, as it should primarily be kept upright to avoid potential damage.