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t-rex 700e dfc batteries for sillyness flying

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  • #1

    t-rex 700e dfc batteries for sillyness flying

    morning all , i have purchased a rex 700e dfc from lee mister this will be my first 700 electric sooooo , i don`t want long flight times , it will be used flat out , and will hope for the best . do yar all recon 4000 40c packs would give me a 4min flight , i have the upgrade gears on the way by the way , sooo , from all you real world users , will 4000 be enough , wanna keep light ya see

    if this has been asked to death before , could someone post the like please

    maj ........ were do you get them hayin batts from

    razz
    Seaking
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  • #2
    I had a 700E v2, I used the align 5200's / opti 5000s / Gens ace 5300s and used to get 6 minutes comfortably of big air/sport/mild 3d flight with it. Literally 40% left in the packs when it came down.

    If your using the stock align gear I should think 4000's would give you 4 minutes absolutely no bother whatsoever.
    NONE OF THE BELOW HELI'S ARE OWNED BY ME ANY MORE
    TT Raptor G4 + Vbar     | MCPX V1 + HP05 Brushless & All the upgrades | 130x Stock | Henseleit TDR 2013 +Vbar | 450L DOMINATOR 6S + Mini Kbar | Logo 550SX +Vbar Mini
    Proud wearer of the EGS award!

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    • #3
      Hayin lipos are available from Chris Dorling at Electriflyer.
      BIG BAD DOM
      Compass 7HV, Compass 4926-510KV motor, AR7200BX, Castle Ice2 120HV, MKS BLS950/980 servos
      Mikado Logo 600SE Uvular,       Scorpion HK4035-330KV, Ikon flb, 12s setup
      SAB Goblin 500, Quantum 4115-1200KV motor, AR7200BX, Kontronics Koby 90, MKS DS9670A+ servos, Align DS650
      Eflite Blade 130X, 8000kv outrunner, all Lynx upgrades including DFC head

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      • #4
        4000 packs are the perfect size for the 700, I've tried both 4000's and 5000's in mine and the 4000's are the sweet spot imo.

        George
        George

        sigpic         4x E        GS



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        • #5
          Cheers , good replies , just what I like to hear
          Seaking

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          • #6
            jonesheli , i`m interested in headspeeds , with my 500 , and 550 etc , i ran them screaming , as you have the said heli , is it actually needed
            Seaking

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            • #7
              2000 in iu2 is more than enough for decent 3d but there's more there if you really want it, go over 2000 and flight time drops quite a bit for not much more gain IMO. 1980hs is enough for me and I get 6 mins in total using 4000's (inc spool up and landing etc)
              There's plenty power at that speed but crank it right up and with 4000's you'll end up with 4 mins though. :-)


              George
              Last edited by George J; 22-01-2013, 01:30 PM.
              George

              sigpic               4x E              GS



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              • #8
                Re: t-rex 700e dfc batteries for sillyness flying

                I ran it with opti 5000. 4.00 mins spanking at 2150 and its a beast.
                Or I ran 1900 steady flying I would get 6 to 7 mins.
                protos maxv2
                TREX 700e DFC DOMINATOR
                RC HELI NATION
                CITIZEN NO
                278

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                • #9
                  hello there , nice one chap
                  Seaking

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                  • #10
                    My preference if you want a balls out 700 DFC is to go with around 2150 headspeed and a light set of batteries with a good C rating. Weight makes a big difference in a heli's performance and is often over looked.

                    Batteries wise - I would recommend these Opti 50C 4300's. Optipower - OPTIPOWER ULTRA 50C LITHIUM PACK
                    Sponsored by - Align - CSM Gyro's - OptiFuel/OptiPower - Kontronik Drives UK
                    Align 700E DFC
                    www.robochallenge.co.uk

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                    • #11
                      I always run align 5200mah packs, If you run 2250 or 2300 you get 4:00 or 2200 gives me 4:30, 1950 is about 5-6 great packs had 80 on one of my sets and still going very very strong on castle link they hold a constant voltage for the whole flight!

                      Ben
                      Trex 700E DFC Beast X, Trex 550 DFC Beast X, Msh Protos Beast X, Blade 130x

                      Flying for: Rcheliguru, Robbe UK and Spin Blades

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                      • #12
                        Hey.

                        I'd suggest the 5000 30c OptiPower packs, I'm using these myself and think they are a great compromise between weight and capacity.

                        A lot of pack size decision depends on how hard you fly. On my own 700E DFC I get 4:20 from this size Opti's at around 2000 rpm if I am really going for it. Sometimes I come down with 30/38% left in the pack if I am learning something new and less aggressive, but if you like your tic toc maneuvers which are power hungry, anything less than 5000 is marginal.
                        The 700E isn't a lite model so will consume more power as a result.
                        .
                        Ian Contessa
                        Robbe SchluterUK / Midland Helicopters / Align



                        Coolice Power Supplies
                        Coolice Custom Built Charge Case's

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                        • #13
                          cheers everyone , i`ll no doubt go zippie 40c 4000 to start with , they cheap and will get me in the air , i`ll then was the other at the field on the opti`s , shes now here and on my bench , can`t wait
                          Seaking

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                          • #14
                            If they are in stock highly recommend Gens Ace 4000, 25c. The C rating is very conservative or not exaggerated depends how you look at it. Giant Shark is the place. Haiyin I got direct from factory Europe warehouse. You'll enjoy that 700, George's is a great Heli.

                            Extra capacity doesn't come for free the cost is weight and that takes power to move around. There is a point where to light yields less time but 4000's is about a happy medium on a 700. A lot depends on setup, motors, blades, rpm, style etc so one size doesn't fit all but it's a good starting point.

                            JP has 8 Gens stick packs made up why not try one before you commit.

                            MJ
                            Last edited by maj; 22-01-2013, 06:42 PM.

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                            • #15
                              i'm running 4000mah 40c turnigy blue on mine and it is good for 4 mins with HS about 2050. i'm at the edge though on what you can take out the packs reliably so if your spanking it i'd get 4500mah ish, zippy do make one.

                              cheers

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