Rechargable battery pack for PM4 monitors. Charge by connecting PM4 to PC with USB cable.
** Please note: The PM4 can also take two D cell batteries in place of the rechargeable battery pack **
Posted by Ken Matts on 24th May 2018
The rechargeable battery pack solved our immediate problem by replacing two D cell batteries that were not working at all well because of an intermittent charge. As soon as we installed the rechargeable pack, the computer worked perfectly
Posted by Unknown on 26th Apr 2016
Replacement of my old battery was easy with this product.
Posted by Wilson mp on 19th Jan 2015
Prompt Service very fair price.