onehundred80,
I know it should be ok to ship these batteries but when I received them (purchased them on eBay) they were in a electronic clear/blue bag stamped "Electronic Device". Of course I didn't save the bag since I was going to install the batteries in my non-working siren. When I opened the siren I found that the batteries leaked and destroyed the circuit board so I didn't need the batteries. I will give them away and provide free shipping to anyone living in the lower 48 states. PM me if you want the batteries. Yes, the batteries are Ni-MH and not Ni-cad.