This Progressive Dynamics doesn't work like that. Modern chargers, like the one in your Toyota, will start at a high rate of charge then gradually lower the charge rate till the battery is charged at which time the charger is at a maintain rate. I will most likely replace my Model 7345 with the 55TCRU and will follow-up with a post on how the install goes, etc. I have mostly been seeing the 55A version of the TCRU being offered as a stock item again see my above post. My current, or should I say No-Current Model 7345 had a rated output of 45A.

However, I did some research and learned, from a single source, that this Retrofit Model is no longer available, and it pointed me to the TCRU Series Universal Upgrade Power Converter that I mentioned in a post above. I don't know when my Load Center was retrofitted with the Model 7345 RU Electric Power Converter, just that there is a sticker inside the drop down front cover stating it was retrofitted. I don't know what the 'Charge Wizard' is, but it may be what Parallax is calling their TempAssure � system that charges the battery at a rate based on the temperature of the battery (upgrade kit is supposed to include this sensor for the battery with a 25ft cable)