RV Voltages too high while charging
I have a problem and have been wrapping my head around this for a few days. I have four 100w Solar panels, and a Morningstar RJ-45 programmable charge controller wired to batteries. I have Four In...
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The ONLY way 15.3 volts would be correct absorbsion limit for a flooded lead acid battery is if that battery was calcium/calcium OR as a maximum 1.0% antimony in the positive plate and calcium in the negative plate making it a HYBRID battery making it a cruel joke for cycling.
Try and find an affordable constant current charger. You won't. Constant current is for the big-boys whose battery banks are worth more than your rig plus your house.
The formula I gave here years ago, 14.8 vdc for 5% antimonial flooded batteries @ 20c is still absolutely valid. It will NEVER become obsolete. Apply 14.8 vdc until the electrolyte in all cells starts bubbling lightly then reduce voltage to 14.0 vdc for 20 min. If the electrolyte in the cells continues to bubble instigate float maintenance voltage value.
This will bring unsulfated batteries so close to 100.00% state of charge it isn't funny. Not 98.6 percent or 104% but dead-on.
CONSTANT CURRENT is a protocol with precise and exacting requirements results and uses. Regular battery charging on a recreational vehicle is NOT ONE OF THEM.
Looks like the pocket protector crowd is feeling paranoid once again. Come up with something new or get the pink slip. This is entirely unneeded and confusing to the public. Battery merchandising is dog-eat-dog competitive. Ten minutes in an engineering space would cause the company to call in a SWAT team on me. There would be blood spatters on the walls.
Wayward engineers did not like it when I proved in public they were FOS in front of management.
But the cycle continues. If you swallow the B.S. bait and smile - fine that's YOUR issue. But for crying out loud don't represent it as holy gospel in front of other consumers. It belittles you.
Try and find an affordable constant current charger. You won't. Constant current is for the big-boys whose battery banks are worth more than your rig plus your house.
The formula I gave here years ago, 14.8 vdc for 5% antimonial flooded batteries @ 20c is still absolutely valid. It will NEVER become obsolete. Apply 14.8 vdc until the electrolyte in all cells starts bubbling lightly then reduce voltage to 14.0 vdc for 20 min. If the electrolyte in the cells continues to bubble instigate float maintenance voltage value.
This will bring unsulfated batteries so close to 100.00% state of charge it isn't funny. Not 98.6 percent or 104% but dead-on.
CONSTANT CURRENT is a protocol with precise and exacting requirements results and uses. Regular battery charging on a recreational vehicle is NOT ONE OF THEM.
Looks like the pocket protector crowd is feeling paranoid once again. Come up with something new or get the pink slip. This is entirely unneeded and confusing to the public. Battery merchandising is dog-eat-dog competitive. Ten minutes in an engineering space would cause the company to call in a SWAT team on me. There would be blood spatters on the walls.
Wayward engineers did not like it when I proved in public they were FOS in front of management.
But the cycle continues. If you swallow the B.S. bait and smile - fine that's YOUR issue. But for crying out loud don't represent it as holy gospel in front of other consumers. It belittles you.
