Hello all. I have a BCD 396xt ( P25 Phase I) for a good 10 years. A rock of a scanner. Have always operated it with rechargeable batteries and power adapter plugged in. It stayed on as long as I wanted-sometimes for days. Occasionally I would see "illegal voltage" . Recently, I have to recharge the batteries every 12 hours or so on an external charger. The power adapter doesn't seem to be working. I purchased a replacement adaptor (proper outputs etc) but it is clearly not charging the batteries. Any ideas?