Anyone here have a H9 Alpha 40 dsm with a 6v receiver pac ? if so how did you stuff it in there...
reason I ask is that it seems like the AR500 is thirsty and likes the juice..thanks

Umm... what receiver pack are you using? The ones I have are one cell larger than a four cell 4.8 volt pack and my 6 volt pack fits right in my "club" trainer.

CGr.

Make sure you get a 6V pack of much more mAh capacity than your 4.8v or you will be flying for less time. 6v provides more energy but uses it up faster.

There are many sizes of batteries and configurations. To get an idea go to cheapbatteries.com -> battery packs -> custom packs then enter the "cell count" count that you want. 6.0v batteries have 5 cells. Go ahead and select any of the configurations. You'll be presented with 25 - 30 different cell options. Different cell size and weights (same voltages) can be used to construct the pack. Let your imagination roll on ...

thanks for the replys above. I have the spectrum 4.8v 1500mah nimh that came with my RTF Alpha. I'd like to upgrade to 6v, but it looks like a very tight fit being that the RX is directly in front of the 4.8v 4cell.

I have the same Alpha and Rx combo. I put in a 6V, 5 Cell 2500 Mah Nimh Flat pack in the battery tray and moved the Rx. to the sidewall of the fuse between the power switch and the gas tankby securing it there with velcro. This also gave me room to stretch out the longer antenna along the side wall of the fuse and I have easier access to the Rx.This did not seem to effect the CG of the plane as this area is right along the main wing spar. Problem solved!

You are already using a rather large capacity battery. It sounds like you might be stalling a servo.

thanks to all those to replied and gave suggestions, It's much appreciated. The reason I want to go 6v is cuz I read soooo much bad press about the AR500 browning out. As a Newbie, If I crash my Alpha, I'd prefer it not be becuz I did not have enough juice.
SC

I understand your concerns. Too bad that only the bad experiences are "published". Seems that all (or the vast majority) of the good experiences go unnoticed.

Have fun flying.

Do you have an expanded scale voltmeter or at least a Voltwatch so you can measure the battery pre-flight? Good investment that can save a model.

You are right to be concerned. I'd guess 75% ot 95% of those that say they were "hit" or had radio problems were rather because they flew with a low battery and ran out of juice.

I use a hobbico digital volt meter that allows me to put the battery under "load" when checking the volts.
SC

Have you tried balancing it yet. Granted on my older alpha Ive convereted it to a tail dragger and its had some repairs to move weight around but when I balanced it I had to move the battery forward of the "battery tray" and only my reciever is in the battery tray. Just cause they say thats where the part goes doesnt mean it has to. You may have to move pieces anyway even if you stuffed the reciever and battery in that tray. But like others said the reciever can easily be moved to the side wall or elsewhere as its probably much lighter than the battery. And Using the larger battery it may be necessary to move the reciever back to balance out a heavier battery up front. And If you have to move it its pretty simple to make a brace with some scrap balsa / ply and foam padding.

From the pic it looks like you could easily fit the reciever in the gap between the battery tray post and the servo tray, leaving the whole battery tray for that bigger battery.