More ignition problems >:(

[Redassassin]

So I've just had my starter motor rebuilt (again ) and I've replaced the bad ignition switch with this aftermarket one:
https://www.autoelec.com.au/ssl/public_autoelec/store_v4/product_detail.asp?id=1205&cat=52 which was working perfectly for a couple of days but I tried to go and start the car this morning and the starter motor turns VERY slowly and cant start the car at all. I've got the battery on charge and am getting it tested tomorrow, but I think there's nothing wrong with the battery and i'm not really sure of what I should be looking at now in terms of this, I really don't want to go to the auto electrician as it will no doubt be an expensive job, any suggestions on what I should be looking at?

[azza1600]

Have you checked your battery leads? mainly the earth, Chryslers have a stupid short negative lead that bolts to the body on the inner guard and a strap from starter bolt to the body, I replaced my negative battery lead with one from the battery to starter motor bolt then added a couple of extra earth straps from body to engine, made a big difference to my Avenger

[JoKer]

ditto, grounding kits are worth their weight in Fused kickdown cables (Lead came loose & the next conection was my Auto kickdown cable which stopped the accelerator functioning too!

[Redassassin]

Confirmed guy's, the earth strap for the battery was f*cked, put a new one on and it's running good again, thanks for the help