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MacBook Solar Powered Laptop System
100% eco-friendly, zero-emissions computing! This is a tour of the solar power system I engineered for charging and powering my Apple MacBook laptop as well as other devices. (Nokia N800 internet tablet, cell phones, lights, etc) I have employed 12 solar panels wired in parallel developing around 39 watts in the sunshine. The panels are managed by a solar charge controller wired to a 655CCA 12V car battery. The battery charges all day, then is brought in at night to power & charge my devices. It is capable of charging a completely dead MacBook battery as well as operating the machine under heavy load. A 400 watt DC-AC inverter is used to provide 120VAC. (household current) The inverter is capable of delivering 800 watts for short periods.
Video Rating: 4 / 5
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Try to get a DC charger for your laptop, but use the inverter for many other things, such as lamps, fans, desktops, etc.
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cool idea, but i would replace that battery with a marine battery or a deep cycle. you would get MUCH more run time out of it.
Do some research b-4 building please! thie is NOT very efficient! 12V chargers that step up voltage to 19.5V (My VAIO) is not very expensive! You can build a circuit from radio shack for about $10 that would take 24V ( two 12V batteries wired in series) down to 19.5V ( or your voltage) Use larger wire! use a wire size chart! you cant lose the V you get to wire size! Great idea, but upgrade from here! Joe
1 person doesnt like effeciancy….
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I like it
I use a small panel just to charge my netbook. I like using my netbook instead of my Macbook pro because i just surf the web and it saves electrity. it lasts 4x longer than the macbook battery
if you buy the lithium battery pack like the silver back gorilla you wont need no inverters at all like you do in the acid battery right ?
Cool!! I like it!!!
I feel like just creating a charging system for all my stuff cell phones, laptops ect all to one cord from a solar panel that ill mount.
@amnonholland1 you’re so cool
1.how long will the battery last before you’d need to recharge?
2.is it possible for 12 solar panels to generate enough energy to charge the battery and give power to laptop (via inverter ofcourse) at the same time? how many panels would be needed? how to calculate how many panels would be needed?
buy a Apple Magsafe Airline Adaptor , it might save you wasting energy through the inverter. Im thinking of doing something similar but with a powergorilla, for portability.
@kasmember17 it will be cheaper because you offset the cost off a wall charger. A solar cell that size would cost between $20-40
when will apple build a laptop that uses little power? What about low power SSD harddrives, low power processors, flash memory etc. A solar panel the size of the laptop lid will generate 5-10Watts in ambient light, which could be plenty to power a laptop considering that thermodynamically the laptop actually dosnt do any useful work (Just generates heat). I suppose solar powered laptops will only take off when low power photonic processors are introduced.
How Much did all this cost?
Solar via charge controller to solar storage battery out through voltage converter to match your laptop’s needs. Forget the inverter… wastes power.
You need the solar storage battery to be able to support the voltage converter (bump up from 12v range to 16 for MacBooks & 19-21 for PC’s).
I see (I think)!
but in the macbook charger there’s an intelligent charging controller which charges the macbook at optimal conditions
it’s complicated to build a control like that
Well I know that most laptops/macbooks are something like 19vDC, whereas standard batteries are 12v.
But surely there must be a simpler way of converting 12v DC to 19v DC (or whatever current it takes) than this elaborate set up?
I mean I like the idea of a solar power backup, but this does seem a little bit “heath robinson” to coin a phrase.
I think it’s better to use the original MacBook Charger because it has the best charge-control for the macbook battery, if you would use something directly the battery may get damaged
Question, in the laptop set up your coverting DC to AC and back to DC again.
Wouldn’t it be easier just to find a way of linking the battery straight to the laptop, rather than having all these adaptors to convert the current from one type to the other and back again?
you live in the ghetto ?
@Jakewelborn I just had a look on ebay and you can get it built for under $300 easily.
you should make it small and portable and attach it strait to your macbook so it charges on the go