I’m thinking about buying 2-3 SolarForce (6pc / 18650) Battery cases
Those of you that have them, what are your thoughts? Are they built pretty solid?
I’m attracted to them because of the clamshell design.
Solarforce makes a great case … can’t go wrong. A little pricey.
I like these … https://www.gearbest.com/led-accessories/pp_582742.html
Especially with a coupon … I own 5 and have no complaints.
5pcs for $8 you can’t beat that.
How are they holding up?
I have not conducted a water test with batteries installed. But I have traveled with the cases while boating and rainy conditions with no leaks to report. I did submerge an emty sealed case and no leakage. I am sure others here have some experience with these fine cases and might share their opinions.
I recommend them … 
Thanks for responding :THUMBS-UP:
The SolarForce are a little pricey. They appear to be a quality case though
Very solid case and the silicone seal fits great. Had mine for years but after a single drop from 3ft high the hinge part developed a crack, but still in one piece and works fine.
Solarforce are great and not dedicated to 18650 diameter batteries. Great for 26650’s. Build is very tuff.
Pelican. I never thought of that brand being so small. I might look into them :THUMBS-UP:
Thanks for the response, Will :THUMBS-UP:
To answer the original question, no I wouldn’t buy it again, instead I would just store my cells in cheap cases and if I ever need to take my cells to the wet and need to ensure waterproofness I would use something like this:
Fits 4x18650 with some height to spare.
https://countycomm.com/collections/capsules/products/delrin-ultimate-edc-capsule
Nice Delrin case. (Hmm, I have some stock of Delrin rod in different diameters. You have me thinking now! 
)
I can get two Pelican micros for a tad more.
I just got the Solarforce case about two days ago. Looks sharp, great for a backpack and i like the way it seals. Will34 mentioned a crack, i agree the plastic seems like the kind that would shatter on impact other than that im ordering a few more. Hope that helps.
After a long look at everything available, I ended up getting four Pelican 1010 Micros.
This particular model will hold 12x-18650’s or 4x-26650’s
The below images were posted over at that other forum
*Case is able to be submerged under 1 meter of water for up to 30 minutes in accordance with IP67 testing parameters
Available in clear with color liner or solid
Watertight*, crushproof, and dustproof
Carabiner
Easy open latch
Lifetime Guarantee of Excellence
Rubber liner for extra protection doubles as o-ring seal
Stainless steel hardware
INTERIOR (L x W x H)
4.37” x 2.87” x 1.68” (11.1 x 7.3 x 4.3 cm)
EXTERIOR (L X W X D)
5.88” x 4.06” x 2.12” (14.9 x 10.3 x 5.4 cm)
LID DEPTH: 0.69” (1.8 cm)
BOTTOM DEPTH: 0.94” (2.4 cm)
TOTAL DEPTH: 1.63” (4.1 cm)
My Pelican 1010 Micros arrived. They are PERFECT 18650/26650 cases :THUMBS-UP: