Coleman Power Chill Iceless 12-Volt Cooler 5644 User Guide
Quick guide for the Coleman Power Chill Iceless 12-Volt Cooler (Model 5644). Includes operating instructions, power requirements, maintenance, and troubleshooting steps.
Table of contents
Quick guide from the manual
The Coleman Power Chill Iceless 12-Volt Cooler is designed to cool items to 38°F–42°F below the ambient temperature. It operates on 12V DC power. Important: Do not use ice in this cooler, as melting water can damage the fan motor or create frost buildup on the internal aluminum fins.
Operating Instructions
The cooler can be operated in either a horizontal or vertical position. If used vertically, ensure the cooling vent is at the top and never covered.
Lid Reversal
The lid can be removed and reinstalled to open in the opposite direction:
- Place the cooler on its back.
- Open the lid until it hits the built-in stops.
- Open further until it pops out of the case.
- Switch the latch plate and cover plate on the liner to match the new opening direction.
- Rotate the lid, replace it, and push down near the hinge pins until they engage.
Power Sources
The cooler requires 9.5 to 14.4 Volts DC. It can be connected to:

- A vehicle cigarette lighter receptacle (engine running).
- A 12-Volt battery charger (6-10 Amp automatic or 6 Amp non-automatic).
- A Coleman Power Supply (Model 2000000251) connected to a 120V wall socket.
Note: If the vehicle engine is not running, do not operate the cooler for more than 4 hours to avoid draining the battery.
Cleaning and Maintenance
Always unplug the cooler before cleaning or servicing.
- General Cleaning: Use a damp sponge with a small amount of dishwashing solution. Towel dry the interior.
- Odors: Leave the lid open for several hours after use to prevent odors.
- Defrosting: If cooling capability diminishes or ice builds up on internal fins:
- Remove all items.
- Turn off the cooler.
- Place in a horizontal position with the lid open.
- Allow to defrost completely, then sponge out all water.
- Fan Maintenance: At least once a year, remove the cooling vent cover and brush lint/dirt from the fan blades and outside heat sink using a soft-bristled brush.
Troubleshooting
If the fan does not rotate:
- Ensure the power cord is fully inserted.
- Check the fuse in the power cord (Bussman #MDL-7-R). If burned out, replace with the same type.
- If using an optional power supply, test the cooler in a vehicle to rule out a faulty power supply.
- Check the vehicle's cigarette lighter fuse.
Technical Specifications
- Capacity: 40 U.S. Quarts (37.85 liters).
- Power Requirements: 9.5 to 14.4 Volts DC, 4 Amperes @ 12 Volts DC Nominal.
- Cooling Performance: 38°F to 42°F below ambient temperature.
- Fuse: Bussman #MDL-7-R.
Manufacturer information
The Coleman Company, Inc.
Practical help
Common problems
Check power cord connection, check fuse (Bussman #MDL-7-R), or test in a vehicle if using an optional power supply.
If using an optional power supply, test the cooler in a vehicle to determine if the power supply is faulty.
Defrost the cooler by turning it off and leaving the lid open in a horizontal position until completely thawed.
Before use
- Ensure power source is 9.5-14.4V DC.
- Pre-chill items in a home refrigerator for faster cooling.
- Do not use ice in the cooler.
- Ensure the cooling vent is not covered.
- If using in a vehicle, ensure the engine is running or limit use to 4 hours.
Specs in practice
- Cooling Performance
- 38°F to 42°F below ambient temperature
Images and diagrams
- Figure 1 illustrates the connection of the cooler to a 12V battery charger.
Model compatibility
- Requires 12V DC power source.
- Optional 120V AC adapter (Item 2000000251) available for home use.
- Optional battery clips (Item 5999-012) available for direct battery connection.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.