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T-REX 700 › V2 push-button battery clip tray
10-17-2011 05:49 AM  7 years agoPost 1
Sam2b

rrElite Veteran

Tacoma, WA

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How many don't trust the new push-button battery clip tray thingy? Do you secure your battery with a front velcro strap as added protection? All that is holding your 10-12S pack is the little plastic nub against the push-button latch. Has anyone slung a battery because of this new mechanism while not using extra velcro straps?

_Sam B_

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10-17-2011 06:08 AM  7 years agoPost 2
mrloudly

rrVeteran

Naseby Northampton England

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I trust it, but don't use it, as you have to remove the canopy to install batteries and the leads still need to exit at the rear. Takes 5 secs to retain with velcro strap. Would be a lot better if retaining system was fitted at rear...

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10-17-2011 08:17 AM  7 years agoPost 3
w12martin

rrVeteran

Chengdu, Sichuan, China

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If the new push-button battery clip tray wasn't doing its job there would be
lots of failure reports here and in other forums.
Fortunately I haven't found any report yet. Plus, mine is working great

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10-17-2011 08:45 AM  7 years agoPost 4
HarveyR

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France - North

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I don't have the V2 yet, but would there be a way to extend the button so it could be accessible through a hole in the Canopy. I too would like a system where removing the canopy isn't necessary.

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10-17-2011 10:04 AM  7 years agoPost 5
mrloudly

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Naseby Northampton England

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Hole in the canopy wouldn't work, the battery still has to come out forwards. Tray goes against a retainer behind the clip. It's a good idea, but needs to be at the rear...

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10-17-2011 01:55 PM  7 years agoPost 6
Richardmid1

rrProfessor

Leeds, England

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I thought they were only intended for use with the metal battery trays?

60% of the time, it works every time!

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10-17-2011 02:51 PM  7 years agoPost 7
Sam2b

rrElite Veteran

Tacoma, WA

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It is possible to modify the original plastic tray easily by cutting off the top two raised guides and one of the nub thingies. Just leave one nub thingy attached. A dremel tool works well for this. So now you don't have to pay $40 for another tray.

The original concern is with lots & lots of pirouetting if the constant centrifugal force would cause the plastic nub to fatigue and let go. I'm kinda up in the air about it for now (no pun intended).

Regarding taking the canopy off, geez what is the big deal? As if the push-button wasn't easy enough. It's not that much work and not so hard to do.

_Sam B_

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10-18-2011 08:24 AM  7 years agoPost 8
HarveyR

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France - North

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Quite true... besides, the bird doesn't fit in my car with the canopy on anyway.

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10-18-2011 03:49 PM  7 years agoPost 9
Raptorz499

rrKey Veteran

NJ

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^^^ same here...won't fit in the car anyhow plus I check it over real quick before each flight.

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10-19-2011 03:37 AM  7 years agoPost 10
Sam2b

rrElite Veteran

Tacoma, WA

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I've thought about it enough and decided I will use a lateral velcro strap around the front. Rear stationary straps will also be used. With my 12S 5000mAh packs that is 3.2 pounds of battery times 2,3,4x gravity or more, plus additional centrifugal forces while pirouetting like a mad man. I think a velcro strap is very cheap insurance. The push button clip on my machine will be used for setting the batteries in the same CG position. In either case it sure beats fussing with a can of liquid fuel and all that mess.

_Sam B_

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10-19-2011 04:30 AM  7 years agoPost 11
AndyH

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Rockledge, FL

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I've had no problems so far.

I use a strap at the rear for redundancy, and if you think about the canopy itself is another form of redundancy for the latch, if the front latch fails the battery will just slide forward and be caught by the canopy, you'd probably notice the massive shift in CG and decide it's time to land right?

Either way, at least the canopy's there. It's not a big deal to take the canopy off every flight, better for cooling anyway.

This hobby is like Kryptonite to chicks!

