Both my units use too many batteries. With brand new batteries, the display will read full battery. After maybe two weeks it’s down to one bar. It will run for a few more weeks , but a power supply is in order
Recently purchased another BP Machine from Walgreens and it will not take a power supply. Manufacturer must be in bed with the battery companies. :-) And, the new machine wears out rechargable batteries fairly fast. Next project is to design a 3D printed replacement for the batteries which will use the power supply from this old machine. I do not want to solder in a direct connection for the power supply as that would void the warranty.
Just completed this video. I haven't released it to the public yet but you can view it now. Ron BP Monitor - Power Supply Conversion ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-76Sr6DYN7T4.html The power supply is rated 1 Amp and is probably necessary due to the air compressor in the monitor.
