Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopters > Main Forum - Helicopter Talk


Main Forum - Helicopter Talk R/C Helicopters and the people who fly them. VENDOR TOPICS DO NOT GO HERE. Full Scale Heli threads go in OT please


Like Tree25Likes
Reply
 
LinkBack Thread Tools Display Modes
Old 02-17-2017, 01:17 AM   #1 (permalink)
Registered Users
 
Posts: 3,221
 

Join Date: Dec 2014
Default R2 buffer pack

Anyone running one of these? I've thought of adding them to buffer voltage under load but I'm not sure where they'd fit.

I have only been able to find one photo of the pack on a goblin of unknown size and it looked huge.

If anyone is running this thing, could you please post a photo of it in your heli so I can more accurately judge the size and what to expect?

Thanks
__________________
Trex 700L spirit pro / Trex 700n spirit pro/ Trex 550x spirit pro / Goblin Black Nitro 700
Thestructured is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-17-2017, 03:19 AM   #2 (permalink)
Registered Users
 
Posts: 2,455
 

Join Date: Jul 2015
Default

Yeah, they're not that small (especially the 50F version), but very light (the caps weigh almost nothing).

I managed to find room inside the chasis of my Compass helis (BECs, ESCs and receivers are mounted on the outside).

The 50F version would probably give a minute or more of normal usage on my 600, far more than enough to cover a disconnected pack, though not a BEC dying at the start of the flight (telemetry can warn about that — voltage drops).

https://www.helifreak.com/attachment...1&d=1463167611
https://www.helifreak.com/attachment...1&d=1463167860

The 25F version is the same width, just shorter caps.
__________________
Compass 6HVU, XLPower 520, Chase 380
cycled is offline        Reply With Quote Quick reply to this message
Old 02-18-2017, 01:56 PM   #3 (permalink)
Registered Users
 
Posts: 9,599
 

Join Date: Mar 2011
Location: Charlotte, NC USA
Default

Installed on a Logo 550

Attached Thumbnails
Click image for larger version

Name:	Logo 550 R2.jpg
Views:	1600
Size:	116.6 KB
ID:	694818  
__________________
Protos 700X Evo, Kraken/700 Havok/Kraken 580/Buddy 380 KSE, Logo 550SX V2; YGE "T" ESCs, Neo VLinks;VBC Touch, AGM Deep Cycle Batteries
Simulators (on MacBook Pro): Heli-X, neXt, AccuRC, RF9, Phoenix, AeroFly RC7 Ultimate
Citizen 259
curmudgeon is online now        Reply With Quote Quick reply to this message
Old 02-18-2017, 06:08 PM   #4 (permalink)
Registered Users
 
Posts: 2,229
 

Join Date: May 2011
Default

In my Goblin 700.

__________________
Jay - Diligentia, Vis, Celeritas
Lynx / OXY Team Pilot, Zeal Team Pilot
jmackey is offline        Reply With Quote Quick reply to this message
Old 02-18-2017, 07:45 PM   #5 (permalink)
Registered Users
 
Posts: 4,066
 

Join Date: Oct 2009
Default

The pic here: http://www.rchelination.com/r2-prototyping-buffer-unit/

Shows it in a Goblin 570, I have one in mine as well. It's stuck to the cf back plate by 3m tape, fills the space, but fits.
__________________
Can now be found on the links.
Doom Buggy is offline        Reply With Quote Quick reply to this message
Old 05-04-2018, 07:43 AM   #6 (permalink)
Registered Users
 

Join Date: Oct 2017
Default

Hi all

On the pictures, are these 50F caps? Thanks,
ato
atomic84 is offline        Reply With Quote Quick reply to this message
Old 05-04-2018, 07:06 PM   #7 (permalink)
Registered Users
 
Posts: 2,329
 

Join Date: Apr 2014
Default

Glad to see the comments. I was contemplating getting one of these myself. Anyone have any save stories?
__________________
Marc
Norman, OK - Synergy N7, TREX 700N DFC, TSA 700N, TSA 600N, Trex 550, Trex 500 ESP (FBL), 450L, RCHN - 700
mqowen is offline        Reply With Quote Quick reply to this message
Old 05-04-2018, 08:56 PM   #8 (permalink)
Registered Users
 
Posts: 3,150
 

Join Date: Apr 2007
Location: UK, Kent coast
Default

I just got one (the 50F) after having it highly recommended as a buffer pack with a Jive 120. So the goal was mainly as a buffer but it will provide just enough power to land in the event of a BEC failure.

I have not flown with it yet but will do soon, just need to get the optimum settings for the RX voltage alarm in order to have the best early warning but not have false alarms.

