Battery for Jetcat ECU
 

What kind of batteries can be used with a Jetcat ECU. My STP5 turboprop came with a 2 cell 7.4 V Lipo battery but I was wondering if I could use a 9.9 V Life battery.

The reason for asking is that I use this 9.9 V Life batteries in all my other Jetcentral turbines and it would be nice to be able to just have one type of batterie in order to standardize.

RE: Battery for Jetcat ECU
 

You have to send the ECU to Jetcat & have it modified to accept 9.9V LIFE. I had my 160SX modified for 9.9V A123 several years ago, works awesome.
Jerry

RE: Battery for Jetcat ECU
 

i think they put a a123 sticker on the ecu if mod is done
vinny

RE: Battery for Jetcat ECU
 

If it is a V10 ecu (rx motors) it is already set up for A123 (9.9v) batts
Vin...

RE: Battery for Jetcat ECU
 

I did not get a sticker from JetCat Germany or from JetCat US, on the Germany modified one the input multiplex plug was changed to a red one, on the US changed one the case was marked 12v with a felt tip pen, both ECU's where version 6.0 if I remember correctly.

Mike

RE: Battery for Jetcat ECU
 

What capacity of A123 9.9v battery are you using? And how many start up/cool down are you getting out of the pack?

RE: Battery for Jetcat ECU
 

I'm using three 2300 mAH A123's from Electrodynamics in a Kingcat. Two for the receiver, and one for the ECU. Ten servos (eight digital) are pulling approximately 500 mAH per eight minute flight, giving me two to three flights with a comfortable safety margin.
Jerry

RE: Battery for Jetcat ECU
 

Today I was able to check my ECU and noticed that it doesn't have the option of using Life..... Just a 2 cell Lipo and a Nicad. Could it be because my turbine is not kerostart ?

RE: Battery for Jetcat ECU
 

You can go into the ecu and change the number of cells. Im running a 3 cell A123 . The ECU comes back from Jetcat with instructions on how to adjust the number of cells in the ecu

RE: Battery for Jetcat ECU
 

That's why you have to send it to Jet Cat to have them make it compatable. It has nothing to do with kerostart.

RE: Battery for Jetcat ECU
 

So you only get two to three starts with a 2300 mah A123?

RE: Battery for Jetcat ECU
 

JetCat USA modified one of my ECUs earlier this year to run on a 3 cell A123. The instructions that came back with it said to set it to 8 cell NiCad, which is pretty close to the same voltage as a 3 cell A123.

RE: Battery for Jetcat ECU
 

I recently shopped for a LiFe battery replacement for my P80SE, and they were extremely hard to come about. I decided to buy a 7.4 LiPo that Dreamworks carries. It is a ROAR certified package by Exceed R/C (for R/C cars). It comes on a very hard case, which in my opinion is far more robust than the packages we are used to.

I like it so far. LiPo is goo stuff for kero starts, but they do need careful handling.

David

RE: Battery for Jetcat ECU
 

I could get more starts than that, but as noted, am using approx. 500 mAH per flight, and I prefer and large reserve safety margin.
Jerry

RE: Battery for Jetcat ECU
 

The p-100 uses 200-250mAh from start to flight to cool down. I use a 3cell 2100mAh LiFe from jetcat.

RE: Battery for Jetcat ECU
 

Correction, I was referring to my receiver mAH usage, not the ECU. I believe you are correct for the ECU usage.

Jerry

RE: Battery for Jetcat ECU
 

So how many flights do you get with this battery? 7 to 8 start up and cool down?

RE: Battery for Jetcat ECU
 

As stated above, three flights. I'm super cautious.
Jerry

RE: Battery for Jetcat ECU
 

After about 5-6 I don't feel comfortable flying without charge so I do charge. I can go to 7-8 but am uncomfortable not charging. I also use an external fan too help with the cool down to save ecu battery. My Rx battery takes about 200mAh each flight and I have two 2500mAh A123 packs. I don't have to charge theses until I'm out of 6gal of jet-a (about 10 flights).

I just finished read jetcat manual for ECU version 10.It was written that the ECU can be used with 2-3 cells Li-po and 3 cells LiFe.Do anyone try 3 cells LiPo?