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  1. #16

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by Ashtom View Post
    Boat weighs in around 1600 full of fuel and part loaded but not including people. With 2-3 guys and water and extra gear I estimate boat comes in about 1800-1900kg. That's not including trailer.

    BMT around 2200kg full of fuel. Trailer is 600kg.

    I was a bit sceptical at first but it works well. Can drive it with MK against tide in fast flowing channel mid tide and it does it. Haven't been in a situation yet where it can't spot lock and hold within about 5 metres of mark but I haven't used it over about 20/25km winds yet.

    Hope that helps. Bear in mind the MK and batteries add weight too. I think overall the setup adds about 120-130kg or thereabouts. My trailer is electric over hydraulic as it was tipping over the 2T. The overall BMT weight can be an issue if trying to keep under 2T

    Sent from my [device_name] using Ausfish mobile app

    thanks mate. My 6.2 will be around 2.5t on alloy trailer. Think I will need the 36v unit.

  2. #17

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by jclay1773 View Post
    thanks mate. My 6.2 will be around 2.5t on alloy trailer. Think I will need the 36v unit.
    The 36v would well and truly work great. I forgot to add my boat has about 320L water ballast. I guess it is pulling that around as well.

    Sent from my [device_name] using Ausfish mobile app

  3. #18

    Re: Minn Kota instead of anchor?

    How much does it roughly cost to fit and install? Iím looking to retrospectively add to one to a bar rusher 575c

  4. #19

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by hweebe View Post
    How much does it roughly cost to fit and install? Iím looking to retrospectively add to one to a bar rusher 575c
    a few factors in mind.. batteries etc.. but change out of 5k..... depending on batteries etc.

    Moose

    Marine outfitting solutions
    www.moosemarine.com.au

  5. #20

    Re: Minn Kota instead of anchor?

    Ok. Great feedback everyone. I have a 685 CC so Iíd definitely need the biggest model. And mounting will be interesting - any examples of this?
    I havenít considered the Motirguide so Iíll have check this out.

  6. #21

    Depth of discharge (DOD) - Heads up

    Just an observation & something that a lot of people don't realise when it comes to deep cycle batteries. DOD (depth of discharge) Most deep cycle batteries really should only be taken down to 50% of their charge (50amps on a 100 amp battery) - there are some exceptions with the most notable being "Lithium" LiFePO4 which can be pulled down to as low as 10% .

    While a deep cycle battery can be drawn down lower - it's not only not recommended Ö.. It's actually destroying the battery . Eg a battery that is drawn down to 50% only - will have a life of around 1000 cycles. On the other hand if you draw it down to 25% that same battery will have a life of around 300 cycles .

    Where I'm coming from is that - offshore spot locking usually consumes a lot of charge during a days fishing ( I've pulled out 50% from a 200amp battery) . So unless you want to be buying new batteries every few years ( or less) - either go bigger batteries (120 / 150amp) or spend the money & go with Lithiums (LiFePO4).

    Offshore spot locking is still a relatively new trend - so we haven't really heard too much on this issue as yet ÖÖ but you will & so it's worth noting if you plan to get into it .

    Chris
    Give a man a fish & he will eat for a day !
    Teach him how to fish
    & he will sit in a boat - & drink beer all day!
    TEAM MOJIKO

    Seller's Items


  7. #22

    Re: Minn Kota instead of anchor?

    Thatís a very good point Nagg. Considering @50% DoD is really bringing a battery down to 12.30-12.35volts before you start killing it, you would want a very strict charging regime to ensure that your house battery is absolutely maxed out before using it for spot lock duties. I would be definitely going LiFePo4 or even better LTO lithium batteries before using spot lock for offshore fishing.
    Democracy: Simply a system that allows the 51% to steal from the other 49%.

  8. #23

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by Lovey80 View Post
    Thatís a very good point Nagg. Considering @50% DoD is really bringing a battery down to 12.30-12.35volts before you start killing it, you would want a very strict charging regime to ensure that your house battery is absolutely maxed out before using it for spot lock duties. I would be definitely going LiFePo4 or even better LTO lithium batteries before using spot lock for offshore fishing.

