Digital.Complex: battery pack tutorial(lots of pics) - Digital.Complex

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battery pack tutorial(lots of pics)

#1 User is offline   mk2kompressor 

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Posted 13 October 2008 - 03:40 PM

had a little spare time so wrote this :mrgreen:

before you build up your chosen chassis think about how you are going to power it.
just throwing some cells together "for now" wont cut it when you get tweak issues on the first drive(yes if your cells are mis-aligned this may cause your car to act a little funny!)


you will need:
1,
soldering iron with a wide tip fitted and at least 40w so you dont damage the cells by heating them up too much,the bigger the watt the longer it takes for the cell to soak up all the heat and the quicker you can make a nice clean shiney join.
.8mm solder and that funny sponge thing that comes with most higher end solder stations,you WILL clean the tip after every join!(remember to wet it first!)
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2,
some way of connecting the cells together,i use TGR copper battery bars but you can use wire its just a little messier,the batt bars will need a little trim
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3,
ideally a naked chassis plate,i hope you didnt get too exited and built it up already ;-)
4,
super glue
5,
helping hand is optional(the thing with the croc clips on it)
6,
file(more accurate)or sandpaper to key up the ends of the batteries(the solder will stick better)

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first up we need to key up(scratch)the cells,this needs to be done in a smallish area

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once you have done all four cells(both ends)drop a blob of solder in the middle of each - end and at the top of the + end

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take the super glue and place a drop between each cell,it should flow out a little,time for a cup of tea whilst it dries

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grip the pack in something and proceed to add the first bar,you will see the solder flow over the hole in the bar,take off the iron and it will go shiney

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let each cell cool and wipe the tip between each join

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stand back and admire your new racing pack

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all you need to do now is decide where the power wires need to go and connect them to the pack with your chosen plug :D
to be extra good you can chamfer the cell seperators in the chassis to a 45deg angle so the whole pack sits lower,lower C.O.G :cool:
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#2 User is offline   CowboySiR03 

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Posted 13 October 2008 - 08:12 PM

Great tutorial Matt...the only thing I did differently is used a silicone type adhesive like Shoe-Goo for the cell pack adhesive.
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#3 User is offline   mk2kompressor 

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Posted 14 October 2008 - 03:04 PM

thanks :D
im going to offer made up packs in my shop when the MRCG's come in
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