MANUALS ARE WRITTEN BY PEOPLE WHO THINK...
Boondocking means Boondocks, the place they end up at when they take a wrong turn in the country.
Their brains are glued tight to the idea that their batteries are welded solid to a power pole connection.
Discharge the batteries, Yeah! Then recharge using gentle current FOR AS LONG AS IT TAKES. Power is available 24/7 in their brainless little world.
If I made batteries and sold them I would insist they be babied to the max. It would sure make my batteries look good. RECHARGE BATTERY BEFORE STARTING ENGINE OR WARRANTY IS VOID decals belong in the same category.
I don't live in an ideal world nor vacation in the Waikiki Hilton. Ask 50 lead acid battery engineers if they "Boondock" and to a man they will answer "Huh? You nuts?"
I will say this again and again. I REFUSE TO SPEND THREE HUNDRED DOLLARS IN ORDER TO GAIN SIX WEEKS OF EXTRA BATTERY LIFE. Or three weeks, or whatever. It's chasing nickles with dollars. Not exactly smart.
Oooooooooooo it'll burn up the battery!
Somwhere deep inside a 160 or 270 ampere alternator is a mystic clandestine circuit that detects and automatically adjusts (limits) current to baby hyper-sensitive batteries. You can read the Appendix of Snow White, or The Three Little Pigs to verify this.
Instead of GUESSING, do your own tests. By cell temperature verification and physical observation (cell electrolyte electrolysis) I'd LOVE to hear from anyone that can show me a 14.8 voltage limited charge rate at 35C temp that would "damage" a battery. I have too much experience with this, including longevity proof to fall for nonsensical assumptions.
NO! 14.8 volts is NOT maintained for the entire charge cycle. I scream INTERMATIC TIMER and all I hear is an echo. It takes ONE SINGLE SOLITARY TIME to establish how many minutes it takes to reach the point of 2 bubbles per second. The timing is repeated by brain memory forever after. So what if it's five minutes, fifteen minutes too much? Think the battery is going to overheat or blow up?
Ninety five percent of corporate battery plant engineers operate 100% by ROTE (look the word up).
By circling them, biting them in the ass, and solving their "unsolvable" dilemmas, I made a sizeable chunk of change in thirty years.
So when these folks come out with "mandatory" theoretical limits for consumers, I laugh. 99.9% is theoretical ROTE. Yes, a soft charge rate will indeed afford increased battery life. But they haven't the faintest idea as to how much because they have never done the testing. Ask a "battery engineer" what the ideal alternator charge rate is for an automotive environment as you will hear "But but but that's DIFFERENT!". Facts are They Do Not Know. They bombast with bluster.
And people have little choice but to believe all this.
BATTERY MUST BE RECHARGED BEFORE STARTING ENGINE OR ALTERNATOR WARRANTY IS VOID