After reviewing and comparing a good number of portable power systems, the Humless Sentinel is the one I look to as my first line of backup power and as an emergency power source. Here is some info which discusses a few of the key benefit of the Sentinel over other battery power packs.
Where can I buy the Humless Sentinel?
The main “plus” is what’s at the heart of the Sentinel, the Lithium Iron Phosphate (LiFePo4) battery. The battery in any powerpack system is the weakest link, which is why the battery chemistry chosen by Humless is so important. The LiFePO4 lithium battery has superior characteristics over the typical lead acid batteries used in most other power systems. Read more about the LiFePo battery.
The DC to AC power inverter the Sentinel uses is a another plus. The inverter is the electronic component that takes the stored power in the battery and converts it to the power we typically use in our homes. The Humless Sentinel uses a pure sine wave inverter which means it’s available power is much the same as what is provided from your home wall outlet. Other powerpacks use inverters that only approximate your home power in what’s called a modified sine wave. A pure sine wave works better with appliances/devices that have motors or need the “cleanest” power compared to that produced by a modified/square wave inverters that most other power packs use.
The Sentinel’s inverter outputs up to a 1000 watts of power and will run about 80-90% of most appliances/devices. The Sentinel’s battery will run at 1000 watts for about 35 minutes before it will need to be recharged at 100 watts for 6 hours. Read more about the Sentinel’s inverter.
The Sentinel’s battery is able to be charged from quite a few renewable power sources from solar power, a hand crank dynamo generator, and also from the AC power wall outlet in your home. It is very compact and portable at only 40 pounds. It can be taken and used anywhere due to it’s weight and size. It’s case is a full steel box which makes it quite durable. The input and outputs are fused with a thermal fuse so if they ever trip they will automatically reset without the need to replace the fuse. Read more about the Sentinel’s info.
With a solar panel added the Sentinel is a great fuel-less solar generator for surviving long term power outages. For those of us who have already experienced days without power, we know how useful having the Sentinel’s emergency power source is or would have been if we would have been smart enough to have one with us beforehand. Consider all the many things that we do on a daily basis that only require a small amount of electricity to accomplish, but would take quite a bit of time if we didn’t have access to power.
Having the Sentinel’s power source is imperative for emergency preparedness. Just think about it. You have bulk grains, but how are you going to grind them for flour? You’ve got your lights, but how are you going to power them? You have a TV or radio for communication but can’t plug them in. There are many thing that we take for granted but will rapidly come to our attention when the lights go out. This is why we need to take a step back now and consider and prepare for the things we really need, and how to utilize essential tools and devices we already have when they are actually needed if we only had power to use them.
I’ve built portable solar and battery backup systems using various parts and components over the last five years and much prefer the size, weight and package of the Sentinel compared to many of those I’ve built. I would like more battery capacity but with more capacity you add weight and lose portability, so I just use multiple Sentinel’s when I need more power. This Sentinel package by itself however matches at least minimally the ability to run a kitchen appliances, grain mills, bread mixer, tools, lights, radios and other basic devices enough to handle the basics needs for an emergency or even long term power outage. It will even power some fridges or freezers for short periods of time when needed. The Humless Sentinel is a great system and I would recommend it to anyone.