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AMT ECU Battery for Pegasus
Hi,
I have an AMT Pegasus engine and it has a 9.6V Nicad ECU battery with it. I would like to use a more modern battery but am not sure what voltage the ECU can handle. I have heard that 12v is ok but I do not know for sure. Hopefully I can use a 3 cell A123/Lipo? Thanks for the help -Carl<br type="_moz" /> |
RE: AMT ECU Battery for Pegasus
3 cell LiPo works just fine... ECU Works from 7.2v to 14.0v. The Pegasus and Olympus need at leas 9.6, The Mercury will work fine on a 2 cell LiPo..
Danno |
RE: AMT ECU Battery for Pegasus
Hi,
Thanks for the reply! Thats good to know, I assume 3500-4500mAh would be good as well for a day of flying? Thanks again, -Carl |
RE: AMT ECU Battery for Pegasus
ORIGINAL: cbooth1979 Hi, Thanks for the reply! Thats good to know, I assume 3500-4500mAh would be good as well for a day of flying? Thanks again, -Carl Craig |
RE: AMT ECU Battery for Pegasus
What version ECU do you have? I don't think they early ECU's will like Lipo Power. Not to mention... there is no guard in them, keeping them from over discharging the Lipo. And... as above... if you use more voltage... the pump, starter, and glow voltages will be off, and need to be re-adjusted. (for a V2 ecu)
Just throwing in my 2 cents. |
RE: AMT ECU Battery for Pegasus
ORIGINAL: Dr Honda What version ECU do you have? I don't think they early ECU's will like Lipo Power. Not to mention... there is no guard in them, keeping them from over discharging the Lipo. And... as above... if you use more voltage... the pump, starter, and glow voltages will be off, and need to be re-adjusted. (for a V2 ecu) Just throwing in my 2 cents. Look at the ECU and note the version and engine serial number. Email AMT the information and the question to confirm. I think that v1's are stuck with NiCd or NiMH. Details on how to change the settings are on their website. Always change the settings with a NiCd pack. Be careful with the glow plug setting once a LiPo is connected. There is no low voltage protection, but with a 3Ah pack you will get at least 8 flights before a charge is required and it won't start if the voltage is too low. Regards Dr J |
RE: AMT ECU Battery for Pegasus
ORIGINAL: Doctor jet ORIGINAL: Dr Honda What version ECU do you have? I don't think they early ECU's will like Lipo Power. Not to mention... there is no guard in them, keeping them from over discharging the Lipo. And... as above... if you use more voltage... the pump, starter, and glow voltages will be off, and need to be re-adjusted. (for a V2 ecu) Just throwing in my 2 cents. Look at the ECU and note the version and engine serial number. Email AMT the information and the question to confirm. I think that v1's are stuck with NiCd or NiMH. Details on how to change the settings are on their website. Always change the settings with a NiCd pack. Be careful with the glow plug setting once a LiPo is connected. There is no low voltage protection, but with a 3Ah pack you will get at least 8 flights before a charge is required and it won't start if the voltage is too low. Regards Dr J Guys, The ECU will handle 7.2 to 14.0 volts... There is no setting anything... The ECU will only send the correct voltage to the pump and glow plug regardless what the input voltage is !! Ya'll are worrying about nothing... Plug it, go fly !!!! :) Danno |
RE: AMT ECU Battery for Pegasus
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ORIGINAL: rcjetsaok Guys, The ECU will handle 7.2 to 14.0 volts... There is no setting anything... The ECU will only send the correct voltage to the pump and glow plug regardless what the input voltage is !! Ya'll are worrying about nothing... Plug it, go fly !!!! :) Danno Craig |
RE: AMT ECU Battery for Pegasus
Graig,
I thought we were talking Version 1.... I don't know anything about V2... My bad.... Did he ever say what he had ??? Danno |
RE: AMT ECU Battery for Pegasus
ORIGINAL: rcjetsaok Craig, I thought we were talking Version 1.... I don't know anything about V2... My bad.... Did he ever say what he had ??? Danno Craig |
RE: AMT ECU Battery for Pegasus
Thanks for all the info guys, Im not sure what version it is either right now. The serial # on the engine/Ecu is 121030. I believe its a Pegusus Mk3 and the glow plug is manually lit and not connected to the ecu in any way....I think. I have the ecu installed right now so I cant see the #'s on the bottom , does it say what version it is anywhere?
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RE: AMT ECU Battery for Pegasus
FYI, This engine was bought new back someware between 1998-2000. Only run time logged is the 15min test from AMT! I think its time to use it in something...
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RE: AMT ECU Battery for Pegasus
If its vintage 1998 then it's,likely version 1 and if you are gong to run it manually you can run any 11.0v pack to power the ecu. If you are going to use an auto start box, talk to CraigG.
I have Flown over 6 flights before recharging and will likely only use only 400-600 mah on a 2200 mah 11.0 v lipo Good luck with it, they are rock solid motors just a lil heavier than other stuff on the market. |
RE: AMT ECU Battery for Pegasus
ORIGINAL: yeahbaby If its vintage 1998 then it's,likely version 1 and if you are gong to run it manually you can run any 11.0v pack to power the ecu. If you are going to use an auto start box, talk to CraigG. I have Flown over 6 flights before recharging and will likely only use only 400-600 mah on a 2200 mah 11.0 v lipo Good luck with it, they are rock solid motors just a lil heavier than other stuff on the market. So your saying to use a 3 cell lipo I assume? I know what your saying about the weight...its a tank for sure but its bulletproof like you said. Going to use it in my Ultra Flash for the time being and Im worried about it being way tail heavy. Would a 3 cell duralite pack (9.9V) be alright or do I need the extra voltage of the lipo? Again thanks to all for the help on this... -Carl <br type="_moz" /> |
RE: AMT ECU Battery for Pegasus
you can use a 3cell lipo amigo, and like danno said previously you will need a minimum of 9.6 v to run the ecu. I've used everything from 4000mah Nimh car. Pack - to the duralite 11v packs - whatever helps to balance cg. Recently I've switched to A123s for the Rx and 3cell lipos for the ecu and accepting any additional lead wt. the trade off with the lighter more powerful A123s and lipo is worth it..
Happy to help, along with everybody else. Cheers ORIGINAL: cbooth1979 Hi, So your saying to use a 3 cell lipo I assume? I know what your saying about the weight...its a tank for sure but its bulletproof like you said. Going to use it in my Ultra Flash for the time being and Im worried about it being way tail heavy. Would a 3 cell duralite pack (9.9V) be alright or do I need the extra voltage of the lipo? Again thanks to all for the help on this... -Carl |
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