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Jun 18, 2017, 12:36 AM
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Battery Cradle ( 2 x 18650 ) 2s


Some time ago I said I was going to make a battery cradle for 2 x 18650 ( 2s ) to test 18650 for possible RC use ..

I made the cradle some time ago complete with a balance plug .


Sorry Guys ! I deserve a Tardy slip !!!!
I stuffed up ...



I forgot to do a spring bye pass !!! ( Such a dumb ass )
So there I was wondering why one spring looked like it had cooked ( because it had - cooked )
I had done a double bye pass on the other spring , but forgot all about the other ( dumb ) , I must be getting old or something .

Anyhow , I did a double bye pass on the front spring and VIOLA !! ( or is that Eureka )
Now that the batteries are not cooking a spring there is plenty of juice to feed the buggy .. ( such a )

So there you have it ... ( Lets get that link to the batteries )
http://www.ebay.com.au/itm/4x-Sony-U...8AAOSwLF1X-zzg

So the batteries are fine , just a dumb dumb playing with them ...

I am all out of these battery carriers , but I do have some on order ...
So I might do another with thicker wire ( bye pass )

1) So yeah , if you do this remember to bye pass the springs ( They dont like current )
2) The solid contacts should be fine ( much larger surface area ) if you really wanted you could drill and solder (?) but you take the risk of melting the plastic .
3) When soldering , I would recommend pliers to hold the contact points to act as a heatsink ( That melting plastic thing )
4) I added a 2s balance harness for the battery / voltage monitor / alarm , also if you want to charge the batteries in the cradle ( balance charge )
Last edited by old4570; Jun 18, 2017 at 01:58 AM.
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