Comment on Sanity check for LiFePO4 Charger Design
nilloc@discuss.tchncs.de 1 year agoIt’s just that it’s really tricky to charge the final bit because the middle 80% is such a flat voltage curve. They have a 1000x life when they’re taken care of.
Eheran@lemmy.world 1 year ago
It is in no way tricky. Simply apply a constant voltage.
nilloc@discuss.tchncs.de 1 year ago
It’s tricky to stop at the right point, because lithium iron only have a very small voltage increase between like 40% and 90% and they ramp up to full voltage right near the limit of their capacity.
Eheran@lemmy.world 1 year ago
How is it tricky? You keep the voltage constant. If the current exceeds the maximum, you first keep the current constant.