Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Topics - General > RC Radios, Transmitters, Receivers, Servos, gyros
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

RC Radios, Transmitters, Receivers, Servos, gyros Discussion all about rc radios, transmitters, receivers, servos, etc.

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 03-01-2012, 03:11 AM   #26
Mainuh
No parachute needed
 
Mainuh's Avatar
 
Join Date: Feb 2012
Location: Southern Maine
Posts: 32
Thanked 2 Times in 2 Posts
Club: Propsnappers
iTrader: (0)
Friends: (1)
Default Economical alternative to the Spektrum DX8 LiPo

Originally Posted by NFA Fabrication View Post
The Spektrum battery has the balancer built in to the battery.

"The 4000 2S LiPo offers not only double the flight time as the stock DX8 battery but also advanced safety and features. It also includes a built in safety current that shuts the battery off, to avoid overcharging and damaging the battery and radio. Plus a built in balancing system to make sure you get the longest life and power from your pack."

http://www.spektrumrc.com/Products/D...D=SPMB4000LPTX
You may want to read about this option from Turnigy. At $17.95 it's about 1/3 or less than MSRP for the Spektrum brand. Feedback I've found on it is very good. Similar overcharging prevention circuit etc. Mine's on order for my new DX8 after seeing that the NiMH in a brand new DX7s is only good for 4-6 flights (YMMV).

Cheers,

Don
Mainuh is offline  
  Reply With Quote
Old 03-01-2012, 03:21 AM   #27
NFA Fabrication
Member
 
Join Date: Feb 2012
Posts: 238
Thanked 11 Times in 11 Posts
iTrader: (0)
Friends: (1)
Default

Originally Posted by Mainuh View Post
You may want to read about this option from Turnigy. At $17.95 it's about 1/3 or less than MSRP for the Spektrum brand. Feedback I've found on it is very good. Similar overcharging prevention circuit etc. Mine's on order for my new DX8 after seeing that the NiMH in a brand new DX7s is only good for 4-6 flights (YMMV).
I have a lot of Turnigy Lipo's, I'd trust that with no problem. Good to see a reasonably priced option!
NFA Fabrication is offline  
  Reply With Quote
Old 03-01-2012, 03:47 AM   #28
Mainuh
No parachute needed
 
Mainuh's Avatar
 
Join Date: Feb 2012
Location: Southern Maine
Posts: 32
Thanked 2 Times in 2 Posts
Club: Propsnappers
iTrader: (0)
Friends: (1)
Default Ultimate Guide to DX8 programming ?

For those like me who are new to the DX8, has anyone actually bought a copy of this DX8 programming guide and if so, is it worth it? Looks pretty interesting...

Cheers,

Don
Mainuh is offline  
  Reply With Quote
Old 03-01-2012, 11:40 AM   #29
squidger
Member
 
squidger's Avatar
 
Join Date: Mar 2010
Location: Horley Surrey UK
Posts: 708
Thanked 43 Times in 43 Posts
iTrader: (0)
Friends: (3)
Default

Got my DX8 genuine Spektrum 4000 mah lipo yesterday and on inspection it looks like a standard lipo with a 2 pin plug on the end. If there is built in balancer and overcharge protection then they have hidden it well.
squidger is offline  
  Reply With Quote
Old 03-01-2012, 12:44 PM   #30
Mainuh
No parachute needed
 
Mainuh's Avatar
 
Join Date: Feb 2012
Location: Southern Maine
Posts: 32
Thanked 2 Times in 2 Posts
Club: Propsnappers
iTrader: (0)
Friends: (1)
Default

Originally Posted by squidger View Post
Got my DX8 genuine Spektrum 4000 mah lipo yesterday and on inspection it looks like a standard lipo with a 2 pin plug on the end. If there is built in balancer and overcharge protection then they have hidden it well.
Hey Squidger,

What did it cost you in the UK? Once you run it through a cycle or two, let us know what the battery life is like in comparison to the stock NiMh.

Cheers,

Don
Mainuh is offline  
  Reply With Quote
Old 03-01-2012, 06:05 PM   #31
squidger
Member
 
squidger's Avatar
 
Join Date: Mar 2010
Location: Horley Surrey UK
Posts: 708
Thanked 43 Times in 43 Posts
iTrader: (0)
Friends: (3)
Default

Cost £30 in UK. Will let you know how long it lasts as soon as I do.
squidger is offline  
  Reply With Quote
Old 03-02-2012, 03:17 AM   #32
Merritt
Member
 
Merritt's Avatar
 
Join Date: Jan 2009
Location: Austin, Texas
Posts: 69
View Merritt's Gallery1
Thanked 0 Times in 0 Posts
Club: Austin Radio Control Association
iTrader: (0)
Friends: (8)
Default I Love Mine

Originally Posted by Mainuh View Post
For those like me who are new to the DX8, has anyone actually bought a copy of this DX8 programming guide and if so, is it worth it? Looks pretty interesting...
I have found it very helpful and carry it with me to the field.

Merritt Pratt
AMA #831578
Round Rock, Texas
Merritt is offline  
  Reply With Quote
Old 03-02-2012, 12:26 PM   #33
Mainuh
No parachute needed
 
Mainuh's Avatar
 
Join Date: Feb 2012
Location: Southern Maine
Posts: 32
Thanked 2 Times in 2 Posts
Club: Propsnappers
iTrader: (0)
Friends: (1)
Default

Originally Posted by Merritt View Post
I have found it very helpful and carry it with me to the field.
Thanks, Merritt. I'll probably pick on up as soon as my credit card cools down a bit from the new Taylorcraft and the DX8!

Cheers,

Don
Mainuh is offline  
  Reply With Quote
Old 03-02-2012, 08:43 PM   #34
NFA Fabrication
Member
 
Join Date: Feb 2012
Posts: 238
Thanked 11 Times in 11 Posts
iTrader: (0)
Friends: (1)
Default

Originally Posted by Mainuh View Post
Thanks, Merritt. I'll probably pick on up as soon as my credit card cools down a bit from the new Taylorcraft and the DX8!
Did you buy the Hangar9 Taylorcraft? I have been eyeing that beautiful machine...
NFA Fabrication is offline  
  Reply With Quote
Old 03-03-2012, 12:16 AM   #35
Mainuh
No parachute needed
 
Mainuh's Avatar
 
Join Date: Feb 2012
Location: Southern Maine
Posts: 32
Thanked 2 Times in 2 Posts
Club: Propsnappers
iTrader: (0)
Friends: (1)
Default

Originally Posted by NFA Fabrication View Post
Did you buy the Hangar9 Taylorcraft? I have been eyeing that beautiful machine...
Nope, got the E-flite Taylorcraft 450 and powering with the 450 (some put the 480 on it). Here's a thread on it.

Cheers,

Don
Mainuh is offline  
  Reply With Quote
Old 03-03-2012, 03:32 AM   #36
Ahmed
New Member
 
Join Date: Dec 2006
Posts: 12
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

I've been using that HK battery for about 2 months now in my DX8, and it works great. For some reason it has never gone up to 8.4 only 8.1
There is setting to change the TX to Lipo, and it changes the low batt alarm voltage.

I also got mine from Ultimate Hobbies, they just pretty much take the order and the money, the radio was shipped directly from Horizon, so you get the newest release.
Ahmed is offline  
  Reply With Quote
Old 03-17-2012, 10:58 PM   #37
squidger
Member
 
squidger's Avatar
 
Join Date: Mar 2010
Location: Horley Surrey UK
Posts: 708
Thanked 43 Times in 43 Posts
iTrader: (0)
Friends: (3)
Default

Originally Posted by Mainuh View Post
Hey Squidger,

What did it cost you in the UK? Once you run it through a cycle or two, let us know what the battery life is like in comparison to the stock NiMh.

