80lb Minn Kota

[Muz11]

G'day,

I am currently running a 55lb SP on my 5m Full Boar. I find this to be a little underpowered, so I have decided to upgrade to an 80lb.

My question is: I am running two 130amphr batteries at the moment and get a couple of days out of these, what sort of endurance could I expect to get when running a 80lb out of these batteries joined to create 24v?

Cheers,

Murray

[sammy]

My mate had a 80lb motor guide and he ran it off two 120amp batteries so you should be fine

[sammy]

Sorry did read it probably I thought you were ask would they power it hah

[Muz11]

Hi Sammy,

Do you know or can you ask him what sort of duration he would get from them?

Cheers,

Murray

[special_k]

There is a formula you can use but I can't for the life of me remember it.

Something to do with working out the draw on the motor. The faster speed you have the leccy set on will draw more current so x amps * 24volt system / 130amp battery?

^^ I just made that up, and is most likely wrong so someone feel free to correct it.

[Muz11]

Originally Posted by special_k

There is a formula you can use but I can't for the life of me remember it.

Something to do with working out the draw on the motor. The faster speed you have the leccy set on will draw more current so x amps * 24volt system / 130amp battery?

^^ I just made that up, and is most likely wrong so someone feel free to correct it.

Hey mate did you end up finding the formula?

[ruski]

It will all depend on conditions and speed settings... if you're fishing strong currents then it will not last as long as your 55lb imo.

If you're fishing areas with no tidal influence like dams etc.. it should last you for days.

I know last Christmas I was out in the bush for a number of days without charging the leccy batteries and 2x 120amphr batteries, 80lb fortrex minn kota, kept going for 3-5 days. But that was mainly fishing for bass in a dam (so speeds were kept around 4-5/10).

Hope that helps.

[Alex]

Just to give you an idea:

The 120A/h 12V batteries connected in series will give you a 24V, 120A/h battery bank.

A 120A/h capacity means that the battery bank can be (theoretically) discharged with the current of 120A in one hour, or with the current of 12A in 10 hours.

If, for the argument's sake, your electric draws 5A at a setting of 95%, then it will (again, theoretically) last you at this setting for 24 hours.

But if it uses only 2A at setting 50%, it may last you for 60 hours.

But to know this time of discharge, you need to know what would be the maximum current draw of your electric motor (manufacturer's data) and then work out the time it will last.

As ruski said before there will be some variables:
current/tide in the waterway you are fishing, the condition of the batteries (new/old, clean connections), whether they are fully charged, whether you are trolling all day or use electric intermittently will also determine the time the battery would last.

Bear in mind that you don't want to discharge the battery completely to keep them "healthy", however the deep cycle ones are better in that regard than cranking batteries.

Cheers,

[eddystone]

I have a 80 terrova and always charge it after a days fishing....

I might be able to squeeze two days out of it, but I don't take the risk...

As other have said it will depend on conditions.

I have a 101 pound maxum that I'd swap for a 55 if you happen to be interested...

Pat

[Muz11]

Thanks for all of the replies.

I guess the question is can anyone tell
Me how much amps a 80lb would pull at full throttle and at half?