I have it mounted so that I can reach the button that turns it off.
Attached Thumbnails
Click image for larger version

Name:	R2buffer.JPG
Views:	298
Size:	132.9 KB
ID:	744944  
__________________
2009 TDR, Kasama Dune and Faifa, Minicopter Triabolo 700, RMJ Raptor gasser,
Beam E4 and Avantgarde, JR E8 leggero, Suzi Laos, Shape S8, TDRex 800, Rave 450, Trex 500.
trillian is offline        Reply With Quote Quick reply to this message
Old 05-04-2018, 09:29 PM   #9 (permalink)
Registered Users
 
Posts: 1,207
 
My HF Map location
Join Date: Jul 2008
Location: Melbourne, Victoria, Australia
Default

I supply these in Australia.

Click image for larger version

Name:	R2-BUF-350-RTFV4.jpg
Views:	137
Size:	17.1 KB
ID:	744945

Click image for larger version

Name:	R2-BUF-350-RTFV4_1.jpg
Views:	172
Size:	127.7 KB
ID:	744946

Click image for larger version

Name:	R2Buffer.jpg
Views:	132
Size:	9.9 KB
ID:	744947

Click image for larger version

Name:	R2-BUF-325-RTFV4_2.jpg
Views:	150
Size:	129.7 KB
ID:	744948

Very good units, reasonably priced. Will fit most slightly larger helis easily, maybe not 450's.
The 3 x 25F pack is slightly more squat than the 3 x 50F shown, capacitors are just a bit less tall.
There are V3 units still available, but these V4 units are a little more capable these days in terms of circuitry.

The following is a description:

Version V4

Feature Overview:

- 32 bit, 48MHz MCU controlled operation
- Adaptive charging
- Current sensing
- Output for external Alarm*

Operation Range:

- Backup Battery for electric Helicopters for safe emergency landing
- Buffer surge currents on high power model airplanes and helicopters
- Effective buffering of servo reverse current
- Automatic setup**

Maximum Ratings:

- Maximum Voltage (INPUT) 10V
- Maximum buffer Voltage (OUTPUT at full charge) 8.5V
- Surge current 25 Amp

CONNECTIONS, LEDs and BUTTON:

AUX: 3-pin solder port for auxiliary connections*
BUTTON: shutdown system after use
FULL: (green) indicate full charge
60%: (green) indicate 60%-80% charge
20%: (yellow) indicate charging active (blinking) or 20%-60% charge (solid)
PWR: (red) indicate system standby (solid) or setup (blinking after startup) or buffer active (blinking during normal operation)

OPERATION:

10) Connection: Install buffer to a free port on your FBL or Receiver
11) Power on your Model
12) The buffer unit detects operating conditions automatically (red LED is flashing)
13) Charging will start when setup is complete (yellow LED is flashing)
14) Green LEDs indicate charging state
15) When charging is complete, yellow LED is constant on
16) Whey system is supplying current (buffering surges, servo reverse current or emergency supply) red LED is flashing
17) After flight, first power down model
18) Press button to shut down system
__________________
Andy
Australian AVIrem Stickmover Distributor
www.jetiaustralia.com
[email protected]
AndrewJHawes is offline        Reply With Quote Quick reply to this message
Old 05-04-2018, 09:35 PM   #10 (permalink)
Registered Users
 
Posts: 7,929
 

Join Date: Jun 2009
Location: Edmonton, Alberta, Canada
Default

Put them on all my Helis. You can get them from AeroPanda.com
Attached Thumbnails
Click image for larger version

Name:	DD03741A-9861-45D8-A589-5DCD8868C0FF.jpg
Views:	305
Size:	88.6 KB
ID:	744949  
trillian likes this.
__________________
Diabolo 600, Synergy-696, Custom E5SS, soXos Strike 7, Logo 600, 200, VCT, VBar, Egodrift, Scorpion, MKS, XPert, KST
Freeskiken is online now        Reply With Quote Quick reply to this message
Old 05-04-2018, 09:40 PM   #11 (permalink)
Registered Users
 
Posts: 1,207
 
My HF Map location
Join Date: Jul 2008
Location: Melbourne, Victoria, Australia
Default

Here is the 3 x 25F version:

Click image for larger version

Name:	bilder_nologo-R2-BUF-325-RTFV4.jpg
Views:	171
Size:	15.2 KB
ID:	744950
trillian and Hicksy like this.
__________________
Andy
Australian AVIrem Stickmover Distributor
www.jetiaustralia.com
[email protected]
AndrewJHawes is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 05:16 AM   #12 (permalink)
Registered Users
 
Posts: 769
 

Join Date: Jun 2012
Default

I am working to convert my models from Optipower to R2.

