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What type of Batteries are you using on your Giant Scale?
06-28-2010, 07:42 PM
#26
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RE: What type of Batteries are you using on your Giant Scale?
I believe Fromeco is making large parallel LiFe packs. I have not heard of anyone making up parallel packs for true A-123 batts but there's nothing stopping anyone from doing so.
The technology and performance is so close between LiFe and A-123 it's not worth a penny's debate over performance and life cycle.
The technology and performance is so close between LiFe and A-123 it's not worth a penny's debate over performance and life cycle.
06-28-2010, 10:06 PM
#27
RE: What type of Batteries are you using on your Giant Scale?
NiMH (though the poll has "Ni-Ma", and I assume that was what was ment). On my Ultimate I use a redundant 1450 mAh x2 set-up with a Smart-Fly BattShare and two switches. On my others just a single 2000 mAh pack and switch.
06-28-2010, 10:22 PM
#28
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RE: What type of Batteries are you using on your Giant Scale?
liFe seems to be as rugged as the nicads, handles storage in hot or cold environments, so I've gravitated to them for most of my flying, the nimh are pretty tough too and using them on several smaller 26cc size. I kind of hate Lipo because they have short lifespans (1 season if you take care of it) but nothing beats their weight savings so they have a place in competition type models. Also, it seems so counterintuitive to have to run a battery pack through a voltage reducing resister that gets pretty hot (thereby using energy...) Never had a problem charging the lipo's, use the CUBE from TBM. Anyone have words of advice on Lipo care, should they be expected to last more than one season? Thanks.
06-28-2010, 11:16 PM
#29
RE: What type of Batteries are you using on your Giant Scale?
I had a battery completely end it's life cycle on me in flight. Had the plane not had a redundant battery it would be history now.
06-28-2010, 11:27 PM
#30
RE: What type of Batteries are you using on your Giant Scale?
The OP didn't define what he considers giant scale. Just from reading the posts I think there are many opinions of what is giant scale. Myself I define it as about 33~35% and up....
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
06-28-2010, 11:29 PM
#31
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RE: What type of Batteries are you using on your Giant Scale?
ORIGINAL: Super08
The OP didn't define what he considers giant scale. Just from reading the posts I think there are many opinions of what is giant scale. Myself I define it as about 33~35% and up....
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
The OP didn't define what he considers giant scale. Just from reading the posts I think there are many opinions of what is giant scale. Myself I define it as about 33~35% and up....
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
Agreed
06-28-2010, 11:32 PM
#32
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RE: What type of Batteries are you using on your Giant Scale?
ORIGINAL: Super08
The OP didn't define what he considers giant scale. Just from reading the posts I think there are many opinions of what is giant scale. Myself I define it as about 33~35% and up....
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
The OP didn't define what he considers giant scale. Just from reading the posts I think there are many opinions of what is giant scale. Myself I define it as about 33~35% and up....
For instance a NiMh is fine on a 27% or so, but I wouldn't get caught dead trying to use one on a 42% plane with high power servos.
I also think we need to clarify some of the nomenclature in the poll.
I assume that
A123/LiFe is A123
Ni-Ca is meant to be NiCd
Ni-Ma is meant to be NiMh
Lipo - LiPo
06-29-2010, 12:00 AM
#33
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RE: What type of Batteries are you using on your Giant Scale?
And of course lithium ion, or Li-on.
I use the IMAA defination of 80" and above to define an entry level giant. Too many 72" glow monoplanes out there that could never truly make giant category even if they met the IMAA quarter scale rule.
I use the IMAA defination of 80" and above to define an entry level giant. Too many 72" glow monoplanes out there that could never truly make giant category even if they met the IMAA quarter scale rule.
06-29-2010, 08:03 AM
#34
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RE: What type of Batteries are you using on your Giant Scale?
I have been using NiMH on my planes up to 50cc.
I just completed my first 100cc plane (paint splotch matt chapman cap from GP), well I still need to do some things like set the throws etc., and used LiPO.
I just completed my first 100cc plane (paint splotch matt chapman cap from GP), well I still need to do some things like set the throws etc., and used LiPO.
06-29-2010, 09:58 AM
#35
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RE: What type of Batteries are you using on your Giant Scale?
My 1/3 scale GTM DR1, my 94 lb 44% Zoroli DR1 and my scratch half scale D6 (86lbs) all run 4200 NIMH packs. 4 total for each plane; 2 for the radio, 1 for the engine, 1 for the smoke system. Very safe and reliable..........
06-30-2010, 06:21 PM
#39
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RE: What type of Batteries are you using on your Giant Scale?
ORIGINAL: Tired Old Man
35% and above: Two 2,300 ma A-123 for flight system, one 4.8v 2,000 ma Eneloop nimh for ignition.
Below 35%: One 2,300 ma A-123 for flight system, One 4.8v 2,000 ma Eneloop nimh for ignition.
Option for below 35%: Two 1,100 ma A-123 for flight system, one 4.8v nicd (size above 800 ma) for ignition.
35% and above: Two 2,300 ma A-123 for flight system, one 4.8v 2,000 ma Eneloop nimh for ignition.
Below 35%: One 2,300 ma A-123 for flight system, One 4.8v 2,000 ma Eneloop nimh for ignition.
Option for below 35%: Two 1,100 ma A-123 for flight system, one 4.8v nicd (size above 800 ma) for ignition.
I use similar but with this change.
Substitute A123 for ignition on all and on below 35% I run the ignition off one of the (2) a123's
09-19-2010, 02:38 PM
#40
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RE: What type of Batteries are you using on your Giant Scale?
I use two 1700mah LiFe's, one 2700mah LiPo and one 4.8v NiMh
1700mah 6.6v LiFe > HD Switch > BattShare > Receiver Ch:9
1700mah 6.6v LiFe > HD Switch > Battshare > Receiver Ch:8
850mah 11.1v LiPo > Smoke Pump
2700mah 6.0v NiMh > Switch > 6v Regulator > Ignition
The regulator simply keeps things at 6v for the ignition. A fully charged 6v battery can get up as high as 7.0 volts or more.
Edit: I use Hyperion LiFe and LiPo.
1700mah 6.6v LiFe > HD Switch > BattShare > Receiver Ch:9
1700mah 6.6v LiFe > HD Switch > Battshare > Receiver Ch:8
850mah 11.1v LiPo > Smoke Pump
2700mah 6.0v NiMh > Switch > 6v Regulator > Ignition
The regulator simply keeps things at 6v for the ignition. A fully charged 6v battery can get up as high as 7.0 volts or more.
Edit: I use Hyperion LiFe and LiPo.
