Running 14.4 Volts on HID?

I just received some replacement batteries that are 14.4 volts by
mistake (I ordered 13.2), I thought that 13.2 volts would be the
recommeneded voltage for an HID. I think over-volting would make a
Halogen run brighter (and thus make the battery life shorter).

What are the pros/cons/effects of running 14.4 on 13 watt NiteriderHID
bulb. HID's are already bright enough as-is, I don't need them any
brighter, does the higher voltage make them run longer instead???

Thanks for any input.

L.

I think over-volting would make a
Halogen run brighter (and thus make the battery life shorter).

Mistake on this statement, it's (thus make the bulb life shorter).

HID is high intensity discharge lighting usually using metal halide as the
ignited gas. Without getting to far into it higher then rated voltage will
harm the ballast and reduce the lamp life dramatically. Halogen is a form of
quartz light completely different from HID. It is similar to incandescent
light and the light will get brighter with increased voltage. The increase
is 8.5% which would not reduce the lamp life much. Halogen lamps can be
operated +- 10 %. On a halogen your battery runtime would be reduced by
about 8.5%.


wrote in message
oups.com...
I just received some replacement batteries that are 14.4 volts by
mistake (I ordered 13.2), I thought that 13.2 volts would be the
recommeneded voltage for an HID. I think over-volting would make a
Halogen run brighter (and thus make the battery life shorter).

What are the pros/cons/effects of running 14.4 on 13 watt NiteriderHID
bulb. HID's are already bright enough as-is, I don't need them any
brighter, does the higher voltage make them run longer instead???

Thanks for any input.

L.

On 9 Nov 2005 19:27:01 -0800, wrote:

I just received some replacement batteries that are 14.4 volts by
mistake (I ordered 13.2), I thought that 13.2 volts would be the
recommeneded voltage for an HID. I think over-volting would make a
Halogen run brighter (and thus make the battery life shorter).

What are the pros/cons/effects of running 14.4 on 13 watt NiteriderHID
bulb. HID's are already bright enough as-is, I don't need them any
brighter, does the higher voltage make them run longer instead???

Overvolting makes bulb life shorter (which might be by a lot, as in hook
up, poof), it makes the bulb brighter and whiter by heating it up further,
and at the higher temperature resistance will decrease by a bit, which
might be enough to counteract the larger capacity of the battery.

Jasper

wrote:

I just received some replacement batteries that are 14.4 volts by
mistake (I ordered 13.2), I thought that 13.2 volts would be the
recommeneded voltage for an HID. I think over-volting would make
a Halogen run brighter (and thus make the battery life shorter).

What are the pros/cons/effects of running 14.4 on 13 watt
NiteriderHID bulb. HID's are already bright enough as-is, I don't
need them any brighter, does the higher voltage make them run
longer instead???

An HID system includes a ballast which regulates the current to the
lamp, as well as supplying a really-high-voltage pulse to start it.
Running it on excessive voltage probably won't change the lamp
operation, but it might fry the ballast. I wouldn't do it without
checking with the manufacturer first.

--
Ray Heindl
(remove the Xs to reply)

Thanks all,

In summary, I guess it's a bad idea to over-volt an HID due to the the
ballast. I just got an RMA from the battery comany and I get to
return the goods for the right product. Worst case I would have
removed 1 of the 1.2 volt "C" cells and jumpered to get the right 13.2
volts.

Thanks again..

Louis

wrote:
I just received some replacement batteries that are 14.4 volts by
mistake (I ordered 13.2), I thought that 13.2 volts would be the
recommeneded voltage for an HID. I think over-volting would make a
Halogen run brighter (and thus make the battery life shorter).

I don't know if this applies to all HIDs but Lumicycle's can be used with
14.8 volts. Looks like the same lamps are used for both their 13.2 and
14.8 battery options.

See http://www.lumicycle.com/Product/pro...DELIION&dep=48

and http://www.lumicycle.com/Pages/CMS.aspx?MIS=39

~PB