Odyssey ODP-AGM31M 12V 100Ah Marine & Leisure Battery, 2 Years Warranty

Marine and leisure applications demand a battery capable of withstanding repeated deep discharge cycles, sustained auxiliary loads, and the vibration inherent to on-water and off-grid environments. The Odyssey ODP-AGM31M is a 12V 100Ah AGM battery engineered to meet these exacting requirements, combining high cranking performance with genuine deep-cycle capability in a single unit.

The ODP-AGM31M is built on Odyssey's AGM2 Thin Plate Pure Lead (TPPL) technology. Pure lead plates are manufactured to extremely fine tolerances, allowing a greater number of plates to be accommodated within the cell. More plates increase the active surface area, which in turn raises both power output and charge acceptance. The result is a battery that delivers 925 CCA (EN) whilst also supporting the sustained discharge demands of onboard electronics, lighting, and auxiliary systems.

The battery measures 330mm (L) × 172mm (W) × 240mm (H) including terminals, and weighs 29kg. It is supplied under cross-reference code 31M-925. Terminal configuration and polarity should be confirmed against the product label prior to installation. The AGM2 TPPL construction supports start-stop system compatibility; verify applicability with the product label. No MCA, Wh, or NCC classification data is published for this model." A smaller variant is available within the same Odyssey Marine range: ODP-AGM27M (PID000199709). "The ODP-AGM31M is covered by a 2-year manufacturer warranty, providing assurance of consistent performance and build quality throughout the stated service period.

Standard delivery: 1–3 working days within UK mainland. 30-day returns.

Welcome to AGM2 TPPL - A new generation of battery for modern power demands. ODYSSEY® AGM2 Thin Plate Pure Lead (TPPL) batteries feature pure lead plates that are extremely thin, so more of them fit into the battery. More plates mean more power – ODYSSEY AGM2 TPPL batteries deliver twice the power and three times the service life of any other conventional battery, outperforming standard AGM or SLI (flooded) batteries in terms of power density, fast-charge acceptance, shelf life, durability and most important – value for your money. Twice the power and three times the life of any other conventional battery. AGM2 INSIDE Super High-Grade Materials + Refined Electro-Chemistry + TPPL = 2X the power and 3X the life. MASSIVE STARTING POWER Engine cranking pulses up to 2700 amps for 5 seconds. EXTENDED CYCLE LIFE Up to 900 charge-discharge cycles at 50% DOD. VIBRATION RESISTANT Protection from high impact shocks and vibration. WIDE TEMPERATURE TOLERANCE -40°C to +80°C. ONGER LIFE 8- to 12-year design life and 3- to 10-year service life compared to conventional lead acid batteries. VIRTUALLY MAINTENANCE-FREE Sealed ODYSSEY AGM2 TPPL batteries never need water.

• Backed by a 2 Years Warranty-year warranty for dependable service life and reliable performance under everyday driving conditions.
• Product Group: 3600, ODYSSEY BATTERY, engineered to deliver consistent starting power and steady performance in demanding automotive applications.
• Engineered as a No 12.0 battery, ensuring consistent current flow, strong cranking power, and stable voltage delivery.
• Manufactured by Odyssey, a trusted brand delivering reliable automotive power and longevity .
• Weighs 19.0 kg (41.9 lb), balancing high capacity with manageable handling for easy fitting and routine maintenance.
• OEM-style design ensures perfect terminal alignment, secure fitment, and support for both standard and start-stop vehicle systems.

Engineered for modern passenger vehicles, providing reliable starting power, voltage stability, and long-term durability to support daily commuting and standard automotive electrical demands.

• Restores dependable starting for vehicles that require consistent, everyday performance in regular driving conditions.
• Suited to No battery applications, delivering steady operation for vehicles with start-stop or accessory-heavy systems.
• Supports stable electrical output for ignition, lighting, infotainment, and critical onboard electronics in all environments.
• Performs reliably across short commutes and longer journeys where consistent restarts and electrical stability are essential.

PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.