KBT 5V 8Ah Battery Pack with DC5521 Connector & 5V Battery Charger Compatible with 5 Volt Devices Heated Vest, Heated Jacket, RC Car, Robot, DIY, LED Light Strip

the solar battery on my Allen + Roth umbrella from Lowes broke (My fault). I missed having the LED lighting at night. I bout this to see if it would work... low and behold... works like a champ. I don't know how long it lasts, but at least a few hours. I have never stayed awake long enough to see when it dies. Great way to fix/save an $500 umbrella.

I purchased 2 5v 4A battery packs. They each have different issues.The first pack worked fine until the output was 0v. The charger shows it is fully charged, but there are 0v at the outputThe second pack seems to have a correct output of 5v, but even a small load (less than 3A) sends the voltage to 0. It can't support much of a load at all

I use this batter to power a Loco Griddle. I use a magnetic dry erase marker holder to hang it on the side of the griddle.

(Updated Post)As I am a semi frequent buyer of this brand (different output battery packs), I feel it necessary to post the company's quick response to any 'issues' that may arise. This being my First (and only) problem with their products.They not only reached out quickly (within two days), but were also able to resolve the error promptly. I changed my rating to a 4.5 =)(Original Post)My original intention was to use this in a small bluetooth speaker I made. The specs matched exactly what I was looking for. However, while testing said battery (fully charged), my speaker kept randomly turning off. After a Lot more tinkering than I care to admit, I finally figured out that the battery would only have 5v output if I had the speaker at full volume. In other words: at partial volume, the battery would only produce about 2-3v. Hence shutting the amp off (in protective mode).

This item was purchased to provide a few hours of light from a 5V LED lamp. Unfortunately it only provides about two hours of light before the battery is depleted and the light shuts down. I have a sma;;er battery that is used with a power tool that draws significantly more current and it will run much longer than the light I am using.

These are the best batteries for projects, comes with a cable pre connected to charge and a cable pre connected to wire to, super easy to use. Comes with charger, if you get different volt batteries don't mix up the chargers if you do it says on the charger label the voltage and amp. I bought a 5v for the controller and a 12v battery for the bot. Both work great. Red means charging green means charged. These are good batteries. Better than any other batteries I bought and I have a drawer filled with em.

First one worked for one charge and then it dropped to 2.3v, not enough to run my led. I usually don't bother with a second chance but this was the only one that had the connecting format that worked for me, so I ordered a replacement. The replacement did not work at first try and it read only 2.3v. This is so annoying and I will not go with this company again.

Very nice