Battery on SP3 wont charge

[Support]

The battery won't charge on my SP3. We lost the original charger, and have been using the dock we ordered with it, the machine won't charge. I have tried restarting the machine, windows updates, discharging the battery, trying a different charger (this charger lets the machine turn on, but the top right of the device gets real hot).

[#2]

You shouldn't use compatible "no brand" chargers with your machine...If it gets hot that may be a symptom of other problems, such as overcharging batteries.
Your device is still on warranty? Try contacting the store where you bought it.