Hello Bob - I am forwarding your message to John Paskievitch, who might be able to answer your question. Thank you, Cheryl -------- Bob Murphy wrote: I work for the Alaska Department of Fish and Game in Port Moller and know that you folks spend time on the Alaska Peninsula maintaining your research equipment. I was wondering if you have heavy duty batteries that are still useful that you replace? We have been installing small wind turbines at our remote salmon counting locations and if you have still useful batteries that are looking to replace, we would be happy to use them. Feel free to call me at 907-486-1856. -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050