EASYLONGER 110w Solar Panel: AMAZON LINK
MC4-to-MC4 20′ Extension Cables: AMAZON LINK
MC4-to-XT60 10′ Solar Cable: AMAZON LINK

I own two other portable solar panels, both rated at 100 watts, and I never use them. They are lightweight, which is nice for transporting but terrible for staying upright in Oklahoma wind. They also don’t deliver anywhere near 100w. Even after fiddling with angles and whatnot the best I’ve ever got is 80w, which is okay if you’re charging lights and phones and inadequate if you’re charging a power station.

As I said in my YouTube review, and I’m being 100% honest, this ESP110 solar panel is my new favorite solar panel.

The ESP110 is a foldable solar panel that comes in a hard, waterproof plastic case. The case is surrounded by a zippable cloth case that includes a pocket for all your cables and adapters. Also, the solar panel weighs about 14 lbs. For comparison, my AllPowers 100w solar panel weighs just over 8 pounds, and the no-name Chinese one I got weighs less than that. The added weight from the plastic case not only protects the ESP110 during transport, but gives the unit enough weight to keep it from constantly blowing over.

The unit folds out into four panels. There are legs on the back with snaps to hold them in place and ties to keep the legs open to a specific angle. It’s a nice touch.

The ESP110 has MC4 cables (like all solar panels) attached and a pigtail cable with MC4 connections on one end and three connectors on the other. Attached are XT60, Anderson, and a DC 5521 barrel connection. You also get three barrel adapters that plug into the barrel connector that match all major brands. It’s hard to think of something this can’t connect to.

One of the handiest features is found on the back of the panel — a small black box containing two USB-A ports for charging USB devices. To me, this is a game changer as I can connect the main charging cable to the power station located inside my van using an MC4-to-MC4 extention cable (not included) and still be able to sit outside and charge my phone and Bluetooth speaker. None of my other panels include this option, and I love it.

Measuring a solar panel’s effeciency is tough because there are so many variables like the weather, the season, the angle of the sun, the angle of the panel, and so on. I’ve been told that for portable and flexible solar panels, about 70% efficiency of the advertised wattage is a realistic expection. I’ve largely found that to be true, as my van has 400w of flexible solar panels mounted to the roof and on most sunny days I pull in 260w-280w, give or take. That being said, after unfolding the ESP110 and aiming it south around 2pm on a sunny October weekend, I was able to pull in 98w without messing with angles, directions, or anything else. It’s possible to get even better performance with a bit of tweaking. This is by far the best performing solar panel I have tested.

The ESP110 is a more expensive than the other two foldable 100w solar panels I own, and after an afternoon of using it I would say the price is justified. Purchasing a cheaper solar panel is pointless if it doesn’t perform well and doesn’t get used. The ESP110 is staying in the keep pile.

EASYLONGER 110w Solar Panel: AMAZON LINK
MC4-to-MC4 20′ Extension Cables: AMAZON LINK
MC4-to-XT60 10′ Solar Cable: AMAZON LINK