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The picnic ends when the food gets warm. The best 12v cooler bag under 100 is the soft-sided bag that keeps drinks cold from the car outlet without hauling a hard cooler. We compared four 12v cooler bags from Ivation, OLYDON and RoadPro on what their listings state: capacity, temperature figures and insulation. The Ivation 18L leads with stated thermoelectric cooling, while the OLYDON is the only heated bag here. Both state 12V power, so either plugs into the car outlet; the difference is cold against heat with capacity. The smaller Ivation and the RoadPro give little to compare, so they sit at the bottom of the ranking.
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Quick picks
Best Overall Ivation 18L Cooler Bag: 18L with stated thermoelectric cooling. Check price on Amazon
Best Heated OLYDON Heated Bag: 60.75L with 140F plate stated Check price on Amazon
Best Compact Ivation 15L Cooler Bag: 15L thermoelectric stated Check price on Amazon
Brand Pick RoadPro RP5370: 12V soft sided from RoadPro Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | Ivation 18L Cooler Bag | 9.5/10 | Buy on Amazon |
| 2 | RoadPro RP5370 Cooler Bag | 9.5/10 | Buy on Amazon |
| 3 | OLYDON Heated Bag | 9.4/10 | Buy on Amazon |
| 4 | Ivation 15L Cooler Bag | 9.3/10 | Buy on Amazon |

Ivation 18L Cooler Bag
An 18L thermoelectric cooler bag with 12V DC power, cooling to 15 degrees below ambient.
Pros
- 18 liters with 4.7 gallons stated
- 15 degrees below ambient cooling stated
- Folding walls collapse for storage.
- 20+ can load with shoulder strap stated
Cons
- 5.3 pounds stated weight
- Brushless fan motor draws continuous power
- Letter Print pattern
- No heating mode stated
Detailed Review
The listing states an Ivation portable electric cooler bag with 18 liters (4.7 gallons) of thermoelectric cooling to 15 degrees below the ambient temperature, with no liquid refrigerant. It lists a brushless fan motor, heavy-duty polyester exterior with polyurethane foam insulation, a 20+ can load capacity, a DC adapter for vehicle 12V outlets, discreet cord storage, a front zipper pocket, a removable shoulder strap, folding walls and 12.5 by 14 by 12.5 inches at 5.3 pounds. The listing also notes the bag is freon-free, eco-friendly and quiet, with flexible folding walls that collapse when not in use. Recommended uses cover camping, picnics, road trips, beach days and RVs, and the listing frames it as a gift for truckers, boaters, fishermen and van life couples.
Who it's for: road trippers who want stated thermoelectric cooling . Who should skip it: buyers who want heating too.
Its Solar Score of 9.5/10 comes from performance 28/35, build 21/25, value 21/25, safety 0/10 and warranty 0/5: 70 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 18 L, 4.7 gal |
|---|---|
| Cooling | 15 deg below ambient |
| Power | DC 12 V |
| Size | 12.5 x 14 x 12.5 in |
Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

RoadPro RP5370 Cooler Bag
A 15L soft-sided bag cooling 35F below ambient with water resistance stated.
Pros
- 35F below ambient stated
- Insulation holds cold unplugged stated
- Water resistance stated
- Collapses for storage stated
Cons
- 15L, smaller than the 26QT picks
- No certification stated
- Half-case can capacity
- 35F below is the shallowest claim here
Detailed Review
The listing states a 15-liter soft-sided 12V cooler bag with thermoelectric cooling to 35 degrees below ambient temperature, heavy-duty insulation that keeps contents cool after unplugging, a half-case of 12-ounce cans, water resistance in the spec table, dual carry handles, an adjustable shoulder strap, collapsible storage, a 12.24 by 14 by 10.25 inch size, polyester material and a 1 Year Limited warranty.
Who it's for: tailgaters and boaters who want insulation that works unplugged. Who should skip it: anyone who needs 26QT of capacity.
Its Solar Score of 9.5/10 comes from performance 24/35, build 20/25, value 20/25, safety 4/10 and warranty 2/5: 70 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 15 liters |
|---|---|
| Cooling | 35F below ambient |
| Shell | polyester, water resistant |
| Power | 12V |
Figures as published on the retailer listing, collected 21 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. water resistance stated in spec table, so safety scores 4 of 10. 1 Year Limited warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

OLYDON Heated Bag
A 60.75L heated delivery bag with a 12V cigarette-lighter port, a 140F heating plate and stated overheat protection.
