iRobot Roomba i6+ self emptying

In good condition, however it has been sat redundant sometime in our Cornish Home as the sand isn’t suitable and confuses the machine into thinking the dust pan is full when it’s not so hasn’t been used for a couple of years. When I plugged it in it now says it needs a new battery. it is in good condition and in full working order, just the battery life has now expired. it works and self empties under normal conditions, just not sand!

eBay