Actually, I do not write reviews but here I can not help it. The batteries have held altogether 6 weeks in a Gigaset C610A. Of these, we on vacation 2 weeks. Phone was purchased last December. Thus, already the second set battery within 8 months. Real sad ..
I will now inserting Eneloops and reclaim these batteries here. Should I get a refund as a goodwill gesture, I'll get back here.