As I cruised the aisles of my local 'Big Box' hardware store, I noticed a cordless soldering iron
hanging on a hook in a blister pack. What struck me as odd was the brand name...Weller.
I have used Weller soldering irons and guns for many years and have found them to be
very reliable and durable. So, what the heck, I bought one. I figured that if Weller makes it,
it has to be good.
I was right (for a change), it works quite well for small soldering joints. The package says "Up
to 120 solder joints with each battery charge". I have made about 100 small solder connections
with 22 and 24 guage wire to bifurcated terminals and circuit boards so far and the batteries are still up.
I paid $16 USD for it, and I think it is a bargain.
It takes 3 AA batteries, and the batteries are included (Copper Tops)
The iron heats up in about 15 seconds and cools quickly.
It is rated at 6 Watts/900 deg. F., and it comes with a 7 year warranty.
I can highly recommend this cordless iron for all the small soldering jobs around a model railroad.
Have fun.
Moose

I have one of those also,
Weller BP645
I'm soldering- ignorant and would prefer to stay that way. However, based on what I've read here and on other sites, I believe I should solder my railjoiners (I'm using Kato Unitrack). Would this be a suitable tool for that purpose?
rail joiners?>???
This tool may be a little light for rail joiners. However, since you asked, I tried it for rail joiners and soldered six of them on code 80 track. The tool worked quite well. I was surprised how well it worked for that task. However, do not expect the batteries to last as long as the light stuff I referred in my initial post.
The trick is to use very small diameter solder and flux the joint before soldering.
Have fun.
Moose