I run two batteries. One is a Group 24 AGM cranking battery for the motor. The other is the 100Ah LiFePO4 for the TM and all of the electronics/electricals (fish finders, bilge pump, and rarely used nav lights).Thanks guys, I was hoping a 50 would handle it. I ordered two 50’s, one for electronics and other for tm. Just talked to owner of store and he has 100’s in stock so sounds like I should just do that.
So I have a 1652 G3, I currently have a Minnkota Edge 55 on it. I’m trying to figure out what size lithium battery to get. Minnkota site say 50 amps per hour and will only give for full speed. That just seems way out there. So what are you guys using for trolling motor batts on tin boats. Typically fish 6 to 8 hours then charge them.
Good information, thanks! So what model tm start with digital and are you suggesting that digital models use less battery?The MK Edge doesn’t have a digital speed control so it uses more current than necessary at any speed slower than 100%. Basically, a resistor is used to dump current which in turn reduces the voltage at the motor. So the slower you go the more power is converted to heat through this resistor. A digital speed control (ESP) basically chops the DC current. When running the motor slower the current pulses are just farther apart. In other words slower speed actually means lower current consumption too.
Why am I telling you this? It explains why the MK specs only state the full power consumption.
If you upgrade the trolling motor to a “digital” model you may not need a 100 Amp/hr battery.
Without a doubt. Depending on how you use it you could 4X longer runtimes.Good information, thanks! So what model tm start with digital and are you suggesting that digital models use less battery?
I would think they get the money from having content that is liked and subscribed to.Makes me wonder where they get the money to buy all these expensive batteries and then just tear them apart ?? Buying a half dozen batteries to tear apart and compare?? Someone has an agenda to spend that type of money!!
I would say that the agenda is the monetization of their YouTube channels based on expertise they've developed and are good at packaging up. Only a relative handful of creators make anything from it, and many of those are actively moving to other streams like Patreon because YouTube is squeezing their income streams.Makes me wonder where they get the money to buy all these expensive batteries and then just tear them apart ?? Buying a half dozen batteries to tear apart and compare?? Someone has an agenda to spend that type of money!!
I also did the same 100 AH lifepo4 for my 55# terrova. I was out from 5 am til 5 pm the other day and there was still life in my battery running fish finders trolling motors occasional stereo. They are so light you could always get a second if it’s not enough lolI have a Minn Kota Powerdrive 55#. I use a 100Ah LiFePO4 to run it.
I've seen a recommendation recently on one of the web sites that suggests a battery with capacity twice the maximum amperage draw. That would mean 110Ah for my motor. I'm confident the 100Ah battery is enough.
Keep in mind that a 50 Amp/Hr lithium battery has roughly the same usable capacity as an 80 Amp/Hr AGM lead acid deep cycle. My larger boat has two 110 Amp/Hr AGM’s in series. When they fail the replacements will be two 100 Amp/Hr lithiums. The boat will loose about 140 pounds and the trolling time should increase roughly 50%.Good Thread! I have a couple rigs running 12v Minn Kota Powerdrive or Rip Tide Powerdrive as well as a Terrova all with iPilot on Micro skiffs or a 14.5’ starcraft. I find the 50ah Lifepo4 batteries work better than the 24 or 27 series deep cycle lead batteries for longer duration having full power. I have been really happy with these batteries. One is a combination starter -deep cycle to start my Suzuki 20hp the other is 50ah deep cycle only used just to power TM and a Garmin Chartplotter- haven’t run one dry in a full day on a river or lake. Boats are small and light and I would consider the 100ah if I was fishing where I couldn’t charge overnight between fishing days.
