Don’t really know if I have bad battery in both detector and wm10 remote or charger? When I plug the charger in the green light on power line comes on, when I plug the ctx battery in the green power light blinks red 2 times and green once. This repeats as long as the battery is in the charger. With the wm10 plugged into the charger I get a steady red blink on power line. The ctx battery shows about 30% charge on the detector. The detector powers up fine with the battery. The wm10 turn on also. Any way to check which is bad, charger or batteries? This is an older unit approximately 6 yrs old. Thanks