Re: What expander to run 7.4v?
I would check out the 42% products. They have a power expanded called the blue box. It comes in 8 and 12 channels. I plan on using one in both my dalton. The reciever receives 5 volts consta t and the servos will recieve what ever the I put volt ofthe batteries are. So input 7.4 volts output 7.4 volts.Also it has a battery systems that equally draws power from both batteries. I would check it. I plan on using the same 7950th in my 42%. Hope this helps. Also they sell regs that can be adjusted to suit your needs.
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