The upgraded battery is much better. I'm pretty much flying most days and when I'm not actually flyin with it I am usually buddy boxing someone so they are using my radio. I have charged it only twice in two weeks and to be honest I probably charged it early both times. It goes to 8.4 ish after a charge and I have recharged at 7.2 but it seemed to sit at that voltage for a long time so well pleased.
squidger is offline  
  Reply With Quote
Old 07-19-2012, 09:23 AM   #38
Redbaron1
New Member
 
Join Date: Apr 2012
Posts: 5
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

Hi guys, need some help here. I'd like to go into gliding and have got myself a radian pro with a dx8 but am having trouble hooking it up to the rx as i'm not sure where the servos go in the 8 ch receiver. I have tried various combinations without much luck as i can't seem to get the crow to work. Any help would be greatly appreciated.
Cheers
Redbaron1 is offline  
  Reply With Quote
Old 07-19-2012, 12:38 PM   #39
JetPlaneFlyer
Super Contributor
 
JetPlaneFlyer's Avatar
 
Join Date: Mar 2009
Location: Aberdeen, Scotland
Posts: 4,262
Thanked 471 Times in 439 Posts
Awards Showcase

5kW  Outstanding Contributor Award  1kW 
iTrader: (0)
Friends: (8)
Default

Originally Posted by Redbaron1 View Post
Hi guys, need some help here. I'd like to go into gliding and have got myself a radian pro with a dx8 but am having trouble hooking it up to the rx as i'm not sure where the servos go in the 8 ch receiver. I have tried various combinations without much luck as i can't seem to get the crow to work. Any help would be greatly appreciated.
Cheers
Have you set the correct wing type in the programming?
JetPlaneFlyer is offline  
  Reply With Quote
Old 07-19-2012, 12:51 PM   #40
JetPlaneFlyer
Super Contributor
 
JetPlaneFlyer's Avatar
 
Join Date: Mar 2009
Location: Aberdeen, Scotland
Posts: 4,262
Thanked 471 Times in 439 Posts
Awards Showcase

5kW  Outstanding Contributor Award  1kW 
iTrader: (0)
Friends: (8)
Default

Originally Posted by squidger View Post
The upgraded battery is much better. I'm pretty much flying most days and when I'm not actually flyin with it I am usually buddy boxing someone so they are using my radio. I have charged it only twice in two weeks and to be honest I probably charged it early both times. It goes to 8.4 ish after a charge and I have recharged at 7.2 but it seemed to sit at that voltage for a long time so well pleased.
I've just got one of the Turnigy batteries too, seems to work perfectly. Referring back to a comment earlier in the thread about over charge protection.. I believe this is built into the transmitter, not the battery itself, which is part of the reason why setting the battery type to LiPo is important? (could be wrong but that's what I'm assuming)

While the LiPo is great and is a good upgrade I actually found the standard NiMh battery to be perfactly ok. Voltage dropped quickly initially which is possibly what makes some people nervous, but is stabilises as 3.8-3.9v.


Overall I'm delighted with the DX8
JetPlaneFlyer is offline  
  Reply With Quote
Old 07-19-2012, 02:31 PM   #41
MX5Seeker
Glad to be here...
 
MX5Seeker's Avatar
 
Join Date: Jan 2012
Location: North Georgia
Posts: 119
Thanked 8 Times in 8 Posts
Club: Georgia Mountain RC Club and Bristol Field
iTrader: (0)
Friends: (0)
Default

I took the plunge a few weeks back and bought a DX8 too. So far, I really like it. It was a breeze to upgrade the software. Programming is easy too. And I too am very happy with the NiMh battery. I usually only have 5 or 6 flight per sessions, so the battery drops very little in the hour or so that it's on.