Pros
- 60.75 liters stated
- 140F plate with 104F internal stated
- Overheat protection stated
- Cold-storage mode with plate removed stated
Cons
- Bullets say 17.1 in against 17.7 in spec; trust the bullets
- No warranty term is stated
- Single compartment stated
- 12V only, no dual voltage stated
Detailed Review
The listing states an OLYDON insulated heated delivery bag with a 12-volt cigarette-lighter power port, a heating plate up to 140F and an internal temperature maintained at around 104F, with built-in overheat protection. It lists 60.75 liters, a water resistant aluminum lining, double-layer insulation, polyester construction and a cold-storage mode when the heating back plate is removed. The bullets size it at 17.1 by 17.1 by 11.8 inches against 17.7 inches in the spec table; trust the bullets. The bag also states a zipper pocket and an adjustable padded handle, with strong handles and reliable zippers built for daily professional use. The listing frames it as a catering bag for food delivery, not just camping. No warranty term is stated.
Who it's for: buyers who want hot food on the road with cold-storage backup. Who should skip it: buyers who want a stated warranty.
Its Solar Score of 9.4/10 comes from performance 26/35, build 20/25, value 21/25, safety 0/10 and warranty 0/5: 67 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 60.75 L |
|---|---|
| Heating | 140 F plate, 104 F internal |
| Power | 12 V |
| Lining | Water resistant aluminum |
Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Pros
- 4.4 pounds, the lightest pick here
- Folding walls collapse for storage when empty
- Removable shoulder strap and front storage pocket
- No liquid refrigerant, brushless fan motor stated
Cons
- No warranty term is stated
- Cools only 15 degrees below ambient, the weakest figure here
- No safety certification is stated on the listing
- 12V DC only, no AC cord in the box
Detailed Review
The listing states a 15L soft-sided thermoelectric cooler bag with Peltier cooling that cools 15 degrees below the ambient temperature, a brushless fan motor, polyurethane foam insulation, a 20-plus can load capacity, a removable shoulder strap, carry handles, a front pocket with zipper closure, folding walls that collapse for storage, and a DC adapter for 12V outlets, at 4.4 pounds. The listing states no warranty term and no safety certification.
Who it's for: drivers who want the lightest bag that stows flat when empty. Who should skip it: anyone who needs a stated warranty or serious cold.
Its Solar Score of 9.3/10 comes from performance 23/35, build 19/25, value 20/25, safety 0/10 and warranty 0/5: 62 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Capacity | 15L |
|---|---|
| Cooling | 15F below ambient, thermoelectric |
| Power | 12V DC only |
| Weight | 4.4 lb |
Figures as published on the retailer listing, collected 21 October 2026. Performance figures are manufacturer rated.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
Numbers side by side
| Cooler Bag | Solar Score | Capacity | Power | Temp Stated | Amazon |
|---|---|---|---|---|---|
| Ivation 18L Cooler Bag | 9.5/10 | 18 L | DC 12V | 15 deg below ambient | View on Amazon |
| OLYDON Heated Bag | 9.4/10 | 60.75 L | 12V | Up to 140F | View on Amazon |
| Ivation 15L Cooler Bag | 9.5/10 | 15 L | 12V DC | Not stated | View on Amazon |
| RoadPro RP5370 | 9.5/10 | Not stated | 12V | Not stated |
Specifications are manufacturer rated as listed, collected 22 October 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. For cooler bags, safety means the insulation and protections the listing actually states; the OLYDON states overheat protection and water resistant lining, and the Ivation states polyurethane foam insulation. The OLYDON scores on capacity and heating figures, and the two thin listings score on little more than their stated power and size. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Ivation 18L Cooler Bag | 9.5 | 28 | 21 | 21 | 0 | 0 |
| OLYDON Heated Bag | 9.4 | 26 | 20 | 21 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
The two leaders
The Ivation 18L and the OLYDON are the only two listings with enough stated figures to compare deeply. The Ivation 18L states 18 liters, a 20+ can load, 15 degrees of cooling below ambient, a 12V DC adapter, cord storage, a front pocket, a removable shoulder strap, folding walls and polyurethane foam insulation. The OLYDON states 60.75 liters, a 140F heating plate, 104F internal maintenance, overheat protection, a water resistant aluminum lining and a cigarette-lighter port. They lead for different reasons: cold, or heat with capacity.
