How to charge 2 2s battereis as a 4s

[roadrashracing]

I would like to charge my 2 2s packs at the same time, they are both the same, they are hard case with the ballance plug that comes off. My charger does up to 4s. How would you hook these up and how would thse balance if you wanted to charge both at the same time.

[Stinger9D9]

You could make an adapter, or just buy one of theses:

http://www.greathobbies.com/productinfo/?prod_id=TGHX1000

I have made a couple, but they are the same as this one (with different connectors of course). They work great - 2 2S packs in an hour. Saves a ton of time.

[roadrashracing]

how would you wire it, I could easly make one.

[JimClark]

loads of info on this if you search for it. look for series or parallel charging

[roadrashracing]

http://www.commonsenserc.com/product...oducts_id=1718I got this to balance, hooked it up and the balance wires just melted:

[marko500]

I use this method and you probably had the wrong balance wire to the wrong battery. On my "Y" adapter I labeled one balance plug "+" and the other "-".
-The battery with the red battery wire plugged into the red charge lead gets the balance wire plugged into the "+" balance plug.
-The battery with the black battery wire plugged into the black change lead gets the balance wire plugged into the "-" balance plug.
Now you just need to figure out which plug on the "y" adapter to label "+" and "-".
I used this link to help me figure it out. http://scriptasylum.com/rc_speed/lipo.html
My first attemped ended the exact same way as yours. Just be careful and remember if it's wrong your shorting out a lipo and I'm sure you know what the results could be.

Mark

[roadrashracing]

I think it might be a charging adaptor?? Anyway, it did how that other site said, have checked there in the past and seems to work now.

[Stinger9D9]

...I used this link to help me figure it out. http://scriptasylum.com/rc_speed/lipo.html
My first attemped ended the exact same way as yours. Just be careful and remember if it's wrong your shorting out a lipo and I'm sure you know what the results could be.

Mark

Yes, you need to be careful, label your leads for both the battery and the balance adapter (better yet, zip tie them together) and you will be set.

I have 2 different rigs made up but they both do the same thing. I use them all the time.

2s + 2s = 4s pic.jpg

[lenny]

Make sure you hook the main + & - from cells to the charger first or your balance plug wires may burn.

[Stinger9D9]

The way I hook it up is, connect the two main batteries first, then connect the balance adapter to the batteries (before connecting anything to the balancer), then, once everything else is hooked up, plug the balance adapter into the balancer.

If you do this out of order (like plugging pack #2 into the balancer al by itself) bad things will happen.

If you plug the batteries in opposite of the way you plug them into the balance adapter, sparks, melting and so forth will happen.

So basically it goes like this:

Charger connection

Pack #1 - the negative goes to the negative on the charger, the positive goes into the negative of pack #2
Pack #2 - (negative is already connected to pack one as above) the positive of this pack goes to the positive on the charger

Balancer connection

Pack #1 - the "most negative" wire connects to the "most negative" (the farthest over ground) wire on the balancer
Pack #2 - the "most negative" wire connects to the same spot as the positive balance wire from pack #1

I've taken the diagram from that website and edited it to show exactly how I always hook up my batteries, and in which order.

balance connctions 2.jpg

Or if you could have just bought the adapter I listed in my first reply in this thread:

http://www.greathobbies.com/productinfo/?prod_id=TGHX1000

...it's already got all these wires (balance wires and main leads), tied together to avoid accidental melting. Not to say I told you so but...

[monojeff]

Anyone know where I can get just the balance adapter for 2x2s to a 4s??
I have a cellpro 4s charger and this is what I need to charge them as the + & - wires do not connect the charger only the balance taps.

[marko500]

Jeff did you check out here http://rclipos.com/
If you don't see what you need maybe get in touvh with them and see if they have any ideas.
For mine I just got the ends with wires and spliced what I needed together.

Mark

[monojeff]

I will take a look thanks

[FighterCat57]

http://www.commonsenserc.com/product...oducts_id=1718I got this to balance, hooked it up and the balance wires just melted:

Lol... took me a while to figure out that the balance +- needed to match the Y cable + -

It's far easier to get a parallel board IMO. Some boards do up to 6 battery packs at once. Just keep the Mah rating the same! =)

[JimClark]

Everythign you need in what ever connector you want can be bought right here

http://www.progressiverc.com/adapter-cables-and-boards.html