You need to very carefully solder some leads to
the base plate without melting the plastic. Pay attention to
the polarity. Connect the other end of the leads to the charger.
Load your AA batteries into your case. I highly
recommend a few drops of super glue on the case to make sure
it doesn't come apart if you drop it. You can always take it
apart again if you need to change the cells down the road.
Now, slide the pack on to the base plate just
as you would attach it to your radio.
IMPORTANT. Wrap the Velcro thermal resister
around the pack before powering up the charger.
Using the adjustment dial, set your charge rate
according to the meter. For example, I charge my 2500 mAh packs
at 250 mAh to 500 mAh The minimum is 250 (1/10 the capacity
for Ni-Mh) and charging at higher rates increases heat. There
is no need to "rapid" charge these batteries at 1
amp or higher though if you must, you can do it safely with
Now you have the best of both worlds. Instead
of choosing between a high-voltage or a high capacity pack you
can have a high-voltage / high capacity pack of 12V at 2500
mAh! You can buy and experiment with many different kinds of
AA batteries and you won't have to rebuild your old. battery