August 29th, 2010, 07:47 PM | #1 |
ninjette.org newbie
Name: Terry
Location: Scarborough, ON
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12V Socket - Max power output?
Hey folks,
Hope this is the right forum to be posting this under; I just had a 12V socket installed on my '10 Ninja, so that I could charge my GPS, phone, etc. Do kind of wish I'd gone the relay/switch route, so as to avoid unnecessarily draining my battery if I forget to unplug something, but shouldn't be too much of an issue. Now my question is, being that the socket is wired directly to the battery (with a 15A fuse on the positive wire), what would theoretically be the most output I can expect from this socket? i.e. would I be able to have my laptop (or netbook) charging while I'm riding somewhere? I'm not very electrically-inclined, so don't want to risk blowing something up or killing my battery. |
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August 29th, 2010, 08:14 PM | #2 |
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Check out this thread, linked from the main DIY sticky at the top of the tech section. Basically, the bike has a little less than 100 watts of "extra" charging capacity. So if you add on any electrical device that takes more than that, the bike's alternator will not be able to recharge the battery at the same rate, and eventually it will leave the bike in a not so happy state.
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August 29th, 2010, 08:34 PM | #3 | |
ninjette.org newbie
Name: Terry
Location: Scarborough, ON
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Quote:
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August 29th, 2010, 09:39 PM | #4 |
Small Bike Abuser
Name: Stevo
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Your laptop watt/amp load will be your deciding factor, I use a 1amp fuse on my sockets and run a Battery Tender though the plug, charge my cell phone, power my GPS, with a 15a fuse you are probably about 3X over what you need to charge your laptop??
A 1Amp Fuse @12v will give you 12w of power A 2Amp Fuse @12v will give you 24w of power A 3Amp Fuse @12v will give you 36w of power A 4Amp Fuse @12v will give you 48w of power 15A circuit @ 12v is theoretically capable of making 180w of power EDIT: I went down the wrong road above, what I am tyring to say is...get your fuse closer to the load you need, it's safer that way
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August 29th, 2010, 10:53 PM | #5 |
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The 15 amp fuse shouldn't necessarily be tied to what you plan to put on the end of it, it should be related to the size/gauge/quality of the wire that it is installed in between the power source and the power drain. If it is 15 amp capable wire, all is well. But the poster above also has a good point, if you do actually install something on the end of that lead that draws the full 15 amps, it would be drawing more watts than would be wise from your electrical system in the first place.
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August 30th, 2010, 12:19 AM | #6 | |
CPT Falcon
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Quote:
BTW, I like your sig. I need to show it to one of my old coworkers who insisted that all scooters, even 250-500cc 3-wheeled Piaggios, were "faggy" (before South Park changed the 2-wheel definition!). You might wanna change that to "you are"/"you're" "a poser," though. Last futzed with by CZroe; August 30th, 2010 at 10:03 AM. |
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August 30th, 2010, 03:46 AM | #7 | |
Small Bike Abuser
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Quote:
Originally it was going to read.. "If you are "Too Cool" to be seen on a scooter...you're a Poser and have Gender Issues"
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August 30th, 2010, 04:12 AM | #8 |
ninjette.org certified postwhore
Name: Sam
Location: Northern Virginia
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I'm late to this thread, but if you want to learn to do this electrical "stuff", then check out this:
http://www.the12volt.com/ohm/ohmslaw.asp |
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August 30th, 2010, 07:40 AM | #9 |
ninjette.org newbie
Name: Terry
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Hmm, good point regarding the power draw... I will change my fuse to something lower, maybe a 10A or even lower. I'd rather pop a fuse than overtax my battery and electrical system.
Now that I think of it, I believe most of the fuses in the bike, for lighting etc, are 10A, no? |
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September 2nd, 2010, 04:07 PM | #10 |
ninjette.org sage
Name: Jon
Location: Usa
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with the 15A fuse you can easily use a good 220W when riding the bike.
Your alternator is producing 19A of current at 5000RPM, then the headlight comes in using up about 4.5 amps/light and the CPU taillight is probably there next with much less power arround 500 mA consumption. |
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September 2nd, 2010, 04:08 PM | #11 | |
ninjette.org sage
Name: Jon
Location: Usa
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Quote:
This site is the best. IMHO. http://www.allaboutcircuits.com/ |
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September 2nd, 2010, 04:15 PM | #12 |
Join Date: Nov 2008 Posts: Too much.
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September 2nd, 2010, 04:58 PM | #13 |
ninjette.org certified postwhore
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September 2nd, 2010, 05:16 PM | #14 |
ninjette.org sage
Name: Jon
Location: Usa
Join Date: Jan 2010 Motorcycle(s): magHitVE Posts: 649
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ah you quoted me on that one before i edited it -- I hadn't checked the alternator output rating before commenting, my apologies.
there are many kinds of circuit protection devices, time delay fuses, slow burning, circuit breakers, ect.. would don't want to be drawing more current than the maximum that can be supplied, in any case. you would probably risk burning the diodes on the alternators output.. 10A sounds like the ideal fuse for our ninjette. I have a 20A Fuse to my horn because it draws 18 amps. The ideal circuit should have a protection factor of 25%, like in our homes, your breaker is 15A rated but your wires are gauged for 12A |
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September 2nd, 2010, 05:19 PM | #15 | |
ninjette.org certified postwhore
Name: Sam
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Quote:
Boy, I bet your speed really drops off, when you blow that HORN!!! |
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September 12th, 2010, 07:55 PM | #16 |
ninjette.org member
Name: Roman
Location: London, UK
Join Date: Aug 2010 Motorcycle(s): Ninja 250r (2009) Posts: 67
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Where did you buy the socket? - Can you please post photos of the installation or installed socket?
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