Chalo
100 TW
I have a battery of 104V nominal, 117.6V fully charged. I've been able to use it as a portable substitute for household power, but so far my attempts to use it as a light EV battery have hung up on the controller. I've wanted to find one that can tolerate the high voltage, but not demand more power than the battery can supply or than the amount I can use.
I recently found, and ordered, this controller:
https://www.ebay.com/itm/120V-1500W-Electric-Bicycle-E-bike-Scooter-Brushless-DC-Motor-Speed-Controller/142990552133
On poring through its description, I found two items of concern. The first is this:
And the second is this:
If this controller is set up for ten 12V SLA batteries, as I expect it to be, then the implication is that it will cut off at 105V, which is higher than my battery's nominal voltage. I have asked the seller, but have not gotten back a reply, as to what voltage triggers the "soft low-voltage" mode.
My question is this: Is it possible for an end user to lower the voltage at which these features become active, or eliminate them entirely? And if so, how? I don't even know how a motor controller senses voltage, so I don't know where to start.
I recently found, and ordered, this controller:
https://www.ebay.com/itm/120V-1500W-Electric-Bicycle-E-bike-Scooter-Brushless-DC-Motor-Speed-Controller/142990552133
On poring through its description, I found two items of concern. The first is this:
Soft Low-Voltage: When the battery voltage become lower, the current will also become lower to keep normal running. It not only protect the battery and extend the battery life, but also increase the running distance.
And the second is this:
Over voltage and low voltage protection
If this controller is set up for ten 12V SLA batteries, as I expect it to be, then the implication is that it will cut off at 105V, which is higher than my battery's nominal voltage. I have asked the seller, but have not gotten back a reply, as to what voltage triggers the "soft low-voltage" mode.
My question is this: Is it possible for an end user to lower the voltage at which these features become active, or eliminate them entirely? And if so, how? I don't even know how a motor controller senses voltage, so I don't know where to start.