On another forum, I heard complaints about the NiMh battery getting hot when charging. All I do is remove the cover when it's charging. Yes, the battery gets warm, but it has plenty of airflow so it does not get hot.
MX5Seeker is offline  
  Reply With Quote
Old 07-19-2012, 08:12 PM   #42
squidger
Member
 
squidger's Avatar
 
Join Date: Mar 2010
Location: Horley Surrey UK
Posts: 708
Thanked 43 Times in 43 Posts
iTrader: (0)
Friends: (3)
Default

The difference in the nimh and lipo batteries is night and day. All depends on how often you fly I suppose. I charge my lipo about once a month. I could let it go six weeks as it only drops to about 7 volts before I charge it and would probably stay at 7 for ages. I fly every day pretty much and three days a week it probably gets used for 3 hours or more. I suppose it's personal preference.
squidger is offline  
  Reply With Quote
Old 07-19-2012, 09:20 PM   #43
JetPlaneFlyer
Super Contributor
 
JetPlaneFlyer's Avatar
 
Join Date: Mar 2009
Location: Aberdeen, Scotland
Posts: 4,262
Thanked 471 Times in 439 Posts
Awards Showcase

5kW  Outstanding Contributor Award  1kW 
iTrader: (0)
Friends: (8)
Default

Yep the Lipo is a good upgrade no doubt.
Obviously at 4000mAh it's got twice the capacity of the 2000mAh NiMh. But as you say, the Lipo lasts a month or more flying every day, so logically the NiMh with half the capacity will last at least two weeks flying every day, which isn't at all bad IMHO.

Just making the point because the MiHh battery seems to come in for a lot of stick for having a poor run time but my experience was that it was perfectly ok.. But the LiPo is twice as good
JetPlaneFlyer is offline  
  Reply With Quote
Old 07-19-2012, 09:33 PM   #44
MX5Seeker
Glad to be here...
 
MX5Seeker's Avatar
 
Join Date: Jan 2012
Location: North Georgia
Posts: 119
Thanked 8 Times in 8 Posts
Club: Georgia Mountain RC Club and Bristol Field
iTrader: (0)
Friends: (0)
Default

No doubt the LiPo is better, and I'll get one some day. But for the amount of time I fly, the NiMh is fine. Just making the point so that those that come later to look at this thread know the NiMh is OK.
MX5Seeker is offline  
  Reply With Quote
Old 07-19-2012, 11:17 PM   #45
squidger
Member
 
squidger's Avatar
 
Join Date: Mar 2010
Location: Horley Surrey UK
Posts: 708
Thanked 43 Times in 43 Posts
iTrader: (0)
Friends: (3)
Default

Agreed. As said, you need to give the nimh a little time to run in so to speak as the initial use gives the impression that it isn't good enough until it's had a few cycles. I was having to charge mine every other day from new but I didn't give it enough cycles to get better as I got the lipo at a good price.
squidger is offline  
  Reply With Quote
Old 08-15-2012, 05:04 PM   #46
Victory Pete
WWI Flying Ace
 
Victory Pete's Avatar
 
Join Date: Apr 2010
Location: Rhode Island USA
Posts: 337
Thanked 7 Times in 7 Posts
Club: Rhode Island Soaring Club
iTrader: (0)
Friends: (14)
Default

AirWare update V2.05 is finally on the Spektrum Community website.
https://community.spektrumrc.com/login.aspx

VP

P.S. I am a treehugger, just not when my plane is in one!
Victory Pete is offline  
  Reply With Quote
Old 08-15-2012, 05:54 PM   #47
xmech2k
Ya got any Beeman's?
 
xmech2k's Avatar
 
Join Date: Apr 2009
Location: San Diego, CA
Posts: 2,478
View xmech2k's Gallery21
Thanked 225 Times in 223 Posts
Club: CVMRCC, SEFSD
Awards Showcase

1kW  Outstanding Contributor Award 
iTrader: (0)
Friends: (7)
Default

Originally Posted by Victory Pete View Post
AirWare update V2.05 is finally on the Spektrum Community website.
https://community.spektrumrc.com/login.aspx

VP
I'm concerned about this part, though:

"Corrected trainer normal Master mode so that it doesn’t modify controls from the
slave. In previous versions it could reverse channels vs. what was expected.
NOTE:
This change affects sub-trim and travel of existing models and ones you
will import. You may need to adjust sub-trims and travel on all control surfaces in

both airplanes and helicopters."

