myCharge Portable Charger Waterproof USB C Power Bank Adventure 20100mAh Internal Battery / 18W Turbo Fast Charging Rugged Outdoor External Battery Pack Backup for Apple iPhone, iPad, Android

I like the rugged feel of the battery and the supposed IP67 rating. It is not too heavy for the capacity of the battery, 1lb. I would be more satisfied and given a 5 star if however, the actual capacity were more realistic to real life circumstances. As it is, I believe that the actual capacity would be more in the realm of 13,000 - 15,000 mAh.Just know what to expect with any battery, the output is always lower then their suggestion.A few tips on maintaining any battery lithium or otherwise:1. Depleting the battery lower than 50% DOD is unhealthy for the battery and decreases the number of possible recharge cycles.2. Exposure to heat when charging or not charging is detrimental.3. High speed charging, while convenient, is damaging to batteries and should be avoided when possible.

So I bought this cause I needed a portable charger for when I went camping. At first it was charging good and still is but there was one problem. When my phone battery was at 15% I used it to charge but instead of charging, it starting eating up the last 15% on my phone. I was confuse at why this was, but after my phone died, I unplug and plug in again then it started charging okay again. Not sure why that is, it works and does its job great, except for that one little problem.

Recharged my iphone 6 times before it ran out, used it for a 4 day camping trip

I like the design, having the carabiner is very convenient. But the charging isn't very good. It charges maybe 5% in 15 minutes. Not sure if I got a dud though.

This is a great travel companion. It's light & the right size to fit in any bag. On the flip side it's slow to charge a device. It took almost 3 hoursto charge my device to 60%. I was without electrical power (d/t a ice storm) for 4 days & I'm glad I had this charger!

So far this charger is a beast! I have a had it almost week now and have not had to recharge it yet. According to the LED lights, it's still fully charged. I ive only use to charge my phone while at work and that may as well be why it's lasting long..I still give it 5 stars because I've older powerbanks I had to charge shortly after charging my phone.

THIS IS AN ABSOLUTELY PERFECT BATTERY PACK! I USE THIS CONSTANTLY! I KEEP IT FULLY CHARGED AND IN MY PURSE! DONT LOSE THE CHARGE CABLE THAT COMES WITH IT AND BE CAREFUL WITH THE LITTLE RUBBER CAP ON TOP, IT CAN BREAK OFF EASILY...AND THAT IS WHAT HELPS KEEP WATER AND DEBRIS OUT!THIS IS MY SECOND ONE! I ORIGINALLY HAD PURCHASED THE SMALLER ONE FROM BEST BUY (THATS JUST WHERE I SAW IT FIRST TIME) AND HAD BOUGHT GEEK SQUAD ON IT...BOY THAT WAS DUMB! THESE THINGS ARE SOLID AS ROCKS!!! I ENDED UP LOSING THE SMALL ONE AND I USED IT A LOT FOR CAMPING, ETC., SO I DECIDED TO PURCHASE THE LARGE ONE BECAUSE THEY HAD A LITTLE SALE ON THEM...WELL AFTER I RECEIVED THE LARGE ONE WE FOUND THE LITTLE ONE! LOL! I GAVE THE LITTLE ONE TO MY GRANDDAUGHTER, SHE CAMPS WHEN I DO AND VICE VERSA (BOY SCOUTS) SHE ABSOLUTELY LOVES IT, SHE HAD A BIG BULKY ONE THIS ONE IS SMALL AND COMPACT! WELL AFTER I HAD THE LARGE ONE FOR JUST A BIT, I NOTICED IT WASNT CHARGING ITSELF OR MY PHONE LIKE IT SHOULD AND THE LITTLE RUBBER CAP ON TOP BROKE OFF I CONTACTED THE COMPANY, I FIGURED THEY WOULDN'T CARE, IT MAY HAVE BEEN AFTER THE RETURN DATE, IM NOT SURE...BUT THEY INVESTIGATED, UNDERSTOOD WHAT WAS WRONG WITH IT, LOOKED AT THE PURCHASE ORDER...AND BY GOD, THEY SENT ME A BRAND NEW ONE! I HAVENT HAD AN ISSUE SINCE! IT WORKS PERFECTLY!IT HOLDS ITS CHARGE WHEN NOT IN USE FOR WELL OVER A WEEK OR SO..........WHEN ITS IN USE, CHARGING A PHONE FOR A WEEKEND THAT NEEDS TO BE FULLY CHARGED USUALLY TWICE A DAY (YES, CRAPPY PHONE) THIS THING IS STILL ONLY HALF USED! WE'RE GETTING READY FOR A WEEK LONG CAMPING TRIP, AND IM SURE THIS ADVENTURE BATTERY PACK WILL HOLD UP ALL THE WAY THROUGH THE TRIP! NO DOUBT! THE SMALLER ONE, I DONT THINK SO, BUT IT WILL HOLD UP FOR 3+DAYS, SHE HAS A BETTER PHONE THAN I DO LOL! I STRONGLY RECOMMEND THE PURCHASE OF THIS BATTERY PACK, YOU WILL NOT BE DISAPOINTED! IT IS VERY HEAVY DUTY AND RUGGED! AND STAYS CHARGED FOR FOREVER!

Charges slow but works great