    You would never use a house battery for spot lock duties. You want 3 dedicated batteries if going a 36v system. This means that I will be running 5 batteries.

  9. #24

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by Lovey80 View Post
    Thatís a very good point Nagg. Considering @50% DoD is really bringing a battery down to 12.30-12.35volts before you start killing it, you would want a very strict charging regime to ensure that your house battery is absolutely maxed out before using it for spot lock duties. I would be definitely going LiFePo4 or even better LTO lithium batteries before using spot lock for offshore fishing.
    Most people have stand alone batteries for their electric motors which are not part the boats electrical system - But that said some do use DC/DC chargers as part of a battery management system & their electric motor batteries are part of that . I looked into that option but I couldn't find a system that could cater for LiFePO4 batteries .
    Honestly sometimes keeping it simple is the way to go Ö.

    In the end - people just need to be aware of how much power can be drawn when spot locking ÖÖ unfortunately I have heard too many times people say "I went a full day spotlocking without flattening the battery" - yeh ok , but how much charge was left ? ÖÖ most wouldn't know .



    Chris
    Give a man a fish & he will eat for a day !
    Teach him how to fish
    & he will sit in a boat - & drink beer all day!
    TEAM MOJIKO

    Seller's Items


  10. #25

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by NAGG View Post
    Most people have stand alone batteries for their electric motors which are not part the boats electrical system - But that said some do use DC/DC chargers as part of a battery management system & their electric motor batteries are part of that . I looked into that option but I couldn't find a system that could cater for LiFePO4 batteries .
    Honestly sometimes keeping it simple is the way to go Ö.

    In the end - people just need to be aware of how much power can be drawn when spot locking ÖÖ unfortunately I have heard too many times people say "I went a full day spotlocking without flattening the battery" - yeh ok , but how much charge was left ? ÖÖ most wouldn't know .



    Chris
    One of these helps, tells you what's happening all the time and so long as you don't disconnect it at the end of the day will tell you exactly how much you've used in volts, amps, watts also tells you the peak loads.

    https://www.ebay.com.au/p/12v-150a-D...37b755fffa4971

  11. #26

    Re: Minn Kota instead of anchor?

    Requested a quote from my local boat dealer SCM to fit and install a suitable Minn Kota / Battery etc on a Bar Crusher 575c (which they are a distributor of both Minn Kota and Bar Crusher) and get this response.....
    "You would need to have a plate fabricated and installed pryor to us being able to quote this properly for cable length etc."

    I know its not a common thing to get on a Bar Crusher but this was not really the customer service i was looking for.
    Does anyone one know a fabricator in Brisbane who could assist.

  12. #27

    Re: Minn Kota instead of anchor?

    regarding the draw down issue
    i just used cheap lead acid the century n70t 105 amp models and treated them like shit knowing it was only $209 to $250 each to replace them
    if they last 2-3 seasons then that was good enough for me compared to buying more expensive units.

    just factored it in as the cost of using the boat

  13. #28

    Re: Minn Kota instead of anchor?

    Quote Originally Posted by NAGG View Post
    Most people have stand alone batteries for their electric motors which are not part the boats electrical system - But that said some do use DC/DC chargers as part of a battery management system & their electric motor batteries are part of that . I looked into that option but I couldn't find a system that could cater for LiFePO4 batteries .


    Chris
    http://www.gsl.com.au/voltage-double...e-circuit.html

    Hey Nagg,
    I'm looking at these at the moment for a DC-DC charging system. Just need to talk to my battery guy and see what he thinks.

    TMC

  14. #29

    Re: Minn Kota instead of anchor?

    A pro boat i know that has one just runs a gennie. It would be heaps cheaper.

  15. #30

    Re: Minn Kota instead of anchor?

    When the lithium batteries are a little more affordable I will definitely swap out my agmís but canít justify the $$ atm. Would really like the weight loss for the front of the boat but.

    Just get yourself a Trollbridge installed for charging the batteries by the outboard when underway and an on board charger (Iím running a Promariner 20 on my Galeforce) for battery charging/conditioning. Donít waste time with a 24v charger through the Anderson plug 🤐🤐

    You can also get battery combiner set up to utilise your trolling motor batteries to start the outboard in an emergency.
    You can't be neutral on a moving train

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