dc 30 collar battery?

[Iglow]

Has anybody replaced a battery in a dc 30? I had a friend give me his Astro 220 and 3 collars, 1 collar is working fine, the astro is fine but 1 collar blinks blue when charging and never stops, the other the blue light never comes on. They all sat in a drawer for 3 years or more without use.

 

[Tenntrapper]

Amazon product ASIN B002MPYVYW

 

[Lilbuckgetter]

It's not hard, disassemble it battery behind the circuit board

 

[Lilbuckgetter]

I've got dc40 done same thing and was circuit board.. take apart and test with multimeter b4 buying battery

 

[Lilbuckgetter]

Also update handheld first on laptop going to garmin web updater .com
Then connect back to PC and turn on collar, go to dog info scroll to update collar. Collar took longer than handheld for downloads. Hope this helps