Register To Comment
Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Fuses for LIPOs on Featherweights

  1. #1
    Roboteer

    Status
    Offline
    Name
    Infinite Monkeys Fighting Robots
    Location
    Stratford upon Avon
    Posts
    29
    Just double checking the rules and I've realised that we've not put a fuse in our robot for the LIPO.

    The battery is described as 30-40C at 2200mAh so we are looking at about 80A.

    How do people meet this requirement in their robots and suggestions on where to get them quickly?

    Thanks
    Steve

  2. #2
    Garfie489's Avatar
    Roboteer

    Status
    Offline
    Name
    Gareth
    Robots
    Dystopia (HW), Enforcer (FW), and Defector (FW)
    Location
    London
    Posts
    326
    Maxi Blade Fuse, available in all good motor stores - and some bad ones too :P
    My 3 loves - Rugby, Racing, and Robotics.

  3. #3
    For higher ampere values , car audio shops are the place to look.

  4. #4
    Roboteer

    Status
    Offline
    Name
    Infinite Monkeys Fighting Robots
    Location
    Stratford upon Avon
    Posts
    29
    Thanks. All sorted now.

  5. #5
    cjsowry's Avatar
    Roboteer

    Status
    Offline
    Name
    Chris Sowry
    Robots
    (HW) Luna-Tic (RiP). (FW) Luna-Tic, Crota & Raving Luna-Tic (BW) Claws2
    Location
    Whitchurch, Shropshire
    Posts
    106
    I forgot the fuse and stupidly bought the really chunky and heavy mega fuse. Are these the Maxi Blades your on about?
    https://www.amazon.co.uk/All-Trade-D...amp+maxi+blade

  6. #6
    Member

    Status
    Offline
    Name
    Chris
    Robots
    Spur 4 (FW), Titus (HW) , Team Nuts
    Posts
    549
    I use maxi fuses but with a fuse holder that I crimp my own leads to

  7. #7
    Roboteernat's Avatar
    Roboteer

    Status
    Offline
    Name
    Nat
    Robots
    Wanna Choppa (Axe FW) Short Circuit (HW RWs6) Locking Wheel Nuts (AW) DELLapidated bANTtery (AW) Lo
    Location
    Eastleigh, Hampshire
    Posts
    294
    Continuing using this post to ask another fuse related question.

    I have a 65-130c 3.3A lipo battery for my feather as well as a 35-70c 2.65A lipo both 4s.
    When calculating the fuse rating using the C value, do I use the maximum C rating, resulting in a maximum 429 amp fuse for the first and a maximum 185 amp fuse value for the second?
    In battle I would have to change the fuse accordingly if swapping battery but is this correct?

    How likely is it that if I standardise and fit a 150 or 100 amp fuse that it would blow on the bigger battery.

    Understand that it is to protect the lipo and stop it from drawing max but the minimum 65c rating is higher that the proposed 100 or 150 amp.

    Although I'm great at electronics, can someone just confirm fuse rating regards C please.

    Nat
    Last edited by Roboteernat; 5th August 2017 at 09:08.

  8. #8
    What are you powering?

    The drives in our featherweights are fused with a 40A bladefuse, using Neptunes or REC gearboxes with 540 motors.

    Kashei uses a primary fuse of 100A , and that has to take the brunt of an NTM5060 380KV motor powering the axe.

  9. #9
    Maxamuslead's Avatar
    Roboteer

    Status
    Offline
    Name
    Mark Smith
    Robots
    "Blacksmith" (FW) in a bag in bits "Forge Master" (FW) battle worn "Forge Master II" (FW) in CAD
    Location
    Lincolnshire, Threekingham
    Posts
    442
    Quote Originally Posted by maddox10 View Post
    What are you powering?


    Kashei uses a primary fuse of 100A , and that has to take the brunt of an NTM5060 380KV motor powering the axe.
    how well did the motor run the axe ? How much did you need to gear it down by ?

  10. #10
    The motor is running that axe for 3 events now. But as an axe it ain't very effective. As selfrighter it's great.

    Gearratio is about 25 to 1.
    Mod1 gears just shear off on the secundary and tertiary stages. So those are mod2.

Register To Comment

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •