Frequently Asked Questions

Which is better for camping, the YELOMIN or the Kepswin?

I’d pick the YELOMIN for camping because it has three USB outputs instead of two, so you can charge your phone, a friend’s phone, and a headlamp all at once. It also has two LED flashlights with SOS and strobe modes, which is more useful around a campsite than the Kepswin’s single set of lights. The YELOMIN’s waterproof and dustproof port cover also gives me more confidence if it gets left out in a drizzle.

Is the Kepswin worth buying over the YELOMIN?

Only if you care about size and weight. The Kepswin is noticeably smaller at 6 x 3 x 1 inches and lighter at 200 grams, making it easier to clip onto a backpack with the included carabiner. But you’re giving up one USB output and a slightly lower 4.2-star rating compared to the YELOMIN’s 4.4 stars. For the same capacity, I’d take the YELOMIN unless space is your top priority.

Can I take these solar chargers on a plane?

The YELOMIN is rated at 74Wh, which is under the standard 100Wh limit for carry-on luggage, so it should be fine for air travel. Kepswin actually warns in its product description that its 38800mAh capacity may exceed airline carry-on restrictions, so you need to check with your specific airline before flying. That’s a big advantage for the YELOMIN if you travel by plane.

How fast do these solar chargers actually charge phones?

Both the YELOMIN and Kepswin have built-in 5V/2.4A USB outputs, so they charge at the same speed — roughly a standard wall charger speed for most phones. The YELOMIN can charge three phones at that speed simultaneously thanks to its three ports, while the Kepswin maxes out at two. Neither supports fast charging protocols like Qualcomm Quick Charge, so don’t expect blazing speeds.

Which one has better build quality?

Both are made by the same manufacturer, Shenzhen Fashiontec Technology Co., Ltd, so the build quality is very similar. The YELOMIN has a slightly higher 4.4 out of 5 stars from 410 reviews compared to the Kepswin’s 4.2 out of 5 from 438 reviews, which suggests a bit more customer satisfaction. I also prefer the YELOMIN’s dedicated waterproof cover over the charging ports for durability in wet conditions.

Can these power banks charge my tablet or iPad?

Yes, both can charge tablets and iPads since they have USB Type-C input and output and 5V/2.4A outputs. The Kepswin specifically lists iPad compatibility in its specs, and the YELOMIN says it works with tablets. Just keep in mind that at 2.4 amps, charging an iPad will be slower than using the original charger — expect overnight top-ups rather than quick fills.