Looking through some notes on the Ryobi 18V pack pinout, I figured I'd toss this out for discussion as it come up in relation to the ryobi 18v packs alot.
As with most 18v packs you have the usual suspects: minus for negative, plus for positive. T1 is the thermistor that the charger and the tool use to monitor the tool temperature; if it's open or shorted the charger will refuse to operate. The interesting pins on the ryobi 18v battery are the C1-C4 junctions between the cell groups. These allow the balance charger and BMS to individually read each of the cell groups to ensure they remain even between groups.
What are peoples experiences with the C1-C4 points?
As with most 18v packs you have the usual suspects: minus for negative, plus for positive. T1 is the thermistor that the charger and the tool use to monitor the tool temperature; if it's open or shorted the charger will refuse to operate. The interesting pins on the ryobi 18v battery are the C1-C4 junctions between the cell groups. These allow the balance charger and BMS to individually read each of the cell groups to ensure they remain even between groups.
What are peoples experiences with the C1-C4 points?