Battery Question, Again
Folks I come to you, hat in hand again to try to help me understand what is going on with my batteries. I have four 6 volt batteries in my camper. I bought new batteries in September last year. I brou...
Forum Discussion
Do not believe the marketing.
Your Noco is NO genius, and 7.2 amps is a hideously small rate for four 6v GC-2s.
HOw long after you hook it up does it stay on before is says they batteries are full?
Determining 80% by voltage is unwise, even if rested, especially since you have no idea how close to fully charged you are able to get them.
A regular powermax is not going to hold them at 14.6v for long enough.The Noco likely does not ever go to 14.6v, and if it does, not for long.
And if your batteries are sulfated, which is likely, as they likey have never been fully charged, you are going to need to hold them at 14.8v for several hours, until amperage tapers to perhaps 3.5, and then get them up to as high as 16.2v until specifi gravity rises to the 1.275 range.
The OTC 4619 is a turket baster style glass hydrometer with a thermometer twhich will say how much to add or subtract from the reading depending on electrolyte temperature.
Unless your Noco is getting the batteries upto 16 volts or so during its restoration mumbojumbo magically marketed 37th charging stage, you will need to achieve 16v at the battery terminals by another method, to restore the capacity to the maximum potential remaining capacity of those batteries.
But if you do not, and just accept them for what they are now, they will continue to lose capacity at an increasing rate.
But you might still get a few years out of them and this 'could' be good enough.
Your Noco is NO genius, and 7.2 amps is a hideously small rate for four 6v GC-2s.
HOw long after you hook it up does it stay on before is says they batteries are full?
Determining 80% by voltage is unwise, even if rested, especially since you have no idea how close to fully charged you are able to get them.
A regular powermax is not going to hold them at 14.6v for long enough.The Noco likely does not ever go to 14.6v, and if it does, not for long.
And if your batteries are sulfated, which is likely, as they likey have never been fully charged, you are going to need to hold them at 14.8v for several hours, until amperage tapers to perhaps 3.5, and then get them up to as high as 16.2v until specifi gravity rises to the 1.275 range.
The OTC 4619 is a turket baster style glass hydrometer with a thermometer twhich will say how much to add or subtract from the reading depending on electrolyte temperature.
Unless your Noco is getting the batteries upto 16 volts or so during its restoration mumbojumbo magically marketed 37th charging stage, you will need to achieve 16v at the battery terminals by another method, to restore the capacity to the maximum potential remaining capacity of those batteries.
But if you do not, and just accept them for what they are now, they will continue to lose capacity at an increasing rate.
But you might still get a few years out of them and this 'could' be good enough.
