[Calsonic_racer]

here a method but it may be a little time consuming.... first find directions for the external dual cell (the easiest) and instead of soddering you instead use electrical tape. that way my first ever dual cell because i had no solder at that moment but in the end the electrical tape works just fine. if you want some directions ill give it to you. first get your second battery and get 2 wires and strip the insulation off the tips both on the top and bottom. next get your microsizer and bend or take off the negative plate that holds the battery NOT THE WHOLE THING JUST THE PART WHEN IT TOUCHED THE BOTTOM OF THE BATTERY. you will need the charging plate but not the tab that touches the negative side of the battery. the reason why you do this is because if the battery in the car touches the negative tab it wont be a dual cell anymore instead an extra .2 volts which sux big ballz haha. anyway now get one of your stripped wires (preferabbly black for negative and red for positive) right now get the black wire and get a small piece of tape and tape it to the negative charge plate so they are touching and connected. next get your postive wire and tape it to the bottom of one of your batteries (thats right put the POSITIVE wire on the NEGATIVE side of the battery) if you dont understand trust me you will thank me later. WOW UR MORE THAN HALFWAY THERE. now put the battery with the wire on the bottom inside the car GENTLY so the wire wont slip out of the bottom of the battery or the wire on the negative charge plate. it wont fit all the way in so dont force it just push it in enough to get the pcb and the cover on. (preferabblly beggers cant be choosers if you want this done quick and no re-doings just put the pcb on and electrical tape it because it may take 4-10 tries to get the pcb on and the cover on w/o making the wires slip out. it may not look that good w/ the electrical tape but damn ur gettin the easiest duall cell ever. now that thats done put the car frame on and stick the 2 wires out the back window. (you might have to do a hack here and a hack there with an exacto knife to make the battery fit in and out of the fram if u want to switch covers or check on the cars. but if you got a soldering gun just solder off some plastice till there is more than enough room to fit the battery and some extra space for the taped up wires.) now that the frame on u MUST MAKE SURE YOU KNO WUT COLOR THE POSITIVE AND NEGATIVE WIRES ARE or else it wont work. now place the positive wire thats connected tot he bottom of the inside battery on the positive side of the external battery and tape it. next get the negative wire thats connected to the negative charge plate and tape it to the bottom of the external battery. now tape up a both top and bottom batteries to double secure them. now tape it around the battery (basicly so its all black) but make sure its not TOO big to fit out the frame and in the frame but personally i think you should just stick to one frame per car unless you want all your frames to have a mest up back window. so choose your frame wisely that way you can just stick the 2 wires out the window b4 you put it on the battery. anyways now that your batteries are taped in series (positive yo negative to positive to negative) which we did guess what?? WE R DONE. now for the charger. this here will cost you 3 dollars MAX. take a trip to radio shack and buy a 4 AA battery holder with a positive and negative wire on it which costs about 2.00 dollars with tax. but if they dont have a 4 AA holder with the 2 wires just buy one without them and buy the connector that connects the the batteries to the positive and negative wires. its like a snap on. now that you have your 4 AA battery holders w/ the 2 wires open up your microsizer controller and take off the charging pad by ripping it off from the pcb that way you have 2 extended wires on it. now this is the guessing part unless you kno which wire on the charging pad is positive and negative. now tie together the positive wire from the battery holder to the charging pad and the negative wire to the negative wire on the charging pad. now put your dual celled car on the pad and press up on the controller 2 see if it runs. make sure that if your battery holder had a on and off switch its pressed on (personal story there haha). if it doesnt run then switch the wires around. dont worry you will kno when its charging or not from the SUPER SPEED SOUND lol. when its all figured out tape the wires that were tied so they dont brake off and tape it to the charger so its more handy and durable. NOW WE ARE ALL DONE AND YOUR DUAL CELL IS READY. if you have all the parts for the car it should only take about 20 minutes MAX. the charger should take 5 mins MAX. now now your car wont be superman so dont run it off the table or hit walls at MAX speed because the wires may slip out. (they seem to take it pretty good but on the safe side just be careful) have fun