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Gustav · 04.21.2006, 02:13 PM

A BEC (battery elimination circuit?)negates the need for a seperate reciever pack/6v battery,by taking voltage from the main batteries and converting it to 6v.Basically they save weight (100grams or so) and mean you don't have a seperate reciever pack to charge.

Most escs have a built in BEC but it's best not to use it especially above a certain voltage as they cause extra stress and heat for the controller,so that's where an external BEC device like the UBEC comes in.Controllers that don't have a built in bec are called opto-coupled (i think).

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Gustav RC-Monster Aluminum Offline Posts: 916 Join Date: Jul 2005 Location: UK	04.21.2006, 02:13 PM A BEC (battery elimination circuit?)negates the need for a seperate reciever pack/6v battery,by taking voltage from the main batteries and converting it to 6v.Basically they save weight (100grams or so) and mean you don't have a seperate reciever pack to charge. Most escs have a built in BEC but it's best not to use it especially above a certain voltage as they cause extra stress and heat for the controller,so that's where an external BEC device like the UBEC comes in.Controllers that don't have a built in bec are called opto-coupled (i think).