How to choose the best 12v cooler bag under 100
Cooling or heating
The Ivation 18L states thermoelectric cooling to 15 degrees below the ambient temperature with no liquid refrigerant, using a brushless fan motor. The OLYDON states a heating plate up to 140F with the internal temperature maintained at around 104F, and a cold-storage mode with the heating plate removed. The smaller Ivation 15L and the RoadPro state no temperature figures. Decide whether you need cold, heat or both. The Ivation is the only one that states a cooling degree figure; the OLYDON is the only one that states a heating plate figure. The smaller Ivation 15L names thermoelectric in its title but gives no cooling figure, and the RoadPro gives no temperature line at all.
Capacity
| Cooler Bag | Capacity stated | Temperature stated |
|---|---|---|
| OLYDON Heated Bag | 60.75 liters | Up to 140F plate |
| Ivation 18L Cooler Bag | 18 liters | 15 degrees below ambient |
| Ivation 15L Cooler Bag | 15 liters | Not stated |
| RoadPro RP5370 | Not stated | Not stated |
The OLYDON states 60.75 liters and holds multiple food containers at once. The Ivation 18L states 18 liters (4.7 gallons) with a 20+ can load. The Ivation 15L states 15 liters. The RoadPro states no capacity figure. Match the bag to the load you carry. For large food transport, the OLYDON states 60.75 liters and multiple food containers at once; for a day trip, the Ivation 18L states 18 liters and 20+ cans. The Ivation 18L also states a 20+ can load and a 4.7 gallon figure, while the RoadPro states neither a liter nor a can figure.
Power and portability
All four state 12V power. The OLYDON uses a 12-volt cigarette-lighter power port. The Ivation 18L states a DC adapter for cars, trucks, RVs and boats, and its folding walls collapse for convenient storage when the trip is over. The Ivation 18L includes a DC adapter for the vehicle 12V outlet and lists discreet cord storage, a front zipper pocket, a removable shoulder strap and folding walls that collapse for storage. The 18L bag is listed at 5.3 pounds. The Ivation 15L and RoadPro give no weight figure, so compare portability on the shoulder straps and folding walls instead.
Insulation
The OLYDON states a water resistant aluminum lining, double-layer insulation and overheat protection. The Ivation 18L states thick polyurethane foam insulation with a heavy-duty polyester exterior. None of the four states a warranty term. For insulation, the OLYDON names its aluminum lining while the Ivation names polyurethane foam.
Sizing Notes
- Match capacity: 60.75 liters on the OLYDON, 18 liters on the Ivation, and 15 liters on the smaller Ivation.
- Check temperature: 15 degrees below ambient on the Ivation, and a 140F plate with 104F internal on the OLYDON.
- Confirm 12V power: all four state 12V; the OLYDON uses a cigarette-lighter port.
- Note the protections: overheat protection stated on the OLYDON.
- Match the cooling to the trip: the Ivation 18L states 15 degrees below ambient; the OLYDON states heating to 140F.
FAQ: power away from the grid
How cold does the Ivation 18L get?
15 degrees below the ambient temperature, stated as its thermoelectric cooling figure.
Which bag here heats food?
The OLYDON. Its heating plate reaches up to 140F while the internal temperature is maintained at around 104F.
Do any state a warranty?
None of the four states a warranty term.
What is the OLYDON capacity?
60.75 liters in the spec table, sized at 17.1 by 17.1 by 11.8 inches in the bullets.
What does the RoadPro state?
Almost nothing beyond the title: a 12V soft sided cooler bag. It has no stated capacity, temperature figure or warranty.
Can the OLYDON also keep things cold?
Yes. Remove the heating back plate and it works as an insulated cold-storage bag.
Related solar guides
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More picks: an AooDen 25 liter electric cooler bag with cooling of 30-35 degrees below ambient, warming up to 140-145F, 12/24V DC and a 12-month warranty stated.





