Portable Solar Battery Charging Systems

Best portable battery. Fast charging time from wall outlet. Good mppt charging from solar. Lifepo4 batteries for a longer battery life. Extended battery. Big inverter to power most needs. EcoFlow quality. Way better than the Goalzero. Also the Bluetooth and wifi app is well designed

Having owned several brands of portable batteries for our off grid solar living, I was pleased to receive the DELTA 2 addition recently. The battery is extremely fast charging, reliable, and as advertised. Well designed and the app is a plus for monitoring. I love that it is lithiumFE battery based which will allow many cycles of charging.

Great product , does pass through charging and has 2 solar inputs, I just ordered one extra battery.

Already own a Delta, which is a five star product. But after a recent storm left us without power longer and run time shorter than expected we needed more. Well the more we found was in a Delta 2 Max. After receiving it we tested it on our frig, Whirlpool 22cf side by side circa 2008. 10hrs afterward it had 50% battery remaining. Decided to go all in and connect our 2 160w solar panels in serial purchased for our Delta. Started charging once sun was up at 220w. Solar started charging when battery was at 32%, 1 hr later battery at 37%. We've been in and out of frig adding groceries so it has run nearly non-stop for 4 hrs at 150w but our Delta 2 Max is recharged up to 55%. Sun is setting and input has dropped to 190w. So staggered at the performance, longevity and portability we went all in and bought the 2 add-on batteries and another 160w solar panel. FYI haven't used app and don't care to. Plan on getting manual switch over for whole home backup.

Backup charging for when I need it. This availability of the solar charging system was the answer to one of my main concerns regarding using the battery backup during a power outage.

This charger is amazing! I'm planning a backpacking trip and require a DC charger to hook to my solar panel. I bought this charger because it has exchangeable plates that can charge both my camera batteries when used with an extra 5$ plate. I hooked this up to my panel and was able to charge my battery in less than 8h with the charger working flawlessly. It also has a AC plug with adapter for the euro zone. The USB charging port is also a plus. I contacted the company to ask if this product would work with a solar panel and had a few questions as to if the device would shut off once the battery was fully charged (it does) and what would happen to the USB port (does not turn off) because I planned to use it as trickle charging of a USB battery.. I have not tested the USB port as my plans have changed, but I was very happy with the company responding within 8 hours of my request!

Traveled first year with our RV all the way from Virginia to Colorado…. Boon dock a couple of places and it was darn hot!! No power. We had our portable fan as to minimize RV battery but just could not cool it enough. I have added and upgraded our RV battery since last year. In addition I purchased the ecoflow pro, ecoflow pro extra battery, ecoflow portable generator, and also the ecoflow 400W solar panel. I have tested it out and so far it works pretty darn good. Granted it will provide only 6 hours to power essentials and running one of 2 15k BTU AC. Of course I had to add softstart to the RV AC (very easy install). I plan on buying additional extra battery from ecoflow and of course double capacity to the RV batteries as well. Anyway for a beginner RV’er this solved my problems for cooling without excessive manipulation to the RV power system. I just used the 30A converter to 50 A directly to RV power input…and will power on for at least 6 hrs without the 400w solar and portable generator (haven’t tested generator yet) connected. We will see how it goes this year but so far I am very happy with our ecoflow system. Side note I build solar panel holder with pvc wood as it is light, flexible, and easily transported in RV…set it up so it will take less than 5 min to set up.

The Goal Zero Nomad 20 is a great portable solar panel. I haven't given it a lot of use yet, but already it works as intended. I am able to charge my phone off it when the sky is overcast. In direct sunlight, it charges faster. I was also able to charge a usb battery pack, that doubles as a car jump starter, while out camping where there was no electricity. This was handy, considering I drained my car battery running a waffle maker. Downsides? it doesn't come with a carrying strap, though it isn't hard to add one.

We have been looking for a portable solar battery for tailgating and backyard football/movie watching. Watched and read many reviews and was excited when the Delta 2 came out and immediately purchased it. We already have 2-160w EcoFlow solar panels which we plan to use with the Delta 2. My only complaint is that although it can accept 500w charging, the 60 amp voltage limits it to 2 panels. Other than that, it is excellent and highly recommended.

The consistency of the color and speed of this portable system rivals the best studio systems out there. Battery lasts pretty well, especially in Eco mode. More than enough power to overpower the sun for outdoor fashion work. Wireless RFS 2.2 is wicked fast, too.