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Power Generator for Charging Batteries
3540 25 2018-3-13
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Silverhammer92
lvl.4
Switzerland
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Hello Folks

I was looking for a way to power my mavic and other batteries out in the nowhere. Sadly after a lot of troubleshooting in another post here in the forum, the only valuable Solution seems to be a power Generator.

My plan is two Weeks of Iceland-Camping with no access to a power outlet. I will be traveling by car, but charging my stuff with the car battery would get me stranded.
Following Batteries must be charged:4 Mavic Pro Batteries
1 Mavic Controller
2 Smartphones
2 Gopro Hero 4 Batteries

I will not be able to transport a powergenerator by plane, so the only solution is to buy one in Iceland and (hopefully) sell it again.
Exept one of you guys lives there and has a generator I could use.. but that seems quite utopic ;-)

The question:
I found this generator on thor.is
https://thor.is/index.php?route= ... price&order=ASC

  • Will this generator work to charge all my batteries?
  • Do I need another device to make it work
  • Is there anything I have to consider?
  • How long will it take to charge the mavic batteries from 0% to 100% (I'll charge them all at the same time)


Those are the specs (google-translate):


Engine: Honda GXH50 gasoline, air-cooled. Tank: 3.8 liters. Run time at 75% load: 8.1 hours.  Generator: Sawafuji SF1000 non-corrosive. Maximum power: 1.0 kVA Working Output: 0.9 kVA Voltage: 230V-4 Amp. (1 link) / 12 V Size: (Lxbxh) 47x27x38 cm. Weight: 14 kg.  Inverter technology (power control), can be connected sensitive electrical equipment, e.g. phones and computers. Very quiet electrical outlet, only 64 dB at 7m.
2018-3-13
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Malakai_UK
Captain
Flight distance : 245230 ft
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United Kingdom
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You might be better off with a camping battery and power inverter just for charging your stuff up. There might be camping hire companies out there that will rent you a battery and converter.
2018-3-13
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ukjoncollins
lvl.2
Flight distance : 733737 ft
United Kingdom
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I'd just buy a small inverter and run it off the car battery. Sure you'll need to run the car to use it but it'll be cheaper and easier than a generator. I have one in my van for that very reason.
2018-3-13
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ukjoncollins
lvl.2
Flight distance : 733737 ft
United Kingdom
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Alternatively, you'd get around 8 or 9 battery charges out of something like this: https://www.amazon.co.uk/Portabl ... ZXHXSQ0PNA3YJMCSTGY
2018-3-13
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Wyke
Second Officer
Flight distance : 33166 ft
United Kingdom
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Honda generators are generally very good. I don't know about that model specifically but I have a similar suitcase Honda gen which I took camping, to charge phones, ipads etc. It should be more than enough to charge your batteries. Mine ran for about 4 -5 hours on a tank of petrol, was exceptionally quiet and very useful.
2018-3-13
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Silverhammer92
lvl.4
Switzerland
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@Malakai_UK
I checked with some camping-companies over there and none had something usefull for rent neither did they know any agency who could help me...

@ukjoncollins
I think that would be even more expensive... then I prefer to buy the generator - perhaps I can even resell it...
The camping battery would last max 2 days... too little and we do not drive enough to charge it fast enough.

@Wyke
Thanks for your feedback. Hopefully someone can say that the power is enough to charge my stuff... would hate to go to iceland, buy the generator just to not be able to charge my stuff at the end,.. :S
2018-3-13
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HedgeTrimmer
Captain
United States
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Silverhammer92 Posted at 2018-3-13 23:41
@Malakai_UK
I checked with some camping-companies over there and none had something usefull for rent neither did they know any agency who could help me...

I can't read, Icelandic, thus I am having to guess.

But it looks like generator only supplies 230 VAC, not 120 VAC.
Generator is labeled as 1000, but is shown as 0.9 KVA.  Roughly 3.9 Amps at 230 VAC.
Another spec? points to 4 amps at 230 VAC.  Generator appears to be 900 to 920 watt.
I can't discern anything about Hertz, whether it is 50 Hz or 60 Hz.

As to power-supply / charging load.  You need to add up each charger's rated Amps at specified voltage or use listed wattage at specified voltage to come up with load.
Along with making sure power-supply / chargers will safely work off of 230 VAC at 50 or 60 Hz.
If you or a friend has an Amp meter, you could measure load of all  power-supplies / chargers while charging batteries - hooked into single power  strip, connected to a split extension cord for Amp meter field clamp.

There are couple of other issues.
Amount of Fuel used, liters per hour at idle, half-load, and full-load.  Generators tend to burn through a lot of fuel.

Along with number of hours of running before Oil must be added, and Oil must be changed.  Leading to a liter of oil and spare oil filter.  
I would also want a spare spark plug, and fuel filter.
Assuming extreme cold temperatures, a spray can of starting fluid.  Knowing that is dangerous stuff, when used incorrectly.

And make sure generator is outside, away from any air entry points of whatever you are staying or sleeping in.
2018-3-14
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Silverhammer92
lvl.4
Switzerland
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HedgeTrimmer Posted at 2018-3-14 01:01
I can't read, Icelandic, thus I am having to guess.

