Message #104354

[machine73]

Yep, the batteries build up an internal resistance the moment they are manufactured. Storing them at full charge, no charge, in extreme heat, or extreme cold will shorten battery life. Recommended storage practice is at refrigerator temps at 40% charge. You may have just gotten a battery that already had significant internal resistivity. The oldest one I have is still going well at 2 years but I don't store it fully charged.