I've already heard a report from one guy that yes, his heli setup was changed by this update! So we're going to have to go through all our models flight control setups?!?
xmech2k is offline  
  Reply With Quote
Old 08-15-2012, 07:08 PM   #48
NFA Fabrication
Member
 
Join Date: Feb 2012
Posts: 238
Thanked 11 Times in 11 Posts
iTrader: (0)
Friends: (1)
Default

For update 2.04 they gave a list of what was in the update. I do not see that for 2.05 on the updates page. Anyone see the list somewhere? Link?
NFA Fabrication is offline  
  Reply With Quote
Old 08-15-2012, 07:48 PM   #49
Victory Pete
WWI Flying Ace
 
Victory Pete's Avatar
 
Join Date: Apr 2010
Location: Rhode Island USA
Posts: 337
Thanked 7 Times in 7 Posts
Club: Rhode Island Soaring Club
iTrader: (0)
Friends: (14)
Default

Originally Posted by NFA Fabrication View Post
For update 2.04 they gave a list of what was in the update. I do not see that for 2.05 on the updates page. Anyone see the list somewhere? Link?

Version 2.05
13 August 2012
Software Features
•
Added support for GPS and High Current telemetry sensors.

•
Enabled up to 32-pole motors for the brushless RPM sensor.

•
Enabled SD telemetry log file

•
Enabled ability to configure inactivity timer

•
Enabled backlight configurability (Auto/On/Off)

•
Enabled dimming control of the orange Spektrum LED for night flying

•
Adjusted vibe motor RPM to be less aggressive

Software Corrections
•
Fixed bug that could reset the radio when scrolling through Mix options.

•
Corrected L/R trimmer ‘forgetting’ assignment after power cycle.

•
Improved translations in French and Italian screens.

•
Corrected export of flap configuration.

•
Corrected over-travel of flaps that could result in reversed operation at extreme
deployments.

•
Corrected switch change on Acro throttle cut screen when going from the initial
switch selection to the edit page.

•
Corrected timer to work properly in Throttle Out mode when using reversed
throttle channel.

•
Corrected end-point adjustability when Trainer is used as an input to a channel.

•
Corrected trainer normal Master mode so that it doesn’t modify controls from the
slave. In previous versions it could reverse channels vs. what was expected.

NOTE:
This change affects sub-trim and travel of existing models and ones you
will import. You may need to adjust sub-trims and travel on all control surfaces in

both airplanes and helicopters.

P.S. I am a treehugger, just not when my plane is in one!
Victory Pete is offline  
  Reply With Quote
Old 08-15-2012, 08:19 PM   #50
NFA Fabrication
Member
 
Join Date: Feb 2012
Posts: 238
Thanked 11 Times in 11 Posts
iTrader: (0)
Friends: (1)
Default

Thanks! Very excited that they are finally adding GPS support! Would love to read up on that and the current sensors, but I don't see any info on their site yet. Also like the backlight feature, I was just talking with a friend the other day about it being annoying that it turns off in the evening!
NFA Fabrication is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > R/C Electric Topics - General > RC Radios, Transmitters, Receivers, Servos, gyros

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
For Sale Brand New Spektrum DX8 Transmitter storm2313 Radio Equipment For Sale & WTB 3 09-14-2011 09:45 PM
Wanted WTB: Spektrum Dx7 or Dx8 DrDave Radio Equipment For Sale & WTB 2 09-03-2011 05:34 PM
Official Miss Stik Appreciation Thread FlyWheel General Electric Discussions 1 07-09-2011 03:53 AM
Spektrum DX8 Safety Warning! z-8 RC Radios, Transmitters, Receivers, Servos, gyros 53 03-20-2011 03:10 AM


All times are GMT +1. The time now is 03:33 PM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.33729 seconds with 69 queries