Postby glyndwr1998 » Thu Aug 28, 2014 5:12 pm
Hi guys,
Thanks for the contribution....
Ok, my aim to be honest is not to extend the range to max and fully charge the cells to max, it is merely a precaution as a result of a port entail overcharge situation.
I charge the cells to 3.5v max, so once any cell in the pack gets to 3.5v the charge process stops.
All I want to try to get to is IF the cell max alarm circuit was to fail in some way, like, the maid relay sticks in the on state, then the charger cannot put too much extra capacity into the cells,
So, if the charger fails to get a signal to stop at 3.5v, then the total pack voltage is set so that the charger just goes into cv stage and cannot destroy the pack as it's already set at its target voltage....
I'm not sure if I've described what I would like to achieve correctly, but it's the best way I can think of describing what I want to achieve.
I could charge the cells to 3.7v if I wanted, I chose 3.5v to try to protect them alittle.
I hope I've explained it right.
Thanks.
Anthony