Dummy CR123

[Logrus9]

I saw this at Batteryspace. It says that it can't be used in a charger (like the WF-139) so that CR123s can be charged.

http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=2708

The positive and negative have been connected together with 0 voltage and 0 resistivity
Warning: don't put the dummy cell into the charger, which will cause a short circuit

It seems like it would be would be perfect as long as it was used with another cell.

Is there something I'm missing? :thinking:

 

[Mr Happy]

Is there something I'm missing? :thinking:

I don't know. What do you think you are missing?

 

[zipplet]

A dummy cell is purely a spacer. Let me give you an example.

Say you have a light designed to take 3 lithium CR123As for a total of 9 volts. You want to go rechargeable, but the rechargeable cells you will use are 3.7V each.

If you use 2 of them (so, 7.4V) and a spacer to complete the circuit, this is good for many incan bulbs. Using 3 of them (11.1V) would blow the bulb.

 

[darkzero]

I saw this at Batteryspace. It says that it can't be used in a charger (like the WF-139) so that CR123s can be charged.


It seems like it would be would be perfect as long as it was used with another cell.

Is there something I'm missing? :thinking:

They are probably stating not to use them in chargers that charge two R123's inline since the charging voltage would be for two cells. In this type of charger, of course if you use the spacer the charger will be outputting voltage for two cells into the one cell.

With the WF-139, using a spacer with a R123 will be fine cause each compartment is made to charge one cell. Just not sure if a R123 will fit with a CR123 spacer, looks like it just barely might fit.