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  1. #1

    Join Date
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    a 123 bateries

    I have a 180 mercury serial # 081091 with ecu HWVER. 97 08 01 SWVER 5. 33 that came as a complete unit.
    I have another 180 mercury serial # 801027 with ecu HWVER 97 08 01 SWVER 5.31 and 2 engine data terminals with 8.4 volt 110 mah batteries.
    My question is can I replace the 8.4 volt battery in the edt with 9 volt battery and can I use 3 cell A 123 battery for my ecu. What if any changes must I do to persue this endeavor?
    I am a newbe to turbine engines and would greatly appreciate any and all information on my road to a first flight. glenr

  2. #2

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    RE: a 123 bateries

    Yes you may do it. But watch for the magic blue smoke.

  3. #3
    BaldEagel's Avatar
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    RE: a 123 bateries

    A123's come off the charger at 3.6volts per cell so you will have 10.8 volts off the charger, a two cell LiPo comes off the charger at 8.4 volts, so you are taking a chance, the A123's will settle down to a voltage of 9.9 vlots after about half an hour, but that is still over a two cell LiPo, why not contact the manufacturer and ask what the maximum voltage the ECU can take, On the JetCat ECU they operate on a two cell LiPo, but if you wish to use a three cell A123 it needs mods, some have used them without the mods with success, but others have had them smoked.

    Sorry I can't be more positive, but would hate to see your ECU burn up eventually.

    Mike
    My Gast is Flabered.
    No matter what anyone say's 100% is the maximum you can get.
    If you see a deleted post, my Avatar say's it all.


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