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Deleted member 9967
Guest
Ok so I top balanced my cells. [Go to beginners section to learn how] months ago.
They all topped out at 3.650 volts each.
I let them rest a day or two and then started to use them. They went down to about 20% or 3.2 volts each cell or 25.60 volts total [for an 8 cell 24 volts system].
I charged them up to about 80% or 26.6 volts total. After a few hours rest the cells were within 0.001 volts of each other at 3.325.
I have done this a few more times.
I then decided to charge them up to 28.2 volts. I knew how many amps I had used and so knew about how long it would take to charge them up etc.
Well after a number of hours the coulomb meter said they were full. But the voltage was still at 27.14 volts. It was not moving.
I let it sit a bit longer knowing that it would not go too high on the voltage because it was preset to 28.2
So I felt safe.
However after three more hours of putting in 10 amps per hour when the amp meter said it was already full. I began to get worried.
I left it running a little longer thinking that maybe the coulomb meter was not working or something.
But even after four more hours. The voltage never went about 27.14 and the amps were still saying 10 amps were going into the cells even though all the meters said they were full.
After 7 hours of putting in 10 amps per hour when the amp meter said it was of amps, the full the voltage never changed from 27.14 volts.
So is this normal?
Is something wrong some place?
Can you put in too many amps even when the voltage reads all is ok?
Anyone have a clue as to what is happening here?
Thank you
They all topped out at 3.650 volts each.
I let them rest a day or two and then started to use them. They went down to about 20% or 3.2 volts each cell or 25.60 volts total [for an 8 cell 24 volts system].
I charged them up to about 80% or 26.6 volts total. After a few hours rest the cells were within 0.001 volts of each other at 3.325.
I have done this a few more times.
I then decided to charge them up to 28.2 volts. I knew how many amps I had used and so knew about how long it would take to charge them up etc.
Well after a number of hours the coulomb meter said they were full. But the voltage was still at 27.14 volts. It was not moving.
I let it sit a bit longer knowing that it would not go too high on the voltage because it was preset to 28.2
So I felt safe.
However after three more hours of putting in 10 amps per hour when the amp meter said it was already full. I began to get worried.
I left it running a little longer thinking that maybe the coulomb meter was not working or something.
But even after four more hours. The voltage never went about 27.14 and the amps were still saying 10 amps were going into the cells even though all the meters said they were full.
After 7 hours of putting in 10 amps per hour when the amp meter said it was of amps, the full the voltage never changed from 27.14 volts.
So is this normal?
Is something wrong some place?
Can you put in too many amps even when the voltage reads all is ok?
Anyone have a clue as to what is happening here?
Thank you