Anyone know the big difference between the 25F and 50F?
I imagine it is discharge time?
__________________
Citizen 823
Support Your Local Hobby Shop
shua is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 07:19 AM   #13 (permalink)
Registered Users
 
Posts: 3,307
 

Join Date: Mar 2012
Location: Wauwatosa, WI
Default

It's really discharge time vs size. Bigger size equals more holding power.

Even the big one weighs very little. You can use that down to a 550 size comfortably. Below that, the 25F starts to make more sense.

If all you're trying to do is even out current spikes, then it's a lot easier to mount a simple capacitor in your power system.

Something similar to this. https://www.amainhobbies.com/lrp-bec...p80135/p148201

I've gotten them included with a couple of Hobbywing ESCs that I've bought.
__________________
P Max v2, G570, N556, XL520, S516, P380x2, XK K110, Open-TX
JWeber is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 07:28 AM   #14 (permalink)
Registered Users
 
Posts: 769
 

Join Date: Jun 2012
Default

Thanks JW

I use the HW caps with my builds now with the Optipower backup gaurds. But I am looking to move over to R2, no more extra lipo to manage and you make another great point I had not thought of yet! No more HW cap necessary!!

So I preorded a few R2s. I will be putting the 50F in 500 size and up, and I picked up a 25F for my G420 Sport.
__________________
Citizen 823
Support Your Local Hobby Shop
shua is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 09:07 AM   #15 (permalink)
Registered Users
 
Posts: 2,617
 

Join Date: Jan 2010
Location: Massachusetts
Default

There the best I use 25F on all my helis .

Sent from my SM-G900P using Tapatalk
Magneto is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 03:15 PM   #16 (permalink)
Registered Users
 

Join Date: Dec 2015
Default R2 buffer pack

Quote:
Originally Posted by Magneto View Post
There the best I use 25F on all my helis
thatís a pretty small size for most. you use those even on the large models?

how long does that last?
etherbatxx is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 05:12 PM   #17 (permalink)
Registered Users
 
Posts: 2,617
 

Join Date: Jan 2010
Location: Massachusetts
Default

At least 30 to 45 seconds depending on the servos brushless tend to consume less juice,The two incedences I have had were under 5 seconds and I saved both, One was a pack disconnection and the other a failed motor the ESC went into hardcutoff shutting down the bec too.The 50F is great for if you want longer power duration but these emergencies happen very fast and in most cases the heli will be on the ground in under 10 seconds, The R2 buffer has been in production since 2010 and has gone thru a few revisions ,See here V1 https://www.rc-heli.de/board/showthr...ght=green+caps V3 https://www.rc-heli.de/board/showthr...ght=green+caps V4 https://www.rc-heli.de/board/showthr...ghlight=buffer V4 manual https://www.mhm-modellbau.de/downloa..._Anleitung.pdf
Raptorapture and trillian like this.
__________________

Last edited by Magneto; 05-20-2018 at 05:36 PM..
Magneto is offline        Reply With Quote Quick reply to this message
Old 05-20-2018, 05:26 PM   #18 (permalink)
Registered Users
 
Posts: 7,929
 

Join Date: Jun 2009
Location: Edmonton, Alberta, Canada
Default

I put the 50F on all mine. They are not that small but they will fit. On some I have them on the side near the bottom. This is on a Synergy 516. Depends on the BEC Voltage 30-35 seconds usually
Attached Thumbnails
Click image for larger version

Name:	CF5276BE-40D9-423E-B190-E58272E8D73D.jpg
Views:	219
Size:	57.9 KB
ID:	746222  
__________________
Diabolo 600, Synergy-696, Custom E5SS, soXos Strike 7, Logo 600, 200, VCT, VBar, Egodrift, Scorpion, MKS, XPert, KST
Freeskiken is online now        Reply With Quote Quick reply to this message
Old 05-22-2018, 09:31 PM   #19 (permalink)
Registered Users
 
Posts: 1,584
 

Join Date: Aug 2006
Default

Highly recommended. Already saved my heli once due to the esc shutting down.

https://www.aeropanda.com/collection...cts/r2-buf-350
Attached Thumbnails
Click image for larger version

Name:	20171222_154339.jpg
Views:	221
Size:	126.7 KB
ID:	746361  
Martinshelis is offline        Reply With Quote Quick reply to this message
Old 05-23-2018, 12:50 AM   #20 (permalink)
Registered Users
 

Join Date: Dec 2014
Location: always windy on the east coast
Default

Quote:
Originally Posted by Martinshelis View Post
Highly recommended. Already saved my heli once due to the esc shutting down.

https://www.aeropanda.com/collection...cts/r2-buf-350
were you using a tribunus when it shut down?
Martinshelis likes this.
__________________
a bunch of helis... now all vcontrol and neo..finally :lol
tonys-heli is online now        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in


Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © Website Acquisitions Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

SEO by vBSEO 3.6.1