RE: Picture Tutorial: Swapping out your 10X / 12X batteries
Pic 3 - After taking out the 4 screws and removing the black piece of tape (with the Japanese writing underneath), and removing the top cover, this is what you will see (except they won't be Eneloop cells)
Pic 4- After removing the batteries and the attached PC board, this is what your case looks like empty. Take note of the ridge at the bottom of the case..... You'll see why in a bit.
Pic 5 - Shows the batteries removed from the case
Pic 6 - Shows the outside of the circuit board. You won't really need anything from this side, just don't short anything!
Pic 7 - This shows the inside of the board. If you can't charge your battery pack through the charging jack, it's because that little green diode looking thing is blown. 2 choices, either replace it, or if you PROMISE to never reverse the polarity when charging, just put a solid pice of wire across there and forget the diode. WARNING: The world could come to an end if you do this....at the very least you may void the warranty on your battery pack and/or radio.
Pic 8 - This shows where the leads attach to the battery. You will need to de-solder these leads from your old battery pack. Be careful not to short the wires. If you short the wires, you will blow the diode and you will have to read "Pic 7" again.
After de-soldering the old batteries, simply solder the new batteries to the same wires. Red to positive, brown to negative. If you bought the packs from me, they have long soldering tabs and may have shrink wrap around them. You will need to cut the soldering tabs down VERY short, and remove the heat shrink. The case is VERY tight and that ridge in the bottom of the case will not allow the heat shrink to stay on the battery. It will prevent the battery from seating all the way. You may also have hot-glue on the pack, just remove the glue from the two batteries on either side of the ridge at the bottom of the pack.