Customer Ratings & Reviews

Since buying this Anker so ever frost two battery, I never have to worry about my cooler running out of battery. It charges up pretty quickly with my USB-C cable, and I like how it has four indicator lights so you can know approximately how much it is charged. You can also monitor the charging percentage on the Anker app. Another plus is that whenever I bring it out, people are pretty impressed by it and by the fact that I don’t need ice to keep the contents in the cooler cold. Definitely a conversation point at any function.

I picked up this extra battery to ensure the cooler keeps running uninterrupted during long days out. The 288Wh capacity delivers exactly as promised, maintaining a stable temperature without draining the vehicle's battery. The multiple charging inputs (AC, car, solar) make it incredibly versatile for off-grid use, whether parked at a lakefront rental or during a long drive. It functions exactly as I've come to expect from Anker products—dependable, well-engineered, and practically foolproof.

Great battery long lasting and charging is good, worked well on our 2 week vacation to Tennessee

Works as intended and can be used outside of the cooler its designed for.

Extended cooler life i can usually get two days with cooler

Can’t believe how long the power bank last almost 24 hours on a single charge sitting out side in 90 degree weather.

I love being able to use the battery to charge my phone. Being able to charge the battery without it being connected to the Everfrost 2 cooler is very convenient. The only negative thing i could say is it’s pricey, but worth it.

I am glad I purchased a 2nd battery, you never know when you will need to run off of battery power. It is supposed to last 4.3 days.

Very good battery, well spent money. Keep my drinks cold and a battery back for my devices as well

Works great definitely would recommend for cooler.

It works good but for me, my experience has been tuff with these batteries. Cause I cant charge it with a usb c. I forcefully have to charge it with the cooler. Not really reliable and efficient.

The battery worked as expected and I love the how long it lasts!

You need this if you plan on utilizing both sides of your fridge. Thank me later.

Battery died in a month product is garbage. Beware best buy return policy are not for the consumer

This item gets overheat at my first use then stop release power. i’m worried about it will burn, so i return it immediately.

Battery lasted maybe 8 hours from a full charge! .

Have not received the product not sure what to do it has caused us to not enjoy our vacation this is terrible