Last April I bought a new C-15 drill (4.2 A). When I first received the drill, I charged both batteries. One charged exactly as it (seemingly) should, while the other kept blinking red. I e-mailed Festool and they indicated that it is normal and that it means it doesn't require charging. I finally used my drill enough to require charging and that same battery is charging for a while and then blinking red. The other charges and then the light stays green. Is this normal? It seems like it takes a charge, but I can't figure out why they're different?
Thanks
Eric
Thanks
Eric