24 volt trolling motor ?

[remington 300]

i recently upgraded my trolling motor to a 24 volt system, and seeings how i had purchased a new battery last fall, (for the old 12 volt motor) i figured i only would need to get i more new battery, my question is today i bought another battery, what i thought was the same as the first, but it turns out last years battery was a 27 series 845mca w/675 cca, the new one is a 29 series with the same 845 mca and 675cca, is this going to be a problem?

i was just trying to save a little money, not buying two new batteries.

thanks for looking, and any responces,

mike.

[Esox_Magnum]

Dedicated trolling batteries should be full deep cycles not dual poupose. I run 29's with 210 min reserves.

[remington 300]

there both deep cycle/interstate batteries just 27 vs. 29 series exact same

mca's and cca"s. also the older one is from the fall of 2008 not 2009 ,but this spring

when i put it on the charger it was still at 95% charge after 5 months in the garage, so i tried to just buy one new battery, im just worried the (smaller)27 series, battery might shorten overall run time. anything to worry about?

[jeffreyd]

as long as they are deep cycle you should be ok. the only difference is the case size. the 27 vs 29 is a tad smaller or more square than the other. as long as the cca and rc is the same you should be ok. one thing to remember is that if you start loosing charge faster on the older battery, have them both tested as when one becomes weaker, the charger will work to get and keep the weaker battery charged and cheat the other battery. Good luck

[BobT]

CCA is of no consequence if your intended use if for electric trolling motors. As Essox has already mentioned, your best battery choice for driving your trolling motor is a deep cycle battery. Reserve capacity is your biggest concern in terms of power supply. I wouldn't even consider a dual-purpose or starting battery for this application.

[delcecchi]

there both deep cycle/interstate batteries just 27 vs. 29 series exact same

mca's and cca"s. also the older one is from the fall of 2008 not 2009 ,but this spring

when i put it on the charger it was still at 95% charge after 5 months in the garage, so i tried to just buy one new battery, im just worried the (smaller)27 series, battery might shorten overall run time. anything to worry about?

The run time will be determined by the amp hours or reserve capacity of whichever battery is smaller.

[PierBridge]

Yes you'll be fine!

Interstate good choice !

[chasineyes]

How to you hook up the system with 24V?? And if I have it right, should it read 24V on the voltmeter or will it just read 12.8?

[delcecchi]

you hook the batteries in series, - + - + like you put batteries in a flashlight. You get 24 volts across the pair of batteries to the trolling motor.

To recharge you need a two bank charger, one for each battery.

[Esox_Magnum]

Make sure your wires from the batteries to motor are heavy enough to, I think 6ga is recommended on a 24V

[BobT]

Wire size is determined by the current draw of the load(s) applied, not the voltage. When it comes to motor current, the current for a 24v motor will be half what it is for a 12v motor of the same HP rating.

[Esox_Magnum]

True Bob but a 24V will melt 10ga wires. Been there done that after upgrading from a 12 to a 24.

[remington 300]

esox, i had to upgrade the wiring, i too had 10 gage wire from my previous motor,12volt, i installed 6 gage bonded, tin coated marine wiring,like $3.29 a foot, along with the recommended 60 amp breaker, and to bob also its recommended to use 6 gage wire for the length i had from batteries to the actual plug for the motor, that gage wire helps disipate any heat generated from the 24 volt motors draw while on a high/fast setting for extended periods, better safe the on fire,

and one more thing for you esox, what brand battery do you use with that much reserve in 'em, 210 is alot. i noticed on a thread down a few that a guy was looking to upgrade/replace his batteries and the discusion lead me to believe that interstate batteries arnt true deep cycle batteries,at least the ones that say deep cycle, i know they sell both deep cycle and starting,

the two i have say deep cycle.

on a side note the motor these batteries are for is the new terrova i-pilot

all i can say is i love it so far, yesterday was the virgin voyage, its everything i imagined and then some, looking forward to test running it some more.

thanks for the replys fellas,

good luck on the water,

mike

[Esox_Magnum]

I run Interstates, only brand that hasn't left me stranded. Think I have 31's in there now, might be 29's not sure been awhile since I replaced them or even looked at them.

[remington 300]

the biggest gander had were the 29s this year, at 119.00 apiece so thats what stated this thread, i tried/am trying to utilize the 27 series i had previously, we'll see how it goes, yesterday saw 6 1/2 hours of use with no

loss of battery although it was very calm.

[remington 300]

to get it 24 volt you connect the red lead off of motor to battery #1s positive terminal,the black lead off of motor to negative terminal of baterry #2, and a jumper goes from the negative terminal of #1 to the positve terminal of battery #2, and yes a two bank charger will work, with no regard for the jumper cable, just bank #1 red/red black/black,same for #2 bank

[Esox_Magnum]

If they are working for you use them untill they die them upgrade. I have to order mine when I need them.