But it looks like generator only supplies 230 VAC, not 120 VAC.

This is the charger I am planning to use:

https://www.amazon.de/gp/product ... AECJ8L2T8MR99&psc=1


If I read your post correctly it means, that this should work and take approx. 2 hours (hence the power is not as strong) to go from 0-100 with the postet multi-charger?

Thanks for the reply :-)
2018-3-14
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Wyke
Second Officer
Flight distance : 33166 ft
United Kingdom
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Looking at the specs, Im guessing it’d be sufficient. It has an active capacity of 900w, and peak 1000w, so 3.5A running. It runs at 0.5 litres an hour with a fuel tank of 3.8litres. In addition to the AC outlet, it also has one 12v DC outlet.
2018-3-14
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JensIR
lvl.4
Flight distance : 207631 ft
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The generator will provide more than enough power for the charger, in fact it will probably be way overkill. Most changers etc these days are multi voltage, they will accept either 220 or 120V input, so that will not be an issue normally (just make sure you check the label of each before connecting it).
But, I can not quite see the point in using this big noisy generator when you already have a car. Charging from the car would not run down you car batteries if you just keep the engine running while charging. I suppose you will not be charging all night anyway. Buying a 12V to 230 or 120V converter with capacity to run the chargers will cost a fraction of what the generator will cost. Or you could even use chargers that run directly from the 12V supply in the car. I suspect that this will be a LOT less hassle and also a lot less obnoxious than having the generator running. If you plan on camping I can not really see that you would be allowed to operate this generator in a campsite. And you have to stay in campsites, wild camping is now illegal in Iceland. The smaller items you can also charge directly from 12V mobile phone changers while driving.
2018-3-14
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Wyke
Second Officer
Flight distance : 33166 ft
United Kingdom
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I’d agree with JensIR. It’d be a lot easier to get an inverter and run that off your car’s battery, with engine running to keep that topped up. And cheaper too.
2018-3-14
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HedgeTrimmer
Captain
United States
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Silverhammer92 Posted at 2018-3-14 01:13
This is the charger I am planning to use:

https://www.amazon.de/gp/product ... AECJ8L2T8MR99&psc=1

Have you looked around for a 12V version?

Three of DJI's car chargers would do similar job.   Would need three cigarette (12v) sockets or adapters.
https://store.dji.com/product/mavic-car-charger

If you worried about running down car battery, buy a decent off-road sealed 12v battery and run 12v chargers from that.
With car engine running, you could use jumper cables to charge 12v battery.  Even charge 12v battery while using 12v chargers.

Me, I would get some 8-gauge wire, wire ties, and rig 12v battery to charge while driving.
2018-3-14
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HedgeTrimmer
Captain
United States
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JensIR Posted at 2018-3-14 04:06
The generator will provide more than enough power for the charger, in fact it will probably be way overkill. Most changers etc these days are multi voltage, they will accept either 220 or 120V input, so that will not be an issue normally (just make sure you check the label of each before connecting it).
But, I can not quite see the point in using this big noisy generator when you already have a car. Charging from the car would not run down you car batteries if you just keep the engine running while charging. I suppose you will not be charging all night anyway. Buying a 12V to 230 or 120V converter with capacity to run the chargers will cost a fraction of what the generator will cost. Or you could even use chargers that run directly from the 12V supply in the car. I suspect that this will be a LOT less hassle and also a lot less obnoxious than having the generator running. If you plan on camping I can not really see that you would be allowed to operate this generator in a campsite. And you have to stay in campsites, wild camping is now illegal in Iceland. The smaller items you can also charge directly from 12V mobile phone changers while driving.

"If you plan on camping I can not really see that you would be allowed to  operate this generator in a campsite. And you have to stay in  campsites, wild camping is now illegal in Iceland."

I know nothing of Iceland.  But if you have to stay in designated campsites.  
Can you pay extra to have a campsite that provides electrical power (one outlet)?  Similar to campaing in some places in U.S.


2018-3-14
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JensIR
lvl.4
Flight distance : 207631 ft
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Norway
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It is not common with electrical outlets for tent campers. I have seen that some campsites provide electrical outlets intended for campervans. In that case you would probaby have to pay whatever rate is valid for a campervan, which I assume is more than for a tent. I have no personal experience with this, as I have not camped with campervan in Iceland, only tent, and have not really needed electrical outlets. So I do not know how many of the campsites have such facilities or how available they are. The campsites in Iceland can vary quite a lot in what they offer. Some have a selection of facilities (although I think probably not as extensive as some US campsites) and could for example be operated in connection with hotels/guesthouses/restaurants etc. Many other campsites are just large open grass fields with a small building containing toilets and showers. A few really primitive ones have only a toilet and running cold water.
2018-3-14
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ancleVec
lvl.1

Hong Kong
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SUPASWIFT XG1350 INVERTER GENERATOR $699.00
60cc
13kg
max kva 1350
rated: 1.1kva
58dba (7m)
usb



