So, I have a WPII 2 which I like, I am now getting more 26650 lights including a TR-J12 which runs 2 26650s in series. I would like to be able to charge the batteries at the same time on the same charger since that should give a higher chance of them being charged the same. The problem is the WPII 2 can fit 1 26650, it cannot fit 2 of them at the same time however which would turn charging the batteries into an all day affair. What I was thinking I could do is buy a couple of these http://www.radioshack.com/product/index.jsp?productId=2062248 cut them in half and mount them at the correct spacing so that they accept a 26650 each. I would then hook the wires into nails or screws driven into the ends of a wooden dowel and those would act as dummy batteries in the WPII so there is good contact and the 26650s would charge in the cradles out of the actual charger. Does this sound to be a reasonable solution to you all?
Maybe solder leads to a magnet for quick disconnect relatively easy/cheap. Dowel also works as you mentioned
-Or-
Slick (not as cheap) way would be a dummy 18650 cell like this:
. Your idea would work but you could buy a tr006 from MF. Thats what I did. Only 12 USD
Welcome to BLF, DCX!
Would rather use the WPII, just have heard of enough issues with the xxxxFire chargers to not get one.
Also, I bet TR-006 does resistor-limited CV (or CC until OCV = 4.2) instead of proper CC/CV, which'll get cells worn out pretty quickly.
That will definitely work. I have done the same thing with 14500 batteries in a rcr123 charger. My tip is make sure you hook up the battery to the charger before you plug the charger in to make sure you don't short circuit anything or shock yourself. 
Also make sure your screws are not touching inside the dowel and make sure you measure the resistance of the screws as not all conduct electricity.
Yes, would make sure to get steel or some sort so as to be conductive. I would also replace the wires those Radio Shack cradles use, I have tons of 12ga speaker wire, I would just grab some of that and use it since it’s cheap and would definitely not hinder current flow or the charging process.
Where would I get one of those, would be easier than the dowel.
If you want the batteries to match as closely as possible without using a balancer you should charge them seperatly in the same bay of your charger as the two bays are independent and might have slightly different termination voltages and currents.
Meh, not too keen on waiting 8+ hours to charge 2 batteries, will just make sure I measure the voltage of the cells after charge before using them.
Here.
He seems to have left though. His last post was on May 3rd.
Nice, but for $30 for 2 of them I would just spend $8 more and get the Xtar SP2. Looking to do this for <$15 total, shouldn’t be hard to do.
Lemme see if I can figure something out. I'll be back in a few minutes.
Honestly, a ~18mm diameter wooden dowel, 4 screws, and the 2 charging cradles should be less than $15.
Just finished something. I'll have pics in a few min.
Ok, I don't have step by step pictures but this is fairly easy.
First start with a normal bic pen.
Then cut the clear part to 80 mm length. (If its to short that is fine)
Then take 2 hardware store springs. About 50 cents each. The ID of them has to equal the OD of the pen.
Place them around the edge of the pen and hot glue them in place. Then take some wire slide it through the body of the pen and solder it to the wire. (Or wrap it around it)
Then fill in the inside with a bunch of hot glue.
Then you have this.
Then just attach some magnets the ends of the wire and hook the magnets up to the battery.
Done. :)
Why not just use some more magnets right away?
And here it is completed.
looks good! been wanting to do something like this to my charger. Thanks for the pics