Cellphone. How Much Power for a Mobile, Marine, and Off-Grid Electrical System?
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- Опубліковано 8 лип 2024
- This video will teach you how to calculate how much power your phone uses in a mobile, marine, and off-grid electrical system.
This is episode 2.2 in our Electrical System Sizing Playlist in the EXPLORIST.life Academy.
*➤Blog Post * explorist.life/calculating-cell-phone-power-consumption/
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00:00 Introduction
01:20 How much power does a phone use?
04:29 Discussion Break!
05:02 How many times are you recharging your phone per day?
06:11 How does a phone battery compare to a house battery? - Авто та транспорт
*Visit academy.EXPLORIST.life to experience every lesson, ad-free.* Follow along with a lesson plan, quizzes, and chat with other members. In the academy, you don't have to wait until every Sunday to watch the videos and read the articles; they will simply be published once we are finished.
➤Blog Post: explorist.life/calculating-cell-phone-power-consumption/
*➤ Join the EXPLORIST.life Academy:* academy.explorist.life
*➤ Shop the EXPLORIST.life Store:* shop.explorist.life
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For the very first time, today I’ll be seeing patients all day whilst AI writes the chart note for me…all in my from my van. (I have been manifesting this moment for about a decade). The cell phone and laptop videos were very helpful to calculate that my 24v Explorist system will last on a sunny day here in the desert. I have 14” MacBook Pro (69.6 watt hours) and iPhone 14 Plus (16.68 watt hours). Cheers.
Samsung Galaxy S21+
4.66Ah
3.6V
16.78Wh
Usage is 1.5 days between charge.
12.58Wh/day
Another good video for you would be one on the Wakespeed WS-500 regulator.
Thanks! I do believe we have an episode of that already on the schedule for the alternator charging chapter/playlist of this academy.
I've been subscribed for a while and really like your videos! I;ve also been working on my solar setup aboard my 40' Marine Trader trawler for years now, and plan on updating it soon. Are you planning on any marine liveaboard installations in the near future? ...or would you like to do a ' this old boat marine solar setup' on mine ? :)
This academy is going to focus on ALL of the basics so that people can learn how to install an upgraded mobile, marine, or off-grid electrical system in whatever project they have.
Im still going through your playlist...but do you have one on an conventional oven, air conditioner, and electric heater? Or is it the same process? Also concerning the phone or other USB devices, if i were to use a multiple usb outlet and plug in 4 devices via each usb port, would the same principle apply? Thnx!
Sorry im new, but how is it off grid when you need a 12v battery bank or battery bank in general ? Shouldn't off grid mean no battery bank? Thnx!
Fairphone 4: Nominal capacity: 3905 mAh/15,03 Wh, Nominal voltage: 3.85V
I use around 70% of the capacity each day and recharge it once every day.
iphone 12 mini. 2227 mAh / 1000 = 2.227 Ah x 3.6 volts = 8.01 Wh. Currently charge once a day with moderate usage. battery health= 85%. When batter health was above 95% i would charge every other day. When battery health was ~90% i would get 1.5 days use. Wasd a very linear decline.
My desktop computer uses ~13 amps when running it through a Victron 12/120/3000 multiplus measured via a BMV-712. The amps fluctuate between 12 and 15 amps when watching movies from the PC. It is run from a 500 watt power supply but is uses an AMD processor with onboard GPU.
Google Pixel 7 Pro
Battery model # GMF5Z
4926 mAh
18.6 Wh
3.85 Volts
Pixel 4a
Capacity: 3140mAh
Voltage: 3.87V
12.06Wh
To your measurement attempts: last year some magazine in Germany tested many of these power meters. It showed there is a common flaw that all measure poorly on small consumption - some did not show any result below 4.5W 🤨
Perhaps search for a test of these meters and chose one that also works on small loads.
The workaround taught in this video w/ the battery capacity usage works well and negates the need for a meter. The meter used does work for loads smaller than 4.5W though.
@@EXPLORISTlife OK it's fine. Want to mark: Some year ago I went through the house with a power meter to find unmarked consumption. In the livingroom we have a multi outlet with several chargers connected. Each charger consumed between 0.5 - but more 1W constantly while idle. So in a tight environment with battery power the idle power could be significant. My advice - place a switch in front for idle time.
Pixel 8
4.5 amp hrs battery x 3.8V = 17.1 watt hrs
SAMSUNG 2-23 ULTRA: BATTERY 4,855 ACTUAL MAH, 10VOLTS DC, 4.5 AMPS.
Nate, I'm not happy with that.
- on one side these are not so large amounts.
- on the other hand, the chargers and the charging have significant losses - I assume at least 10% - better 20%.
- last not least the chargers themselves have an internal power consumption. Some years ago I bought some 12V USB (2A) outlets. Those had an idle power consumption of some 40mA. For me that's huge assuming it running all day. Perhaps they are better nowadays. Please check on your equipment in the van or in the storage what consumption you will find.
If you follow the instructions in the video, you will get a result that is close enough to accurate for performing a power audit. We don't need clinically accurate. Close enough is good enough here.
Thinking it will be more efficient to have a 12v aux cigarette lighter socket with a car phone charger pluged into that. As long as its circuit is regulating 12v to 5v efficiently.
The source voltage before any conversions doesn't affect any of our equations and understanding for this lesson. In the spirit of keeping on topic, what results did you get for your phone?
@@EXPLORISTlifemy apologies I thought you mentioned losses from an inverter at the end of the video, that's why I was hinting at direct DC to DC charging would be more efficient.
My phone has a 4035 mAh battery in it and it gets charged 1.25 times a day depending if I'm at work or not.
Great! Thanks for the additional context. We will cover inverter losses later in this academy, but for basic understanding of power audits and teaching how much power they can anticipate using on a day to day basis, we need to keep it simple and omit that concept for now. Also, for off-grid stationary applications like tiny houses and off-grid cabins, those usually don't have any 12V circuits.
@@EXPLORISTlife good point with the tiny houses. I'm only planning on 200ah for my van. But if I was going bigger I think like what Will says, go with 24v or even 48v just for the ease of wiring.
We've covered 12v vs 24v vs 48v systems in previous videos and will cover it again in more depth later in this academy, but we generally recommend 12V for systems with 3000w of inverting power or less, 24V for 3000w to 5000w, and 48V for anything larger than that and we have all of those appropriate voltages in the systems we have available in our store: shop.explorist.life
A lot of information, hehehe maybe a little too much for me.
Well, thanks for tuning in anyway. 🤷♂️🤣👍
promo sm 🔥
First: AFAIK all smartphones have 3.7V batteries.
This should be verified on a case-by-case basis.