GSMOON XYG1200i PureSine Inverter Portable 1200W Max - $444.50 (13.5 kg 15kg full of gas)
gas cap: 3L
(7m)/dBA: 58 (100% load)
dis: 60cc
run: 4.3hrs 100% load
aircooled
CE/GS/EPA 1200W Gas Silent Portable Generators, inverter generators Manufacturer From Jinhua China, FOB Price is USD 100.0-200.0/Box

GT2005I DIGITAL INVERTER GENERATOR 2000W - $1,195.00
excl GST
20kg
51db
5.4L - 8hrs run at %80 load



Trade Tested Digital Inverter Generator 1000W $699 (14kg)
3.6L
50cc
rated out: 900W
7 hours @rated load
54-58db
fan cooled


i have a 6500 for 6 years now i got at harbor and its still a beast i hook it directly to my panel i have a permenate connection on both rails i just turn off the main so it doesnt back feed and kill a line man and flip 2 breakers i installed on the bottom of the panel plug this 220 line into the generator and give it a pull mine is hooked to my 500 gallon propane tank so if the power goes out its flip 3 breakers and 1 pull i live in tornado alley we lose power alot and its awesome

2018-8-1
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Starlight Power
lvl.1

United States
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Honda generator is famous generator and it also has a good performance and quality. I also have a small generator set with Weichai genset 24kwopen type 3 phase 4 wire. 24V DC Weichai diesel generator set 20KW.jpg
2018-8-16
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HedgeTrimmer
Captain
United States
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Starlight Power Posted at 2018-8-16 18:49
Honda generator is famous generator and it also has a good performance and quality. I also have a small generator set with Weichai genset 24kwopen type 3 phase 4 wire. 24V DC[view_image][view_image]

24kwopen type 3 phase 4 wire. 24V DC


Summary, complete overkill for what OP is looking for.

2018-8-16
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Giovanni6
New

India
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If you want to change your 240V generator with inverter generator then you find lot of good options available. You have to check all options that suits you and read that inverter review. I found a site inverterreview.com provide valuable information on different brand inverters.
2019-2-20
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zergurush
lvl.1

Sweden
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Hello Silverhammer,

I'm sorry but I can't open your other topic, it seems removed.

As for your questions:

1. Yeah, seems a good option to pick
2. Probably you may need some cables to use it properly
3. If your plans to get and use generator at home, if you think you may fail to sell it or something else, then I advise you to read this guide and pick the suitable one. As for what I heard, Generac seems one of the stable brands
4. Usually, 1-3h should be enough to fully charge, but it depends on your batteries age, it types, capacity, and other device's specifications!

I hope it may help

Cheers,
Zergurush
2019-2-27
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zergurush
lvl.1

Sweden
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zergurush Posted at 2-27 21:11
Hello Silverhammer,

I'm sorry but I can't open your other topic, it seems removed.

<a >Generator for home</a> if you interested to extend your knowledge about generators
2019-2-27
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Bekaru MP UAV
Captain
Flight distance : 15513100 ft
South Africa
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i believe it should work - charging time might take a little bit longer - you might consider purchasing and extra charging hub/s so that you can charge multiple batteries at the same time thereby reducing the required run time of the generator
2019-2-27
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Zackery
lvl.1

India
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There are inverters that have a power switchover and a battery charger, so you can connect your generator to the inverter, the batteries to your inverter, and plug in everything to the inverter, if you do not have your generator on, power will come from the batteries, if your generator on, the inverter will automatically run your equipment straight from the generator and charge your batteries. inverterreview.com
2019-4-4
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Daniel6569
lvl.1

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I found several selections for you, I am sure you can find a suitable generator for future trips and for home. The pen link points to generators for the home, this will help you save more and your family. The second link points to portable generators for nature.
house generatorcamping generators
2019-10-14
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Daniel6569
lvl.1

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Sorry, I was unable to send the previous message correctly.
I found several selections for you, I am sure you can find a suitable generator for future trips and for home. The pen link points to generators for the home, this will help you save more and your family. The second link points to portable generators for nature.
1) https://generatoron.org/best-whole-house-generator/
2) https://reviewsforest.com/best-camping-generators/
2019-10-14
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fans48f0c1a5
First Officer
Flight distance : 1374357 ft
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A Honda 10i would do everything you need. 2 litre tank 4 to 8 hours run time 1/3rd litre to 1/2litre consumption, low noise, light weight, 900 watts output and 12volt 8 amp output. I am on my second one the first one lasted 7 years and still going but smoking and was used on average 3 hours a day. Changed oil once a month and spark plug every 800 hours. The only issue would be the weight cost on a plane. Cost £750 approx but there are cheaper copies.
2019-10-15
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GwenR
lvl.1

United States
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Not so far time ago i've bought generator for home use. Electricity in my house often switches off, but i need it to be 24/7 because i work at home as a designer. On another forum i was recommended to buy a Rockpals 300W . I purchased it, and i have no problems with it now, i forgot about troubles with electricity, hope forever I think this generator will manage with batteries.
In this review there are 9 generators, they are described, and there are pros and cons of each one of them. Maybe you'll like another one.
https://generatoron.org/best-solar-generator/
2019-10-22
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