So, the battery life on the Ninja Blast Max cordless blender is pretty solid, which is great if you're looking for something portable. The manufacturer mentions that it has a rechargeable motor base with a battery life indicator, so you can easily tell when it needs to be charged again.

While they don't give an exact number of uses per charge, our research shows that it handles typical tasks like smoothies and frozen drinks quite well before needing a recharge. It’s designed to last for multiple uses, making it handy for on-the-go blending.

According to our research, it does a good job with ice and frozen ingredients, although thicker items might need a couple of extra blending cycles. The blender has a 22 oz. removable vessel and a leakproof lid, which makes it easy to take with you to work, the gym, or on trips.

It even has Auto-iQ Technology for optimal blending with just one button press.

Cleaning is straightforward for the most part—the 22 oz. vessel is dishwasher-safe, and everything is BPA-free. The only slight downside is that the blades need to be cleaned by hand, which might be a bit of a hassle compared to models where everything is dishwasher safe.

The main limitations we've found are that it can struggle with thicker recipes and might overheat if you use it non-stop without breaks. It's not the best for heavy-duty tasks like making nut butters or hot blending.

But for your everyday smoothies and light blending, it works great and is super convenient and reliable.

So, if you need a portable, efficient, and easy-to-clean blender for smoothies and frozen drinks, the Ninja Blast Max is definitely worth a look. Just keep in mind it's not really built for those tougher tasks.