Not sure if this is a price error since they are selling for $99 on amazon, but I was looking for a few to use on my solar battery bank. I have 6 batteries and based on review one can charge 2 battery at a time, so I bought 3 to get free shipping and found coupon code "Rmn07a" from retailmenot for 5% off. Total came out to $101.80 since I’m in DE.
https://www.etrailer.co