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10-21-2011 11:29 PM  7 years agoPost 12
inkspot1967

rrProfessor

Cranston Ri

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I have used it on mine til i sold my heli with many hard flights and have not had one problem with it.

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10-23-2011 03:50 PM  7 years agoPost 13
Band1086

rrElite Veteran

Kennewick, Wa. USA

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I put one on my 800 this weekend, but I wouldn't trust it with the plastic tray(at least that's my initial thought). The only problem I see is it adds weight, and as it is designed to be used with the metal tray, that adds a bit of weight also. But the metal tray is very nice, no flex when your holding it by one battery. And the push button tray holder is very convenient. On the 800 a little extra weight doesn't matter anyway, as the thing floats at 12.5 lbs.

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10-27-2011 06:36 AM  7 years agoPost 14
Sam2b

rrElite Veteran

Tacoma, WA

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Update: I bought longer metal trays and installing the batteries now is a snap! (no pun intended) (ok, pun really intended). IF the heli is an ounce heavier with the latch and metal tray it sure is worth the convenience of the snap mechanism. I'm going naked - nothing else holding it in. The metal trays also have a wider & beefier nub that locks in place compared to the plastic tray. I will say a prayer before every flight. I think I will finally enjoy swapping packs now.

_Sam B_

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10-31-2011 08:59 PM  7 years agoPost 15
Terrabit

rrElite Veteran

Seattle, WA - USA

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Hi Sam,

I was concerned about how robust the latching mechanism is too. I. frankly, am surprised that we haven't seen a single reported case of failure. I expect that ven if the latch mechanism does not fail someone is going to launch without the latch being propperly engaged. I've nearly done it myself.

For now, I'm trusting the mechanism to hold and myself to be vigilant ... mostly because I'm lazy.

Hey, what battery trays are you using?

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11-01-2011 12:43 AM  7 years agoPost 16
AndyH

rrKey Veteran

Rockledge, FL

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Just get in the habit of giving a yank when you install the battery to make sure the tray's locked into place.

The align tray is the only one set up to work with the latch right?

This hobby is like Kryptonite to chicks!

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11-01-2011 12:44 AM  7 years agoPost 17
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Just bought my second locking tray, looking forward to losing the straps on my TR's.

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11-01-2011 02:21 AM  7 years agoPost 18
Sam2b

rrElite Veteran

Tacoma, WA

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I chose the KDE v2 trays.

_Sam B_

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11-01-2011 03:46 AM  7 years agoPost 19
Terrabit

rrElite Veteran

Seattle, WA - USA

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Yeah the stock trays don't fit real well. Probably fine with the 800 stretch. They'd be farther forward.

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11-13-2011 03:31 PM  7 years agoPost 20
rcflyerheli

rrKey Veteran

Granbury, TX USA

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"I've thought about it enough and decided I will use a lateral velcro strap around the front. Rear stationary straps will also be used. With my 12S 5000mAh packs that is 3.2 pounds of battery times 2,3,4x gravity or more, plus additional centrifugal forces while pirouetting like a mad man. I think a velcro strap is very cheap insurance. The push button clip on my machine will be used for setting the batteries in the same CG position. In either case it sure beats fussing with a can of liquid fuel and all that mess."

I hadn't given much thought to this setup until I read this thread. I have both the 600Pro and now the 700 V2 with this system, and now thinking about the other comments, I am still just sticking with with clip in system.

I still have to take my canopy off to connect the RX pack, so that issue isn't a problem for me, particularly since I installed the Booya canopy mounts.

The reason I don't feel the clip is a problem is that in piros, the batteries lie under the center of gravity, with one ahead of the C/G and one behind the C/G. The force loading on the clip is dependent on both the location of the packs around the point of revolution and of course the rate of revolution.

Since the packs are relatively located directly under the C/G the net forces from rotation tend to cancel out any loading on the clip. The greater loads are actually on the straps holding the packs to the tray.

Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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