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DJI, DJI Spark, DJI Spark USB, DJI Spark USB charging, DJI Spark usb battery, DJI spark external battery, usb battery dji spark,DJI Spark: Charging With External USB Battery!
Get This Solar Charger on Amazon:
This solar charger passed my tests, even in the early evening on a fall day!
I have tested 5 of these folding solar chargers now. This one is is just as good or better than others. I tested the 28 watt (4 Fold) version which is capable of charging up to 3 devices. This one has a rubber weather protector over the USB ports to help protect from water and dust. I also like the soft tie downs on this charger. Many of the others on the market use metal rivet holes. The flexible strap points on this one will give a little bit more flexibility in attaching this panel to a tent, tree, backpack, etc…
Unlike other 28 watt solar chargers that I have tested, this one has only 3 USB ports. Believe it or not, this is actually a good thing. While you probably could charge 4 full sized smart phones in the middle of the day with the sun directly overhead, in the morning or evening, you are going to be asking way too much of the charger trying to power 4 devices. You may get some erratic behavior and put a lot of stress on the charging circuits of your devices. 3 Ports is just right for a 28watt solar charger
I tested this thing outside in the late afternoon sun on a fall day (4:30PM on 9/28/16 to be exact). Even being late in the day I was able to get 3.1 Amps reliably out of it. Had I tested it in the middle of the day, I’m sure I could have gotten up to 3.5 amps. I used a constant current load resistor set at 2.5 amps at first. The charger had no trouble powering it. I had to go beyond the 2.5amp limit of my load resistor so I brought out a power hungry bluetooth speaker which is always good for drawing about an amp. I had to dial down the load resistor to 2.1 amps. The speaker plus the load resistor together drew 3.14 amps. Voltage on the 1amp port did not drop below 4.75. Voltage on the heavy draw, 2.1amp port dropped down to +/- 4.5 volts. (As you can see on camera I kept having to adjust the amperage down because the sun was lowering on the horizon).
This solar charger works well and would be a great choice for anyone looking to buy a solar charger. Just decide how many devices you want to be able to charge. If you want to be able to charge 3 devices, get the 28 watt charger, If you only want to charge 2, the 21 watt will be more than adequate.
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One of the key reasons I think people are overestimating the infrastructure costs required to support electric vehicles and why we are at risk of overbuilding public fast charging is: Electric vehicles themselves can act as DC fast chargers for other electric vehicles.
Imagine if every new EV was also a DC fast charger and local EV owners could sell excess energy to EV owners who are traveling.
Installing Solar Panels in a Small Off Grid Cabin. In this video we get started installing my medium size solar setup. We install the wire from the panels to the Midnight solar combiner box, run wire to the Victron 100/30 charge controller, install the Cotek SD 124 1500 watt hard wire inverter, the breakers and the Crown CR 260 Batteries. There is a summary of the total system cost at the end of the video. Here are some links to some of the components used. Thanks for watching!
Victron Charge Controller: https://amzn.to/2qwqSLC
Victron BMV 712 https://amzn.to/2QtN04Y
Cotek Inverters: https://amzn.to/2PHuj09
Midnight MNPV-3: https://amzn.to/2F4Zw9J
Midnight Baby Box: https://amzn.to/2SUuNiD
Midnight Breakers: https://amzn.to/2F4Ek3D
Midnight Surge Protector: https://amzn.to/2QmzUpP
Iota Battery Chargers: https://www.amazon.com/gp/search/ref=as_li_qf_sp_sr_il_tl?ie=UTF8&tag=50acresandaca-20&keywords=Iota Engineering&index=aps&camp=1789&creative=9325&linkCode=xm2&linkId=38d2820b65bff9754181bbe2a0c388af
How to make automatic cut off charger battery 12V circuit at home
Download PCB and Circuit here: https://goo.gl/uuMkR4
Thank you for watching! Please like and subscribe. Comment if you have any ideas for my next video.
A new generation of smart mobile power is here. EcoFlow Tech’s first product, River, is a portable battery with 412W output, 11 charger ports, flow-through charging, and a shelf life of 1 year. World’s, most comprehensive array of charging ports ever. Mega-Capacity 116,000mAh/412Wh Li-ion Battery & Total Output of 500 Watts. Ultra-Lightweight (11 lbs). River can be re-charged through car, wall, and solar chargers.
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Top 5 Best Battery Charger Reviews 2017 | Best Car Battery Charger
1. NOCO Genius G7200 12V/24V 7.2A UltraSafe Smart Battery Charger
2. Schumacher SC-1200A/CA SpeedCharge 2/8/12 Amp Charger/Maintainer/Tester
3. Schumacher SE-4022 2/10/40/200 Amp Manual Wheeled Battery Charger and Tester
4. Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger
5. Deltran Battery Tender (021-0128) 1.25 Amp Battery Charger
Minding Your mAhs – Ep15 – What is going on with our 20700 batteries?
There have been a lot of changes in what 20700’s are being wrapped and what are available to buy now. I take a look at the changes in a lot of our 20700’s and talk a bit about what’s coming soon.
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These vendors have been reliable in the past for me and many other vapers.
A great calculator for vapers:
Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
Where known, the ratings set by Samsung, Sony, LG, or Panasonic/Sanyo will be used.
Any battery from Samsung, Sony, LG, Panasonic, or Sanyo can be a lower grade battery or a fake. Only buy from a known, trusted source of genuine batteries. Even then, there are no guarantees.
Carefully research any battery you are considering using before purchasing.
Testing batteries at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.
These tests I do only note the estimated ratings for the batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, LG, Panasonic, or Sanyo can change at any time This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.
The information and opinions contained in this video are for general information purposes and are not intended to constitute legal or other professional advice. This video should not be relied on or treated as a substitute for specific advice relevant to particular circumstances.
In this Video I show at test run a Victron MPPT controller with a 100W Allpowers flexible solar panel I purchased on Amazon. I mounted the controller and DC sub panel on starboard so I can easily move it around the Catalina 320 sailboat. The charger sub panel I made from Starboard 1/2 inch. The Sub panel was later mounted inside the port locker next to the shore battery charger where the solar charger and the battery charger shared the connection to the battery from the locker.
Victron BlueSolar 75/15 MPPT Charge Controller – 15 Amps / 75 Volts
Victron VE.Direct Bluetooth Dongle
ALLPOWERS 100W 18V 12V Flexible Solar Panel Charger(with ETFE Layer, MC4 connectors) Semi Bendable Water-Resistant Solar
Blue Sea Systems ST Blade ATO/ATC Fuse Blocks