Reddit reviews Eversame USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black
We found 14 Reddit comments about Eversame USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black. Here are the top ones, ranked by their Reddit score.
MULTIFUNCTIONAL USB TESTER: USB Meter Tester is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. Meanwhile multimeter USB detector can be applied to the Power Capacity Storage and Over/Low Voltage-current Protection. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily.BUILT-IN MORE SAFETY: Each USB meter tester has been built-in circuit with containing CW3002D chip for accelerating Large Current Fast Charging. Plus the Interior Smart System is designed to detect safety. The multimeter tester also supports QC 2.0/3.0 high voltage test, with the function of cutting off automatically when it’s fully charged, to protect your valuable devices effectively.PREMIUM LCD DISPLAY: Crafted from high-grade LCD monitor with low power consumption feature, bright and clear enough to monitor the parameters on the screen. Comes with three various display modes for your choosing. Ideally be broadly applicable to test capacity and electric energy of power bank; test the maximum output current of the charger; and test charging speed and quality of data cable and charging cable.WIDE TESTING RANGE & SIMPLE OPERATION：Input/Output Voltage: DC3-30V, Current Range: 0-5.1A. This portable USB tester is easy to carry and enables you to put it in your bag or your pocket whenever you go.PACKAGE: 1X Multimeter USB Tester. 100% SATISFACTION WARRANTY: We stand behind all of our products 100%.Every item includes worry-free 12-Month with considerate customer service. Eversame always bear in mind that your satisfaction is our priority. For any reason you are unsatisfied with our product at any time, just feel free contact support for exchange or refund. Our customer service team are here and ready to assist you with any questions.
9 days is starting to get to where a panel makes sense. I will have to try this one because I've never had a panel perform decently on the back of a pack. Maybe the monocrystaline makes the difference?
That said if all you need is 10Ah that is 165 grams versus the 207 grams of panel+anker.
I highly recommend getting a usb power logger and seeing exactly how much juice you use.
edit: The amazon reviews for that panel are more in line with what I would expect from it? It is a shame that it uses a 6W USB regulator.
Blinking red means the battery is totally dead. The pulsing white LED while it was “charging” was, unfortunately, a lie. These units sometimes lie like that. They make just enough contact with the charging pins to get the LED going, but not enough to actually, you know, charge the fucking battery.
I had the same problem with one of my units. I bought one of these in order to verify when the Juul is actually taking current vs. being a filthy liar.
You can try cleaning the contacts on the bottom of the Juul and on the charger itself. Use rubbing alcohol on a cotton swab and really get in there. A toothpick works well also.
If it gets to be too much hassle, file a warranty claim. They’ll replace it with the newer version that has improved bottom contacts.
I will also say the Anker 21W is very good at what it does, but on the heavier side of trying to keep weight down. Another option i've been testing is this:
Renogy E.Flex 5W Portable Solar Panel with USB Port https://www.amazon.com/dp/B01K8NTKHM/
I was able to get output up to 700mAh in direct sunlight. substantially lighter than Anker, and a good option to clip/hang from pack over the course of a day.
I will also recommend this multimeter:
Eversame USB Digital Power Meter Tester Multimeter
https://www.amazon.com/dp/B01D9Y6ZFW/
i had to modify the Renogy solar panel with a small cut out in order to fit the multimeter in the USB port. this will give you a good measurement of how much juice you've gotten from the sun over the course of a day. I am going to bed and will post pics of my setup later.
Well so one additional detail is that (prior to USB C) the combination of charger and phone dictate whether the full ~2.4A is actually drawn. The requirements are a bit different for phones from different vendors, which is why many charger vendors advertise compatibility with different manufacturers' phones (e.g. Anker PowerIQ). So just because a charger can feed a phone 2.4A doesn't mean it'll actually hit that. You can measure the current flow using a USB power meter that sits between the phone and charger (e.g. https://www.amazon.com/gp/aw/d/B01D9Y6ZFW/ ).
