Battery Holder 2 x 14500 VS. Recharge Port

Hey Gang! I was just looking through the speaker holder/battery holder options and saw that part #spkr2aa - says - "MWS compatible if used with 2x 14500 li-ion PCB protected cells (not for use with a recharge port setup)"

I thought I read somewhere that a battery holder and a recharge port offered you the best of both worlds (i.e. on the fly battery swaps at conventions, and disassembly-free charging)?

So, why couldn't you use a recharge port?

Or is it simply that the #spkr2aa...

http://www.thecustomsabershop.com/MH...lder-P766.aspx

... is set up for plug and play wiring using the MHS Wiring System / JST Connectors and those would need to be cut off and soldered in place on the correct areas of the soundboard/power port?

I was hoping to rig up a 2 x 14500 battery holder in my lightsaber that has a 9V style connector + wire leads so that I could just quick swap the whole battery holder and keep "paired" batteries together.

Your thoughts and suggestions or warnings about setting up my batteries this way would be greatly appreciated!

I think a single battery holder + recharge port is the ultimate in flexibility.

I don't think the charger is able to adequately and safely charge two batteries when in a holder this way. A 7.4V battery pack is not the same thing as two 3.7V batteries in series in a battery holder.

Mixing those two is NOT a good idea as I recall.

Thanks for the replies Guys! I might still include the recharge port to use a kill key to protect the board and just not use it to charge the batteries. That or I'll hide a small ON/OFF switch in the activation box somehow.