The Off-Topic Thread

[B.L.Z.BUB]

Surprisingly good, for dubstep

http://youtu.be/rnGY07Hlxcs

[Willis]

Needs a bit more atmosphere if it's going to get my ears' attention.

 

But then my ears are picky c**ts

[Willis]

Lemon Lime Bit easier on the ears I think.

[Willis]

Another good chill out song. Multifarious

[rian]

Okay nerds, help me out here. My motorbike runs a 35w headlight off a 3Ah battery, but the problem is that it takes about 2 minutes to completely flatten a charged* battery.

 

So I did some calculations: a 35w globe at 12volts draws 2.9Amps ( ie. 35watts/12volts = 2.9Amps). The battery is a 3Ah and should therefore be able to run the headlight for about 1.03 hours (3Ah/2.9Amps = 1.03 hours).

 

Does this mean that if I was to take the battery out, sit it on a bench with 2 wires connecting the globe from the headlight, that it would power the globe for ~1 hour? Because I've tried that and it only powers it for a couple of minutes before it goes flat.

 

And yes I've tested the battery and it holds charge at 12.8volts, and when the engine is running the charging system is operating at 12.8-14volts. So everything seems fine, but the battery just dies in the arse when I put the headlight on.

 

Any suggestions? I'm taking the battery to get it tested tomorrow. Is it possible that the battery could hold 12.8volts of charge but have little or no amps?

 

 

*I'm guessing it's fully charged after leaving it on the battery charger over night.

Edited March 23, 2012 by rian

[towe001]

At a guess i'd say at least one of the cells is stuffed.

[rian]

Wouldn't the volts be much lower if one or more of the cells was stuffed? Somewhere around 10volts or less, 12.8volts to me says that all 6 cell are still working?

 

Edit: just did some reading, apparently the voltage can stay up around 12v when one or more cells are dead. So you may be correct Rob, and it that case I'll be getting a new battery, because warranty.

Edited March 23, 2012 by rian

[towe001]

It can due to a calcium buildup on a plate in one of the cells that stops that cell from holding a charge. You can get "battery zappers". Like a battery charger, it just hits the battery with a higher then normal voltage (or is it amps, i can never remember) that'll burn off the buildup and hopefully return the battery back to normal.

 

 

Came across this just before.

 

Wasn't able to get much info apart from the ute was doing over a 100 and head on into a truck.

Makes you think

[rian]

BatteryWorld wouldn't replace my battery. It was almost dead but wasn't quite dead enough for it to be a warranty claim. So I bought an LED headlight instead, no more flat batteries.

[Jono.C]

For 100kmh.. That's not bad! Dash looks in pretty much the same spot and the motor and box doesn't look to have gone through the firewall.. But still.. Fark

[B.L.Z.BUB]

http://www.youtube.com/watch?v=AoRI89hsn0M&feature=youtube_gdata_player

 

Just watched Love the Beast. Worth the watch.

[Willis]

http://www.youtube.com/watch?v=AoRI89hsn0M&feature=youtube_gdata_player

 

Just watched Love the Beast. Worth the watch.

 

Reed, where'd you find a nice, virus, trojan and spyware free file for Love The Beast? So keen on watching it.

[towe001]

For 100kmh.. That's not bad! Dash looks in pretty much the same spot and the motor and box doesn't look to have gone through the firewall.. But still.. Fark

Yep your not wrong.

Figured out what the vehicle is ??

Just watched Love the Beast. Worth the watch.

Your not wrong. One movie/doco that you'll want to watch again.

[B.L.Z.BUB]

Yep, I hugged my car after I watched it.

Worth watching the full interview with Clarkson too.

Edited March 24, 2012 by B.L.Z.BUB

[Willis]

Yep, I hugged my car after I watched it.

Worth watching the full interview with Clarkson too.

 

Recommend a decent file/stream of it? I really want to watch