I have a very good deal for someone who uses 240 V ac power. I bought four of these tenders from a supplier that was going out of business and it turns out that one of them was for 240 V and 50-69 Hz service. I initially removed the plug to see if I could adapt this to 120 volt service, but it was more expensive to get the necessary transformer and I decided to use another approach.
If you have $20 plus shipping and can install a two wire plug, the unit is yours. Normal retail for this device is between $55 and $45 plus shipping. BTW, I use the other three on Fieros in storage and really like how it keeps the Optima batteries charged and ready to go. This sale includes the "smart" charging unit, ring terminal ends, and standard jaws clamp terminals. I will either post pictures or e-mail them to anyone that is actually interested in buying this "smart" charger.