My c70 seems to have a short somewhere that flattening the battery and when you connect battery it sparks are there any normal issues that can cause this thanks

 

so you disconnected the battery and when you went to reconnect it, you saw sparks? that's because there's an active circuit that's drawing current. How long does it take to drain the battery?

As a general overview, slow drains are usually mundane things like vanity lights not shutting off due to a sticky switch etc. For "parasitic draw" issues, you should have a current meter (best to use are "clamp meters" which simply cllamp over the battery cable to measure current). Once you see the current draw (starting point is anything over 25 mA with the key off and nothing on ) you can then start pulling fuses to see which drops the current draw. From there you can check out the various devices, lamps etc on that circuit. For bigger current drains, you may need to start pulling out relays. Unfortunately, there's several places where fuses and relays are found and on new models some of them are buried under other fuses if they are not intended to be user serviced.

There's some good vids on Youtube to give you some ideas on an approach.