But yes, if your old charger is actually able to feed its full rated power to the 950XL, then it's not much slower than the fastest the phone can take, which would come from a charger with 3A max output and a USB-C connector, plugged into the phone via a USB C-to-C cable.
Well a typical USB 2.0 port is specified to deliver 5W, so lets assume its a fancy keyboard with RGB and its using all 5watts. In 1 year it would consume 4.38kwhs, that times the US average of 12 cents per kwh gives us $0.52/year, or $0.00144/day
If you really want to know you could find out with one of these
You can try something like https://www.amazon.com/Eversame-Multimeter-Chargers-Capacity-Banks-Black/dp/B01D9Y6ZFW/ref=sr_1_2?ie=UTF8&qid=1492233491&sr=8-2&keywords=usb+power+meter
I've got a older eFest LUC V4 that I use to charge my 18650's (had a Nitecore before that) that also does the USB out thing.
Do you have a USB voltage reader? Like this: https://www.amazon.com/gp/aw/d/B01D9Y6ZFW/ref=mp_s_a_1_1?ie=UTF8&qid=1493382857&sr=8-1-spons&pi=AC_SX236_SY340_QL65&keywords=usb+voltage+meter&psc=1
Depends if the Nitecore has a regulating chip for the USB output. If it is just straight output in series with 2 18650's you'd have 8.4v when they are fully charged and about 6.4v when the batteries are fully depleted. Theoretically the output would spend most of its time at 7.4v (3.7x times 2) (Edit:So there has to be a voltage regulator on board. )but since you have a vape I suppose you know how batteries perform.
Back when I got into vaping regulated boxes were not a thing and we had to know ohms law and all that. Hard to believe that was only 4 years ago, the tech has come a long way from flashlight batteries and a tube!
I don't have 2 fully charged batteries right now but if I get a chance I'll configure mine and see what the output is. Charging the 2nd 18650 now...
Get a USB voltage/current meter and you'll know for sure. Here's a decent meter:
https://www.amazon.com/gp/product/B01D9Y6ZFW
Sometimes the voltage is increased to get more energy into the phone without using as much current (heats wires and contacts).
Sometimes a bad cable can limit the amount of current that gets through to the phone.
Couldn’t find any information either, but since you like to tinker, get one of these:
Eversame USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, https://www.amazon.com/dp/B01D9Y6ZFW/ref=cm_sw_r_cp_api_k0iVzb205TD52
I have one and it rocks.
Nice to know!
A handy tool for debugging current issues are these small current meters for USB. They can be had for quite cheap on eBay as well.
You could use a device like this.
Eversame USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black https://www.amazon.com/dp/B01D9Y6ZFW/ref=cm_sw_r_cp_api_FKs2Bb5ENXJ69
I use these to test power banks quite often and it works well.
I use
Eversame USB Digital Power Meter... https://www.amazon.com/dp/B01D9Y6ZFW?ref=ppx_pop_mob_ap_share
no quality loss, I think your gonna be fine. I suggest buying one of these.
USB Voltage / amperage tester
An iPhone will get hot when charging fast, that is pretty normal. So that might explain the iPhone getting hot.
Most USB memory sticks will get pretty warm or even hot when being written to for a long time. And the Tesla writes to them constantly it seems. You can test this by putting your USB stick into a computer and copying lots of data to it, keep the copy going for 15 minutes or so and it should heat up, assuming you used the right port and the data rate is high enough.
I assume you meant SSD Drive or USB Stick when you said Hard Drive. SSD's also get hot when written to for a long time.
So I think what you are seeing is normal. If you are worried, buy a cheap in-line USB tester and check the voltage on the USB port. Plug it into the Tesla and your device into the tester. Voltage should be close to 5v (±5% 4.750 - 5.250 VDC) all the time. Higher (and sometimes lower) voltage might damage a USB device. Though usually the out-of-range voltage has to be extreme for damage to happen.
Something like this one -- https://www.amazon.com/dp/B01D9Y6ZFW