Mint Plus Turbo Charging Cradle won't function properly
Cradle and contacts are fine. Cradle circuit is nothing but a reed relay and few wires, relay closes on proximity to robot's body, therefore no voltage on contacts before robot is close to cradle.
There is a thermistor inside of battery, and mine was bad. I removed it and now I am charging the battery from my bench power supply at about 220 ma current, overnight, and it works. Probably the solution is to get a new replacement battery, but the one with the thermistor inside (OEM), easily recognized by the third wire, and all should be fine, assuming that nothing else is wrong with charging circuit or power adapter (12v/1A)
Hope this will give you some ideas of where to poke.
Once successful, please post your solution.