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TM29 Group DC31 Deep Cycle Marine Battery Wet Cell Maintenance Free, 700cca 925mca 223rc
TM29 Group DC31 Deep Cycle Marine Battery Wet Cell Maintenance Free, 700cca 925mca 223rc
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TM29
Premium Group 31 | TM29 Deep Cycle Marine Battery | 110AH
Power your passion with the ultimate heavy-duty marine battery. The Group 31 (TM29) is the largest of the standard marine sizes, engineered specifically for high-demand applications. Whether you are running a multi-day fishing tournament, a large trolling motor, or an extensive marine electronics suite, this battery delivers the massive 110AH capacity and 190-minute reserve you need to stay out longer.
Designed as a Maintenance-Free Wet Cell, it combines the heavy-duty cycling capabilities of a deep-cycle battery with enough "kick" (900 Cranking Amps) to reliably start most large marine engines.
Common Replacement For:
This battery is a direct performance replacement for high-capacity Group 31 and TM29 batteries, including:
Interstate Batteries: SRM-31, 31M-EHD, 31-MHD
Deka / East Penn: 31M7, DC31DT, Marine Master 31
EverStart (Walmart): 31MS, Maxx Marine Group 31
Duracell (Batteries Plus): SLI31MDC, 31DTMAGM (Flooded equivalent)
Exide / Nautilus: NC-31, E31MDP
Duralast (AutoZone): 31-DL, 31M-AGM
NAPA: 8231, 8302
Super Start (O'Reilly): 31MS, 31DCM
ACDelco: M31MF, Voyager M31
Performance Specifications
Model/Reference: Group M31 / TM29
Voltage: 12V
Capacity: 110AH (Amp Hours)
Cold Cranking Amps (CCA): 720
Marine Cranking Amps (CA/MCA): 900
Reserve Capacity (RC): 190 Minutes
Technology: Maintenance-Free Wet Cell (Lead Acid)
Warranty: 12-Month Replacement
Dimensions & Fitment
The Group 31 is a large-format battery. Ensure your battery box or tray is designed for this footprint:
Imperial: 12.99in (L) x 6.77in (W) x 8.2in (H)
Metric: 330mm (L) x 172mm (W) x 208mm (H)
The Powerhouse Choice
Why choose the M31? It offers the highest Reserve Capacity in our standard marine lineup. With 190 minutes of RC, it provides nearly 35% more runtime than a Group 27 battery. It is the go-to choice for:
24V or 36V Trolling motor systems (when used in series).
Sailboats with significant "house" power needs.
Off-grid marine power where solar charging is utilized.
Hardcore Batteries. Wholesale Prices.
Commercial Grade Marine Batteries
Highlights
Introducing the marine battery line by Republic Battery - a family owned and operated business since 1946. Our marine batteries are designed to provide reliable and long-lasting power for all your marine needs.
With decades of experience, we have perfected the art of sourcing batteries that withstand the harsh marine environment. Our marine batteries are made with high-quality materials and are rigorously tested to ensure they can handle the demands of marine use.
Our marine battery line features a range of battery sizes and types, including starting batteries, dual-purpose batteries, and deep cycle batteries. Whether you need a battery for your small fishing boat or a large yacht, we have the perfect battery to meet your needs.
Our marine batteries are designed to provide excellent performance and reliability, even in the most challenging conditions. Our AGM batteries are built to withstand vibration, shock, and extreme temperatures, making them the ideal choice for all your marine needs.
At Republic Battery, we take pride in providing our customers with the highest quality batteries and exceptional customer service. Our marine battery line is backed by a 1 year warranty, so you can have peace of mind knowing that your investment is protected.
Choose Republic Battery for all your marine battery needs and experience the reliability and performance that comes with decades of experience in the battery industry.
Warranty Options
At Republic Battery, we stand behind the quality of our products and are committed to providing our customers with the highest level of satisfaction. We are proud to offer a 1-year warranty on our line of marine batteries.
Our warranty covers any defects in materials or workmanship that may occur during normal use of the battery. If you experience any issues with your marine battery within the first year of purchase, we will replace it free of charge.
The warranty process is extremely simple. If you are having an issue with your battery, bring it by our centrally located store front at 6130 Long Drive, Houston, TX 77087 for a diagnostic check. If you're battery is bad, we will swap it for you at no charge if it is within the warranty period.
Please note that our warranty does not cover damage caused by misuse, abuse, or neglect of the battery. It also does not cover normal wear and tear, or any damage caused by accidents or natural disasters.
At Republic Battery, we take pride in providing our customers with high-quality marine batteries that are built to last. Our warranty is a testament to our commitment to quality and customer satisfaction, and we are confident that you will be completely satisfied with your purchase.
Availability
In-store pick up available at Republic Battery, 6130 Long Drive Houston, TX 77087. Wet cell batteries are not eligible for shipping, but may be eligible for local delivery.
Online inventory may not reflect actual in-store availability, so if a product shows to be low or out of stock you can call us at 713-645-2141 or email sales@republicbattery.com for more information.
A 4th Generation Family Owned and Operated Establishment
- Est. by Charlie Koupa, 1946-