Glow Driver Batteries - Sub C

[Douglas Ames]

We've all got these things and as you know they take a set and their done, dead.
Not sure where to post this but I'm having trouble finding a replacement battery for my Du-Bro Glow Plug Driver.
It's a SANYO 1300SC (1.2V) rated @ 1300-1450 mAh.
From what I've read SANYO got bought by a Chinese firm and their new battery # is KR-1300SC.
I'd rather find something local but I can only get close to the mAh rating.

1. How critical is it to get the right mAh capacity?
2. With a higher mAh rating will the glow plug draw more current, or just last longer between charges?

I can order one, and I have no faith in the Morons at Radio Shack. Interstate has some that are close...

[Reptoid]

You can get them here.

http://www.all-battery.com/subcsizenicdrechargeablebatteryseries.aspxor  http://www.cheapbatterypacks.com/product/23/2/Elite-5000-SC.aspx

The second listing is for a new Elite 5000mAH Nimh

Higher capacity will just go longer between charges and Nimh won't develop memory like Nicd

[Steve Helmick]

I got some from Tower. What I'd like to know, is what is the reason for using a "sub-C" instead of a plain ol' C cell?  Steve

[Douglas Ames]

I got some from Tower. What I'd like to know, is what is the reason for using a "sub-C" instead of a plain ol' C cell?   Steve

Higher capacity in a smaller package I believe.   
I remember taping D cells together for my 1/2A when I was a kid, because I couldn't afford the lantern batteries.

[Tim Wescott]

1: Not very

2: The current draw of nearly anything is determined by it's own characteristics and the voltage you're putting to it.  For the most part the voltage will be the same, so the current will be the same.

(2a: it's more complicated than that, but for your purposes the differences are don't-care).

[bill bischoff]

I think the reason Ni-starters use sub-C's rather than C's is simply the weight. The heavier the battery, the more it tends to wear out the connector that holds onto the glow plug. I personally like to solder a glow clip with 18"-24" of wire right to a sub-C (could use a C or D too) so that the clip isn't supporting the weight of the battery.

Battery capacity is like fuel tank capacity. Regardless of capacity, the glow plug (or engine) is only going to use what it needs. A good source of inexpensive sub-C's is to dissect a 6 cell RC car battery pack.