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Originally Posted by jhautz
So anyone know how they can take what appears to be a 2 cell pack and put a box on it to dial it up to 10.8V?:dft002:
Could you take that box and dial up a standard 6 cell sub c to 10.8V?
Seems kinda like magic to me.... :p
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Not magic, a DC to DC converter. You don't gain anything except the ability to dial in the voltage you want so one pack can be used for different voltages. Power output will be the same. If you dial up the voltage, it will pull the same amount of current from the battery, but provide less current at the output. Example: Let's say you dial in 10v and your load is 20A. That is 200w. The 6.6v battery will have to supply 30.3A to the converter to get 10v @ 20A at the output. 6.6v X 30.3A = 200w = 10v X 20A. There are some losses in the circuit so actual current pulled from the battery will be a little more. For the sake of efficiency, it would be best to get the pack(s) that have the voltage you want so the converter won't be necessary. It's a really good idea though.