5.0 out of 5 stars Battery bank capacity

M.B. · June 12, 2025

(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } I’ve had this battery bank a little over a month give or take. The description states 50k mah. Now I don’t think that’s entirely accurate as many battery banks have different capacities when the control board converts 3.7v to 5v 9v 10v or 12v. Yes it does have plenty of power and capacity. I’d say it’s probably more like a 25k mah capacity after the board converts the voltage to the connected device. Would I buy it again? Yes if it’s on sale like it currently still is. One last comment is that I recommend using a charger block that supports quick charge or power delivery otherwise at regular 5v usb it will take almost a full day to recharge.

5.0 out of 5 stars Very powerful battery bank

R.W. · June 19, 2025

Works well, It took two weeks to discharge to 5%(flashing), always charging my iPhone plus my ELB rechargeable batteries and small RC batteries. It cuts at full charge of your device and does not overcharge. It also cuts off at 100% when charging. It charges from 5% to 100% in about 10 hours. If I can get a few years out of this it will be well worth the price.My Grandson asked for extra TRX4m batteries. I game him the two I had and then bought this for myself. So far very well pleased.

5.0 out of 5 stars Heavy and bulky but great charging capabilities.

D. · June 8, 2025

I got this on a sale. I have had a lot of portable battery chargers before but I never had more than the cheaper ones and I would find those on sale or on cleanance. This one is hefty and heavy you probably won't be able to carry this in your pocket. I carry mine in my backpack and sometimes just use it when the closest outlet is far away. The interface for charging and capacity is very nice. It has a very nice selection of various outlets. I haven't tested it charging many devices simultaneously yet. It is great for charging my Chromebook too and it holds so many charges.It's very good and useful but an inconvenience to carry.

4.0 out of 5 stars 50,000mah POWER BANK

E.F. · June 9, 2025

Item was on sale for a great price for a 50,000mah power bank. Received quickly as usual from Bolo. First, this item is fairly heavy. Which for a 50k mah power bank, it probably should be. Not something that I would want to lug around in a fanny pack, or crossbody bag. It was about 50% charged when received, so charged it to 100%. Took several hours to fully charge. Took on an extended vacation as a backup when needed. Performed without any incident in charging our phones. Would have to say it seemed that it discharged fairly fast. So only comments would be, heavy unit, long time to charge, and discharges quickly. Still a decent power bank for the sale price.

5.0 out of 5 stars Great quality, quick charging, large capacity

R.L. · June 18, 2025

This charger arrived fast. It is a fairly large external battery and has multiple charging ports. Two USB and one C port. You can charge your phone and/or tablets quickly.With its fast charging and massive battery capacity, I can charge my phone 6-8 times on a single charge.It does take a little while to recharge the power bank, but it is well worth it.

5.0 out of 5 stars Impressive quality and design

J.w. · June 19, 2025

This thing is a beast sizable you won't lose it in your backpack or your pocketbook your power is up it charges fast if you're powering a tablet you can watch four or five movies on one charge of this Bank it holds a charge one of the better portable banks that I have owned super interested in seeing some prime day and buying another

5.0 out of 5 stars Charges my phone really fast

d. · May 14, 2025

Works great. It's powerful for its small size. I keep it next to my recliner to charge my phone, Kindle, ear buds, anything that's running low in the evening. It takes up no space at all to leave it set there all the time. It charges everything quickly. It does take take awhile to charge it back up when it's running low, but I've never bothered to time it. I just plug it into a wall outlet before I go to bed and I know it will be fully charged by morning. The only curious thing about it is the power 'switch'. It's not a switch. It's more like an icon that you just touch lightly to turn on the display. Once you get the hang of that it works fine.

4.0 out of 5 stars Three month warranty? Really?

R. · June 19, 2025

This baby is heavier than it looks! That speaks to the power density of the lithium polymer battery. I’m looking forward to having plenty of charges for my iPhone and watches. I am, however, disappointed and somewhat concerned that it only comes with a 3-month warranty. Hence the 4-Star rating instead of 5.