hillzofvalp
100 kW
I'm pretty sure that this supply will drop voltage.. Just not a whole lot. Test it.
Why not just stop at predefined intervals? It's very essy to set timer to allow voltage to come to rest. I don't see an issue charging a 50.4V pack with 51.4V. Arduini will shut it off completely and it will have no chance to over volt. Plus near 90% soc, won't the charge rate be like 5-15A?
Regarding monitoring the whole pack, I don't see a real danger at 90%, but I'll be careful and watch it. The best setup would be a bms.
I would have to make a voltage divider and scale a range of about 15V down to 5V for the arduini to read. Easiest way to do this? Op amp? Isn't the cell near the negative end if the pack always the lowest? Could reference lowest cell?
Why not just stop at predefined intervals? It's very essy to set timer to allow voltage to come to rest. I don't see an issue charging a 50.4V pack with 51.4V. Arduini will shut it off completely and it will have no chance to over volt. Plus near 90% soc, won't the charge rate be like 5-15A?
Regarding monitoring the whole pack, I don't see a real danger at 90%, but I'll be careful and watch it. The best setup would be a bms.
I would have to make a voltage divider and scale a range of about 15V down to 5V for the arduini to read. Easiest way to do this? Op amp? Isn't the cell near the negative end if the pack always the lowest? Could reference lowest cell?