Last Spring I bought the Ryobi drill/tool light combo wih two lithium batteries. I'm retired and did use the drill into the Summer for some small jobs. The batteries have sat in my heated crawlspace for at least seven months and when I checked their status the indicator showed midrange capacity. Today I decided to charge both batteries and there were problems. The first one started to charge fine and then registered defective on the charger indicator lights. The second battery lasted ten minutes and did the same thing. I ran the batteries down and tried again, this time they lasted the entire half hour and indicatd a successful charge. I believe it was wrong to let them sit for so long even though lithium ion batteries are supposed to have a long shelf life. I will charge these batteries at least once every two months wheter or not I use them just to be on the safe side.
No announcement yet.
Charge those Lithiums!