How long can a good cooler retain ice for?

It depends on the size, insulation, and seal of the cooler. The Mammoth Ranger 45 Cooler, for example, is engineered for exceptional ice retention, capable of keeping ice for 6 to 8 days. This performance is achieved when the cooler is properly pre-chilled and packed according to best practices.

What does 'rotomolded construction' mean for a cooler?

Rotomolded construction (rotational molding) is a manufacturing process that creates extremely durable, seamless, and uniformly thick cooler walls. For the Mammoth Ranger 45, this means it's incredibly tough, impact-resistant, and built to withstand rugged outdoor conditions and extreme use.

What is the capacity of the Mammoth Ranger 45 Cooler?

The Mammoth Ranger 45 Cooler has a 45-quart internal capacity. It can hold approximately 45 to 48 standard 12oz cans, depending on the amount of ice used and how the contents are arranged.

Is the Ranger 45 Cooler suitable for activities like fishing or boating?

Yes, the Ranger 45 is an excellent choice for fishing, boating, and other marine activities. Its heavy-duty rotomolded construction is designed to withstand harsh environments, and it features non-skid rubber feet to help keep it stable on deck. The extended ice retention is also ideal for keeping your catch, food, or drinks cold during long, hot days on the water.

What kind of warranty comes with the Mammoth Ranger 45 Cooler?

The Mammoth Ranger 45 Cooler is backed by Mammoth's lifetime warranty. This generally covers defects in materials and workmanship for the original purchaser. For specific terms, conditions, and claim procedures, it's always recommended to consult the official warranty information provided by Mammoth Coolers.

Mammoth Ranger 45 Cooler – Heavy-Duty Cooling for Rugged Adventures

MEET THE Ranger 45

BUilt to Last

Double-walled Rotomolded Construction giving you the optimal temperature retention.

Strong Rubber Lid Latches

Freezer Grade Lid Gasket

Built-in Stainless Steel Hinge System

Heavy Flow Drain System

Thick Rubber Non-Skid Feet

Ice Retention:
Up To 7+ Days

White Ranger 45 front view open with ice

The Mammoth Ranger 45 Cooler is engineered for outdoor adventurers who need maximum performance in demanding environments. With a 45-quart capacity, it holds up to 48 standard 12oz cans, and keeps your food and drinks cold for up to 8 days when properly packed. Its tough, double-walled rotomolded construction, freezer-grade gasket, and thick foam insulation make it a solid haven against the heat. Whether you’re heading out for a weekend camping trip or tackling rugged terrain on a hunting or fishing expedition, the Ranger 45 offers reliable durability and ice retention you can count on. Backed by Mammoth’s lifetime warranty, this cooler is built to handle whatever the wild throws your way.

Key Features & Details

45-quart capacity (fits 45–48 standard 12oz cans)
Heavy-duty rotomolded construction with freezer-grade gasket
Thick foam insulation for exceptional ice retention
Non-skid rubber feet to keep your cooler where you put it
Exterior: 17.25” x 23” x 16.5″ | Interior: 12.5” x 17.5” x 11.5″
Weight: 23 lbs.
Ice retention: 6–8 days when properly filled
Lifetime warranty for peace of mind

FIND THAT PERFECT FIT

white ranger 45 front and side view with dimensions

HOW MANY CAN YOU FIT?

SEE WHAT A MAMMOTH CAN HOLD

Pick

Your

Size

FITS UP TO

48 CANS

FITS UP TO

45 CANS

GREAT FOR

Fishing Boat – Day at the Beach – Bird Hunting – Road Trip – Camping

Extreme Durability and Ice Retention

The Ranger 45 stands out for its superior insulation and rugged design, making it a top choice for serious adventurers. With 6–8 days of ice retention and a rock-solid build, it’s ready for extended trips in extreme environments. Whether you’re deep in the backcountry or out at sea, the Ranger 45 is built to keep your food and drinks cold and secure, no matter how rough the journey gets.