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Old Jan 12, 2002, 11:28 PM
jamesperoulas is offline
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Qualcomm 830's in a Tiny?


Has anyone tried to fit the Qualcomm 830 rechargeables into a tiny? Will they fit without breaking the case open and reconfiguring the cells into a stick format?

James
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Old Jan 13, 2002, 08:00 AM
jberg is offline
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Hi,

I didn't try it but I assume that that would only work with two cells and a GWS DX-A drive with a fairly big prop. I think two cells will not have enough voltage for the DC1717 or DC1524 and three cells will be too heavy.
Old Jan 13, 2002, 11:52 AM
Allan Wright is offline
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the batteries on my tiny (and I assumed most tinys) velcro to the underside of the wing. The Qualacom packs work great that way. Plenty of power.
Old Jan 15, 2002, 01:38 PM
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Qualcom 830's


You can save weight/size by cutting away plastic case with dremel cutoff wheel except for portion with four large charger contacts. Be extremely careful not to cut deeper than plastic thickness to avoid any damage to flex ribbon or protector board

Solder connector leads to B+and B- on protector board and wrap with electrical tape or shrink wrap, cut away tape from charger contact area. Pack can just be set on charger contact pins to charge.
Old Jan 15, 2002, 09:18 PM
jamesperoulas is offline
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Oh!


I thought the batteries went _inside_ the Tiny! I just couldn't see how I would get the qualcomms in there with the servos and with the carbon rod going all the way through the electronics compartment.

James
Old Jan 16, 2002, 12:43 PM
gnofliwr is offline
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Nope. The bottom center of the wing is unsheeted/uncovered. I wedged the Rx, ESC and leads up between the carbon rod fuselage and the wing top sheeting. The battery hangs/velcros off the bottom of the tube and you can move it fore and aft to adjust the CG.

BTW, if you're using a 1717 motor and a 8x50mAh pack you'll be heavier and have less power with the 830's. OTOH, if your using a GWS IPS-A drive, the 830s are a couple of grams lighter than a 7 cell 270mAh NiMh pack or a 6 cell 120mAh NiCd pack. While it's a little heavier, I've found the Tiny much livelier on the IPS-A than on the 1717 (and it's about 1/3 the price).
Old Jan 16, 2002, 09:48 PM
Gene Bond is offline
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Not sure how relevant it is, but the best setups on my BluCor Tiny (6.25oz) is QC830 w/ DX-A+10x8, or 8x300 w/ DX-A+9x7.
Old Jan 16, 2002, 11:43 PM
Allan Wright is offline
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If you're using the Qualacoms on DX-A with 10x8 prop I hope you're using the heat sink or don't mind replacing motors often. That's drawing a little more than that poor little motor can handle.
Old Jan 17, 2002, 09:39 PM
Gene Bond is offline
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The only DX-A I don't use a heatsink on is turning a 7.5x5 on a 4oz ship.

5 minutes is all you can stand with that much power anyway! The rest 5, fly 5, repeat.

(It's also cold here!)



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