A:Answer Dear customer, thanks for your interest in our portable cooler.
To clarify, the 30L cooler is single-zone, while the 50L cooler is dual-zone. Dual-zone cooling keeps BBQ meat safe and frozen without turning drinks into a block of ice The 50L cooler has a larger refrigeration compartment, which is why its duration time is shorter compared to the 30L cooler. Specifically, the 50L cooler has a duration time of 27 hours, whereas the 30L cooler lasts for 40 hours.
As for which cooler is better, it depends on your specific needs. If you require a larger refrigeration space and the flexibility of dual zones, the 50L cooler would be the better choice. However, if a longer duration time is more important for your use, then the 30L cooler might be more suitable.
