Thanks. That,s what I've been told by battery people> I've also been told that gel batteries have been a major issue in motive power applications but not so bad in stationary applications. This does not only apply to cold applications but basically all applications... I've got a customer who has a Edison system and they love it but it,s just a general warehouse. I've also been told that in a freezer application, the batteries never com up to full charge because of misreadings on the charger.