I have a customer that has the same issue with the charging pin that has become disconnected. It is out of warranty and URC would like $210 to upgrade them to a 880. One post discussed purchasing a extra battery and wall charger for a inexpensive fix. Does anyone know what type of wall charger would charge just the bare battery so it can be swapped in and out of the remote? Any answers into how this would work would be greatly appreciated. Thanks