Originally Posted by hanzo3
I am using a Venom lipo tx pack for the ex-10 helios. Which is the correct way or polarity to plug it in and power up?
I did have the Ballistic Batteries lipo tx pack in my Helios. It is now in my new Eurus. The tx pack came with a 3-4" long 2-wire harness. This harness has two different connectors. The 3-wire connector plugs to the pins located within the Helios' battery compartment and the 2-wire connector is keyed to a connector that comes out of the Ballistic lipo tx pack.
Hopefully, your Venom made tx pack is similar.
Remove the bottom cover and 8-cell AA battery pack. Look for the three connector pins at the front of the radio's battery compartment. The pin oriented to the back side of the radio is positive (+) and the pin in the middle is negative (-). The pin towards the steering wheel side of the radio (front) is not used.
I placed a stick-on tag with a Brother label maker next to this location with the words "RED WIRE TO BACK SIDE PIN" to remind me.
Warning...Don't ever try to charge the Venom lipo pack while it is in the radio. My battery maker warned against doing so.
Hope this helps.