A123 Termination Voltage
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A123 Termination Voltage
Hey guys,
I have a 2300mah A123 battery and Iuse the FMA Multi charger and use the universal 3-wire cell tap. I always balance charge using the accurate setting.Here is my problem:
When I put the battery on I check individual cell voltages. They are exactly the same....3.2something. After a few seconds, the Balancer Status screen shows 0% and 99% and stays that way the entire charge routine; it always does this.
I go back to the individual cell voltage screen andwatch both cell voltages come up almost simultaneously. One jumps...then the other...back and forth. Except when I get towards the top of the charge. Then cell 2 (where the balancer is showing 100%) jumps one thousandth of a volt about each second until it peaks voltage at 3.651. Cell 1 (where the balancer is still showing 0%) hardly moves. Maybe it will creep a little bit, but since cell 2 is peaked out the charger slows waaay down and is only charging at about 100ma sometimes 75ma....basically, nothing is going to cell1 and cell 2 is getting 75ma until the charger basically times out. Cell 1 voltage only gets to 3.362 plus or minus.
I have tried pulling1000 mah off the battery and then charging back up to see if that made a difference but I pretty much get the same results. Also, same results if I go through my switch port or pull the battery and charge directly. Crazy..
I have a 1100mah A123 battery and that charges fine. The balancer shows different percentages and the voltages top off exactly the same!
Any thoughts?
Thanks,
Tom
I have a 2300mah A123 battery and Iuse the FMA Multi charger and use the universal 3-wire cell tap. I always balance charge using the accurate setting.Here is my problem:
When I put the battery on I check individual cell voltages. They are exactly the same....3.2something. After a few seconds, the Balancer Status screen shows 0% and 99% and stays that way the entire charge routine; it always does this.
I go back to the individual cell voltage screen andwatch both cell voltages come up almost simultaneously. One jumps...then the other...back and forth. Except when I get towards the top of the charge. Then cell 2 (where the balancer is showing 100%) jumps one thousandth of a volt about each second until it peaks voltage at 3.651. Cell 1 (where the balancer is still showing 0%) hardly moves. Maybe it will creep a little bit, but since cell 2 is peaked out the charger slows waaay down and is only charging at about 100ma sometimes 75ma....basically, nothing is going to cell1 and cell 2 is getting 75ma until the charger basically times out. Cell 1 voltage only gets to 3.362 plus or minus.
I have tried pulling1000 mah off the battery and then charging back up to see if that made a difference but I pretty much get the same results. Also, same results if I go through my switch port or pull the battery and charge directly. Crazy..
I have a 1100mah A123 battery and that charges fine. The balancer shows different percentages and the voltages top off exactly the same!
Any thoughts?
Thanks,
Tom
#2
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Join Date: Jan 2007
Location: Waretown, NJ NJ
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RE: A123 Termination Voltage
Tom:
Contact CellPro at www.fmadirect.com They provide excellent customer service and will answer your question.
Capt Lou
Contact CellPro at www.fmadirect.com They provide excellent customer service and will answer your question.
Capt Lou