So yesterday my MP-40 AGM came to my home and I really wanted to try it out.So after charging the battery for 20 minutes,I put it into the gun and after pressing the trigger I heard a really faint sound.And that was it.After that point the battery just won't charge.I had it charging for 12 Hrs(as the manual says)and it wasn't hot at all!The charger on the other hand was hot as h*ll!I know I made a stupid mistake on my part but there must be a fix or something...