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Just bought 2 new trolling batteries


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Something to know regarding Lithium ion batteries...

 

  • Damage to lithium-ion batteries can occur when the batteries themselves or the environment around the batteries is below freezing (32°F) during charging. Charging in temperatures below freezing can lead to permanent metallic lithium buildup (i.e., plating) on the anode, increasing the risk for failure.
  • Charging a device or battery without following manufacturer’s instructions may cause damage to rechargeable lithium-ion batteries. For example, some manufacturer-authorized chargers will cycle the power to the battery on and off before it is fully charged to avoid overcharging. Since ultra-fast chargers may not cycle power, do not use them unless the manufacturer’s instructions include them as an option.

Heat released during cell failure can damage nearby cells, releasing more heat in a chain reaction known as a thermal runaway. The high energy density in lithium batteries makes them more susceptible to these reactions. Depending on the battery chemistry, size, design, component types, and amount of energy stored in the lithium cell, lithium cell failures can result in chemical and/or combustion reactions, which can also result in heat releases and/or over-pressurization.

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Sounds like a drug commercial on TV with the possible side effects....

That last sentence under the section about "SELECTING THE CORRECT BATTERIES" is very interesting, kinda'/sorta'.  If you run your MK troller higher than 85% power ( on a real windy day lets say ) for

I'm still nervous about Lithium based batteries in boats.  The initial inception of them was not a positive experience for everyone.  Every boat that comes in here is a ticking time-bomb, I never

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8 hours ago, fishinwrench said:

Something to know regarding Lithium ion batteries...

 

  • Damage to lithium-ion batteries can occur when the batteries themselves or the environment around the batteries is below freezing (32°F) during charging. Charging in temperatures below freezing can lead to permanent metallic lithium buildup (i.e., plating) on the anode, increasing the risk for failure.
  • Charging a device or battery without following manufacturer’s instructions may cause damage to rechargeable lithium-ion batteries. For example, some manufacturer-authorized chargers will cycle the power to the battery on and off before it is fully charged to avoid overcharging. Since ultra-fast chargers may not cycle power, do not use them unless the manufacturer’s instructions include them as an option.

Heat released during cell failure can damage nearby cells, releasing more heat in a chain reaction known as a thermal runaway. The high energy density in lithium batteries makes them more susceptible to these reactions. Depending on the battery chemistry, size, design, component types, and amount of energy stored in the lithium cell, lithium cell failures can result in chemical and/or combustion reactions, which can also result in heat releases and/or over-pressurization.

Sounds like a drug commercial on TV with the possible side effects....

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45 minutes ago, garyw said:

I was referring to this'

FE6A7AA0-7DC2-41B5-882C-93AE9256FA75.png

That last sentence under the section about "SELECTING THE CORRECT BATTERIES" is very interesting, kinda'/sorta'.  If you run your MK troller higher than 85% power ( on a real windy day lets say ) for a prolonged period you can cause damage to the motor ???????????  So, in other words, they are relying on the power-degradation of a lead-acid battery that is used heavily to protect their motors if used at more than 85% of the variable speed ?  That statement indicates their motors cannot handle the higher continuous voltage a Li-ion is able to provide. That's the way it reads.  

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12 hours ago, fishinwrench said:

Something to know regarding Lithium ion batteries...

 

  • Damage to lithium-ion batteries can occur when the batteries themselves or the environment around the batteries is below freezing (32°F) during charging. Charging in temperatures below freezing can lead to permanent metallic lithium buildup (i.e., plating) on the anode, increasing the risk for failure.
  • Charging a device or battery without following manufacturer’s instructions may cause damage to rechargeable lithium-ion batteries. For example, some manufacturer-authorized chargers will cycle the power to the battery on and off before it is fully charged to avoid overcharging. Since ultra-fast chargers may not cycle power, do not use them unless the manufacturer’s instructions include them as an option.

Heat released during cell failure can damage nearby cells, releasing more heat in a chain reaction known as a thermal runaway. The high energy density in lithium batteries makes them more susceptible to these reactions. Depending on the battery chemistry, size, design, component types, and amount of energy stored in the lithium cell, lithium cell failures can result in chemical and/or combustion reactions, which can also result in heat releases and/or over-pressurization.

Information in the link I provided claims the Lithium Iron Phosphate batteries are not subject to the Thermal Runaway that Lithium Ion batteries have become infamous for that resulted in on-board aircraft fires while transporting them.  

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3 hours ago, skeeter said:

So, in other words, they are relying on the power-degradation of a lead-acid battery that is used heavily to protect their motors if used at more than 85% of the variable speed ?  That statement indicates their motors cannot handle the higher continuous voltage a Li-ion is able to provide. That's the way it reads.

Yeah you read it right.  Doesn't add up.    Maintaining higher voltage should PROLONG the life of a trolling motor, not degrade it.   The cause of most all premature TM failure is running it on low voltage....not HIGH voltage.   

Low voltage creates excess heat and bakes the brushes and windings. Maintaining higher voltage SHOULD prolong the life of the brushes and windings.  

Either they are full of BS, or there's a voltage verses amperage issue involved that we aren't talking about/or taking into consideration.

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17 hours ago, fishinwrench said:

Yeah you read it right.  Doesn't add up.    Maintaining higher voltage should PROLONG the life of a trolling motor, not degrade it.   The cause of most all premature TM failure is running it on low voltage....not HIGH voltage.   

Low voltage creates excess heat and bakes the brushes and windings. Maintaining higher voltage SHOULD prolong the life of the brushes and windings.  

Either they are full of BS, or there's a voltage verses amperage issue involved that we aren't talking about/or taking into consideration.

I tried to be diplomatic and not crap on MK for that weird claim so I'm glad someone else saw through their statement that made no sense at all.   

I'm hearing many high-end trollers are going to brushless motors ( that I'm still trying to wrap my feeble brain around how they work ) and I own and use multiple brushless DeWalt power tools and really like their performance.  So I'm now curious what the consequences of using Li-Iron ( not Li-ion ) batteries would be on brushless motors.....according to MK that is. 

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I'm still nervous about Lithium based batteries in boats.  The initial inception of them was not a positive experience for everyone. 

Every boat that comes in here is a ticking time-bomb, I never know what someone before me has done.....and boy-oh-boy have I ever had some dandy's.    Some days I feel lucky to still be alive.  Not exaggerating one bit.  🤞

People don't take this stuff serious enough!   

I guess it takes being out in the middle of a lake during January, in a boat that is on fire.....to pound that point home.   There's a reason why boat mechanics get paid "the big bucks".

This ain't anything like wiring up a stereo in a Vega.  🙄

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I recently(three weeks ago) jumped into the lithium battery boat.  I bought this for my polaris rzr: 

https://www.ebay.com/itm/WPS-Featherweight-Lithium-Battery-HJTX30L-FP-IL-HJTX30L-FP-IL/152493396095?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Initial impressions are good. Has plenty of reserve capacity for the radio.  LiFePo(lithium iron phosphate) batteries are considerably safer than Lithium ion batteries.  There are some great test videos showing overcharge and over discharge torture tests, and the cells used in these can take a 200amp short per cell.  I will be trying this battery out in my riverboat as a starting battery, then probably ponying up for a large one.

 

everything in this post is purely opinion and is said to annoy you.

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Am I missing something?  The description in that ebay link says the battery is "Lithium Ion" not lithium "iron".

Reviews below the item are a little shaky and it doesn't seem to play well in the cold.

"Never underestimate the power of stupid people in large groups."  George Carlin

"The only money ever wasted is money never spent."  Me.

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