This seems odd to me, but maybe it's a simple explanation. My previous battery didn't have a switch. Separate charge and discharge connectors. My new battery also has separate charge and discharge connectors, but has an on/off switch as well. I usually check the charging progress by viewing the voltage display on my cycle analyst.
I have my charger set to 57.75V to charge to ~90% on my 14S pack.
Here's what I observe with the new battery:
If the battery is off (CA off), and I plug the charger in, the CA comes on and displays the voltage, from the discharge conductors. The battery will charge until the charger cuts out, presumably at 57.75V. If I unplug the charger, and turn on the battery, the CA shows 57.2V.
I have not checked the accuracy of the CA voltage display yet, however, when the charger cuts out, as described above, and I turn on the battery, with the charger still plugged in, the display voltage drops from the 57.75V cutoff voltage, down to 57.2V, AND the charger will kick on. With this behavior, it looks like I should always charge with the battery switch turned on. I'm also guessing that some of these behaviors may be unique to the type of BMS used.
Any thoughts on what's going on, and whether the battery should be on or off during charging?
I have my charger set to 57.75V to charge to ~90% on my 14S pack.
Here's what I observe with the new battery:
If the battery is off (CA off), and I plug the charger in, the CA comes on and displays the voltage, from the discharge conductors. The battery will charge until the charger cuts out, presumably at 57.75V. If I unplug the charger, and turn on the battery, the CA shows 57.2V.
I have not checked the accuracy of the CA voltage display yet, however, when the charger cuts out, as described above, and I turn on the battery, with the charger still plugged in, the display voltage drops from the 57.75V cutoff voltage, down to 57.2V, AND the charger will kick on. With this behavior, it looks like I should always charge with the battery switch turned on. I'm also guessing that some of these behaviors may be unique to the type of BMS used.
Any thoughts on what's going on, and whether the battery should be on or off during charging?