Gassing
Do flooded wet cell batteries only produce gas when being charged? Can they be charged outdoors and then placed inside a camper for use powering fans, etc. safely?
Forum Discussion
The fit, first of all on a flooded VRB is in the fact that it is a calcium calcium battery. Compare sentencing of a calcium calcium battery to cycling duty to handing a Wall Street trader a pick & shovel. The trader may choose to merely bonk you over the head with the shovel.
The calcium calcium battery shouts "Well I'll show you!" and dies.
Evolvement of gas has a significantly higher voltage threshold with Ca/Ca. The accumulators can be maintained at + .8 higher float* with almost no gassing.
I did a painful study of Delco Voyager in the 1980's then Ca/Ca Keystone "Deep Cycle" batteries in the early 1990's.
In excess of sixty DUTs (100%) failed survival after fifty discharges to 50% state of charge. In this case "failure" meant retaining 50% amp hour capacity - a generous allowance.
The 20% DOD (80% remaining) test was terminated at 70+ cycles for failure to render payment for testing. Out of curiosity the single Ca/Ca I capacity tested rendered 90+% capacity at 20% DOD. The remainder was palletized and recycled.
*As compared to a car jar 2.75% antimony "Deep Cycle" battery. Not to be confused with a golf car or L-16 truly cyclable battery.
Evaluating appropriateness is strictly up to the user.
The calcium calcium battery shouts "Well I'll show you!" and dies.
Evolvement of gas has a significantly higher voltage threshold with Ca/Ca. The accumulators can be maintained at + .8 higher float* with almost no gassing.
I did a painful study of Delco Voyager in the 1980's then Ca/Ca Keystone "Deep Cycle" batteries in the early 1990's.
In excess of sixty DUTs (100%) failed survival after fifty discharges to 50% state of charge. In this case "failure" meant retaining 50% amp hour capacity - a generous allowance.
The 20% DOD (80% remaining) test was terminated at 70+ cycles for failure to render payment for testing. Out of curiosity the single Ca/Ca I capacity tested rendered 90+% capacity at 20% DOD. The remainder was palletized and recycled.
*As compared to a car jar 2.75% antimony "Deep Cycle" battery. Not to be confused with a golf car or L-16 truly cyclable battery.
Evaluating appropriateness is strictly up to the user.
