 Can my 914 run on a 14v battery?, Will it tolerate it? |
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| Rod |
 Oct 27 2010, 03:38 PM
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#1
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Senior Member  Group: Members Posts: 617 Joined: 1-January 08 From: Farnham UK Member No.: 8,526 Region Association: England  |
I'm into my hi end car audio and I have a 14v agm battery - would I be able to use this in the 914?
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| monkeyboy |
Oct 28 2010, 12:24 PM
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#2
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Senior Member Group: Members Posts: 808 Joined: 8-June 08 From: Los Angeles, Ca Member No.: 9,147 Region Association: None |
How much more power are you getting at 14v? Is it even enough to bother with?
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| Mike Bellis |
Oct 28 2010, 01:07 PM
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#3
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Resident Electrician Group: Members Posts: 8,347 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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QUOTE(monkeyboy @ Oct 28 2010, 11:24 AM)  How much more power are you getting at 14v? Is it even enough to bother with? Wattage formula: P=IxE P=Power/wattage I=Amperage/current E=Voltage So, 12V x 20 Amps = 240 Watts Peak or, 14V x 20 Amps = 280 Watts Peak It does not seem like much until you get to a larger amp. Mine for example... 12V x 80 Amps = 960 Watts peak or 14V x 80 Amps = 1120 Watts peak The peak numbers most then be multiplied by 0.707 to get RMS Wattage. So my 1120 Watts peak = 791.84 Watts RMS (Root Mean Squared) Maximum amperage can be determined (best guess) by the recommended fuse size. My Kenwood amp uses four 20 Amp fuses on the Amp itself. So It can draw a maximum of 80 Amps. This would be at clipping level, distorted right before a fuse blows. Some companies put oversize fuses (off brands) and are not reliable. The Federal Trade Commission does not regulate Car Audio the same as Home Hi-Fi. The is no regulation on Car Audio. Any Manufacturer can claim any wattage they want. The just claim it based on 20 Volts. Only name brand companies comply and rate their equipment correctly. Stay away from off brands claiming 1000 Watts of power. |
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Posts in this topic
Rod Can my 914 run on a 14v battery? Oct 27 2010, 03:38 PM
benalishhero I say you would have an amp issue though. Oct 27 2010, 03:53 PM
Rod
I say you would have an amp issue though.
No th... Oct 27 2010, 03:55 PM underthetire Don't see why not. Charging system is ~13.8 wh... Oct 27 2010, 04:12 PM Rod No, not lithium - they are sealed lead acid batte... Oct 27 2010, 04:16 PM jsayre914 I have been running dual kinetik batteries for som... Oct 27 2010, 04:31 PM Rod
I have been running dual kinetik batteries for so... Oct 27 2010, 04:43 PM jsayre914
[quote name='jsayre914' post='1387568' date='Oct ... Oct 28 2010, 12:47 PM windforfun
Don't see why not. Charging system is ~13.8 w... Oct 27 2010, 04:44 PM kg6dxn Many racers run 16 Volt dual tap batteries (12V/16... Oct 27 2010, 06:48 PM windforfun I sort of agree, but remember that your amps aren... Oct 28 2010, 01:48 PM mskala It's been a while since I've had a -4, but... Oct 28 2010, 02:31 PM Rod
It's been a while since I've had a -4, bu... Oct 28 2010, 02:53 PM jsayre914
Oh and to the other nutter with all the Phoenix ... Oct 28 2010, 03:17 PM windforfun Do you use "pi" filters to eliminate eng... Oct 28 2010, 03:01 PM Rod
Do you use "pi" filters to eliminate en... Oct 28 2010, 03:12 PM windforfun
Do you use "pi" filters to eliminate e... Oct 28 2010, 03:45 PM Rod
[quote name='Rod' post='1388009' date='Oct 28 201... Oct 28 2010, 03:55 PM windforfun
[quote name='Rod' post='1388009' date='Oct 28 20... Oct 28 2010, 04:03 PM Rod
Wow!!! Very cool!!! Got... Oct 28 2010, 04:13 PM windforfun
Wow!!! Very cool!!! Go... Oct 28 2010, 04:22 PM messix here ya go. just need to do same fab work to make ... Oct 28 2010, 03:18 PM messix here ya go. just need to do same fab work to make ... Oct 28 2010, 03:20 PM Rod
here ya go. just need to do same fab work to make... Oct 28 2010, 03:34 PM messix prolly not.
go check over on the samba and see if... Oct 28 2010, 03:36 PM stugray Rod,
"So anyone that has a cap that says it ... Oct 28 2010, 04:22 PM Rod
Rod,
"So anyone that has a cap that says it... Oct 28 2010, 04:31 PM jsayre914 :agree:
You dont need a cap, but an extra batter... Oct 28 2010, 04:35 PM Rod
:agree:
You dont need a cap, but an extra batte... Oct 28 2010, 04:39 PM windforfun I use KEFs & Tannoys at home. I just don... Oct 28 2010, 04:43 PM windforfun This is as far as I got.
Oct 28 2010, 04:45 PM kg6dxn The theory behind the "stiffening Cap" i... Oct 28 2010, 07:09 PM Cap'n Krusty Your FI control unit doesn't like either low o... Oct 28 2010, 07:14 PM windforfun Most interesting. You guys know your shit. Oct 28 2010, 07:22 PM |
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