egam said:I check cells to see if they are 3v or higher. I get 4 cells in my hand and quickly load all four cells. Then I push the current button twice. Then all 4 go to 1000 ma quickly. The trick is you don't have to wait for the display to flash the current before you touch the current button.
If the cells are not 3v already, I precharge them with a 3.3 volt computer power supply. If they take a charge, the will be sitting at 3.3 volts. Or they may be open circuit or hot to the touch on the precharge. I set up a multimeter on quick check fixture so I can check voltage one handed.
Once a week I do something to improve my workflow.
daromer said:as egam said. I also dont shut mine off so dont have to reset it...
John said:daromer said:as egam said. I also dont shut mine off so dont have to reset it...
My oos resets the amperage setting everytime I change a cell. I am thinking of automating the changing of cells to save time, so that is a problem...
Scepterr said:Step 1 open window, Step 2 send Opus flying, Step 3 get 4S
Seriously though, no. At least not on the V2.2
owitte said:nope, default is 500mA, can't be changed without hacking the firmware or asking OPUS to change it.
owitte said:egam said:I check cells to see if they are 3v or higher. I get 4 cells in my hand and quickly load all four cells. Then I push the current button twice. Then all 4 go to 1000 ma quickly. The trick is you don't have to wait for the display to flash the current before you touch the current button.
If the cells are not 3v already, I precharge them with a 3.3 volt computer power supply. If they take a charge, the will be sitting at 3.3 volts. Or they may be open circuit or hot to the touch on the precharge. I set up a multimeter on quick check fixture so I can check voltage one handed.
Once a week I do something to improve my workflow.
I think there's no need to pre-charge them to 3V, the OPUS has a built-in kind of refresh mode for batteries with low voltage. Just put one in and watch the charge current. Even if you set it 1000mA, it'll first drop to sometimes even less than 100mA until the battery voltage rises above 3V, then the charger will apply the charge rate you set.
I'm using a self-made bank of 16 TP4056 charger PCBs and a compuer power supply to charge my batteries before testing. This way, the OPUS test always starts will fully charged batteries and switches very fast to discharge in test program.