is it better to leave roomba off it's base/charger or not?

Post by Gordon » January 16th, , 10:46 am

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RoombaRules wrote:Yes I can ...

Thanks Seth, but I don't think we are quite at the end. On the one hand, iRbt says:

"Occasionally exhaust the battery ...."

While, on the other hand, you are saying:

...To FULLY discharge the battery...

Link to Dayin

In my mind those actions are far from the same -- which you alluded to by indicating repeated uses of Roomba to pull out more charge.
I think what is needed here is a definition of what one means by the term "fully discharged". We know that when a Roomba is finished with its battery (exhausted it) it does so at a cut-off voltage of about 12Vdc, so appreciable charge remains in the cells. But, to me, "fully discharged" means taking cells down to zero volts. Robin has indicated that action can't safely be done in a battery of cells, and if one did it to individual cells, it would be bad for cell-chemistry.
You'll notice in iRbt's care instructions
"Long-term storage - If you will not be using the unit for an extended period of time (more than a few weeks) it is best to fully charge the battery and then remove and store it separately. ... Do not leave the battery in the unit for extended periods of time when not connected to a charger because it draws a slight current even when turned off. If left this way for more than a week the battery can run down. If left this way for many weeks, the battery can be damaged. Removing the battery from the unit will prevent this. Do not leave the battery sitting in the Rapid Charger with the Rapid Charger not plugged in to the wall."
I hope those words clarify the issue, they do for me.
---Gordon

Thanks Seth, but I don't think we are quite at the end. On the one hand, iRbt says:While, on the other hand, you are saying:In my mind those actions are far from the same -- which you alluded to by indicating repeated uses of Roomba to pull out more charge.I think what is needed here is a definition of what one means by the term "fully discharged". We know that when a Roomba is finished with its battery (exhausted it) it does so at a cut-off voltage of about 12Vdc, so appreciable charge remains in the cells. But, to me, "fully discharged" means taking cells down to zero volts. Robin has indicated that action can't safely be done in a battery of cells, and if one did it to individual cells, it would be bad for cell-chemistry.You'll notice in iRbt's care instructions where you sent me that iRobot cautions against depleting the cells of charge. Here is an excerpt from that page:"Long-term storage - If you will not be using the unit for an extended period of time (more than a few weeks) it is best to fully charge the battery and then remove and store it separately. ... Do not leave the battery in the unit for extended periods of time when not connected to a charger because it draws a slight current even when turned off. If left this way for more than a week the battery can run down. If left this way for many weeks, the battery can be damaged. Removing the battery from the unit will prevent this. Do not leave the battery sitting in the Rapid Charger with the Rapid Charger not plugged in to the wall."I hope those words clarify the issue, they do for me.---Gordon

Are their any guidelines for the Wyze vaccum to be always plugged in? I wonder if there are chances of battery degradation if its always plugged in and charging?

Hopefully their is charging cut off built in the firmware.

Can someone please comment?

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