Sirius Chargers:
On the other hand, I had several radios that were stored for almost ten years. The guys at Sirius told me that the batteries would come back, but after about 15 cycles I was still only getting 225 or so from a tx pack and I just tossed it. Batteries are a lot less expensive than they used to be and I didn't want to chance it.
The Sirius Guy said I should have kept cycling it and it would have come back.