I chose a 36-amp Megawatt, micrometer dial 10 turn pot for absorbsion voltage adjustment, 6 hour intermatic Spring wound timer and CheapoWatt 350 watt stacked on top of the Megawatt set to be a high amperage capable floater also adjustable with a micrometer dial 10 turn pot.
The Mega pushes 43 amps without breathing hard
When the timer runs down it leaves the Cheapo still running at float. The cheapo can handle a 28-amp hotel load without blinking at 13.5 or lower float voltages.
I realize a temp derate Lifeline Style would need to be SOFTWARE DRIVEN. It isn't going to happen.
Maybe with my free time I should construct a sign.
LIFELINE BATTERY USERS
PULL OVER IMMEDIATELY AND SHUT OFF THE IGNITION
YOU ARE KILLING YOUR BATTERY
Don't need a steenking fartcharger endlessly cycling the battery when a teensy float current capability is overwhelmed. Needless cycling is indeed a battery premature aging phenomenon.
When I open the front door and a blast furnace singes my nose hair or freezes my earlobes I know it's time to stop, right-face, and spend four seconds resetting the micrometer dials. A dual pole dual throw relay is used to manually over ride the 55 amp fartcharger which now is VERY seldom used. That whole-lotta float amperage keeps me in my Laz E Boy.
Bored people complain bitterly about occasional twisting of a dial because it screws up their free time working on PhD grade crossword puzzles.
A software EPROM driver would be best developed in India.
I have an ex much like the.Lifeline manual regarding social engagements, dress-codes, social etiquette and new furniture every week.