does this device protect against overcharging?
798043
No - its a simple wall charger with the amps you need to charge larger devices.
798044
For all intents and purposes, this device mimics the USB port you would find in any computer. The only difference is that some ports have had their data pins fixed in a particular configuration that signals to the phone that it may attempt to draw more current than the standard USB protocol would normally allow. It's important to point out that current is regulated by the *device being charged* and not the USB source itself. It is not clear what you mean by "overcharging," but every possible definition I can invent for that term would be under the control of the device being charged and not this device. In other words, this device does not receive any feedback about the status of the battery being charged, and so it provides as much current as is being requested by the electronics connected to the battery being charged. It is the responsibility of the battery-charging electronics to maintain the health of the battery. This device is rated to provide up to 25W of power across all five USB ports. That means that a port could conceivably provide up to 5A of current. However, this 5A specification is simply an upper *limit.* The actual current provided is controlled by the device being charged. All that this device is responsible for is providing relatively clean DC power to each of the 5 USB ports. As far as I can tell, it does that very well.
798045
The overcharge protection is part of the device being charged, not the charger/power source. It won't keep your auto repair shop or insurance agent from overcharging you!
247754
Not that I have found. We keep ours plugged into the charger, just a blue light that it's charged and have not had a problem with over charging.
349817
I would say yes since it suffers poor cell construction leading to low or insufficient voltage. Just dont let it near your wallet.
998710
I agree. They should recall. It is a great device for the minute it works but overheating is a major issue. Don't waste your time buying. ;(
567607
David- I just came across your post and wanted to reply. As the external meter sensor provides no benefit without the display module, it would be worthless for someone to try and steal it. To date, we have not heard of a single instance where any customer has had their meter sensor stolen. I hope this alleviates your concern. Regards, Scott Pollard, Product Manager for the Energy Saver Series, Black & Decker
2111066
You will not overcharge if using the Digital charger supplied with the product, It automatically Stops charging. Also Ultrafire's 18650 batteries have built-in protection. They are quite good and hold up pretty well to abuse
1795000
Yes, it is compatible with other brands that have the same "micro USB" port configuration. YOu don't have to worry about "overcharging" as most phone have software will not allow overcharging to occur.
2187594
Usually, over 80%， device has overcharge protection to protect battery. The overcharge protection is coming with device not charger I think. Hope this helps
29032
yes it will not overcharge, once it drops below full charge it brings it back up. I have three of these and always leave them in with no problems
1951410
Yes... I just got mine in the mail several weeks ago, and it has charged up several electronic devices I tried. I'm going to keep it handy in case of power failures here in Florida during our storm season. It's worth the money!
645954
Yes. That works too. I have charged it more than half a dozen times and found no issues.
247971
No, its a trickle charger and the current isn't enough to cause an overcharge. I have left it connected for long periods with out ill effect
1345056
I would not expect to see it lose charge for one or two weeks. But if you are at home, just leave it plugged in. The circuits will protect it, it will not overcharge.
1171268
charge it to be safe,when you plug the charge in it will automatically start charging at a lower number and work its way up,you can tell how much of a charge it needs by how long it takes to get back to 100%,you cant over charge it so this wont hurt it,once your sure its 100% only charge it when it gets low,if its fully charged your just wasting electricity!!!!!
943266
No it will not overcharge and there is no controller. There is a scientific explanation why its all ok but i cant tell you that.
1671734
No, that would be a function of the unit being charged, but I'm not sure there is a danger of overcharging with phones, etc. This unit is not as strong and , therefore, as fast as your regular USB cable from a wall plug.
851645
You need to run thru a charge controller of some sort in either case to prevent overcharging.