A: I haven't had this problem. Do you keep them always plugged in and charging, even in the winter?
A: On this issue, please reach out to DEWALT customer service at WECARE@sbdinc.com so that we may work together.
A: Hi Lynn, the BLACK+DECKER 20V and 40V are not compatible.
A: This battery is a 40V, 2.0Ah. Is a bigger Ah than the 1.5 but is the same design line.
A: Press the state of charge indicator button on the battery. The three LEDs will illuminate indicating the percent of charge in the battery. See chart in figure A. on the manual for details. Examples are No lights <18% One light on 18% - 45% 2 lights on 45% - 72% Three lights on 72% - 100%