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Old 06-24-2013, 08:43 PM   #21
jorluivil
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Originally Posted by driftwood View Post
I also run my FF on Lipo polymer 4 cell batteries. These are 14.8 volts W/battery monitor.





The yellow case is water proof. I made sure the outside connection are also waterproof. Running your FF and bait tank on lithium does have its inherent dangers, but the lipo4 type batteries are much safer.

I think Ful-rac uses the same batteries. The batteries aren't cheap but not having to wonder when you're FF batteries will go dead is priceless.
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Old 06-24-2013, 08:50 PM   #22
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you never EVER want to drain lipo batteries to the bottom. That is a good way to toast you expensive batteries. That is why you install a batt monitor parallel with the circuit.
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Old 06-24-2013, 08:51 PM   #23
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you never EVER want to drain lipo batteries to the bottom. That is a good way to toast you expensive batteries. That is why you install a batt monitor parallel with the circuit.
Or you can always buy the extended warranty
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Old 06-24-2013, 09:14 PM   #24
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The PCM (Protective Circuit Module?) is built right into the waterproof case. It protects the battery from all kinds of malfunctions.

I live in San Gabriel (about 10 miles east of downtown LA).
WOW!!! now that is nice system you got going there Greg. I'm surprised more people are not jumping on the wagon. That is a very nice set up you put together.
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Old 06-24-2013, 09:24 PM   #25
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Greg, do you happen to know what the output is on the charger that comes with the battery? I'm wondering if the one that I have know is to much for it.

Jorge,

That might not work for two reasons. Most lithium rechargeable batteries today charge the individual cells in parallel. I'm guessing that's the same approach Greg's supplier is using, although I could be mistaken. Second is the charge voltage for lifepo4 is a little different than lithium ion and lipo.
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Old 06-24-2013, 09:43 PM   #26
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Yes, what John said. You need a special charger for LifePo4 batteries which are not the same as Lipo batteries or lead acid batteries.
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Old 06-24-2013, 09:50 PM   #27
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Jorge, your charger is for 12v batteries. This thread is for 6v bait tank batteries. If you are asking if my charger for my 12v battery has the same output, I can check for you when I get home.
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Old 06-25-2013, 10:58 AM   #28
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I think I'm interested.. but sorry if this is a dumb question. So my Lowrance FF won't run on this 6V battery? I know my livewell (Johnson 500gph 12v pump) will run on the 6V. Just wondering about the FF. It's the bigger Lowrance Elite 7 HDS.

If it's all good, I'd be interested in 2 batt + 1 charger. I'm in Long Beach area, so I could probably come by to pick up. Thanks Greg..
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Old 06-25-2013, 04:24 PM   #29
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FishNinjaY, my FF needs 12v, most do.
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Old 06-25-2013, 08:48 PM   #30
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All the FFs I have owned were 12v, but would run down to about 10v before shutting off. These batteries are designed for bait tanks. At 6v, a bait pump runs at less than half the rated amps for 12v operation. That means longer run times than for a 12v battery with the same amps. They also lessen the water flow which is important with pumps putting out 350gph or more. You will not have to worry about these batteries running out of juice in a day, or even 2 in most cases. With the 4a charger, your battery will be fully charged in a few hours. Granted, I go out more than most, but I have a table full of 6v lead acid batteries that do not work any more.
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Old 06-25-2013, 10:09 PM   #31
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Pretty awesome of you to be doing this. How much does one of those weigh?
Count me in for 2 batteries and a charger

Thi
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Old 06-26-2013, 06:30 AM   #32
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Hey Greg,
If they are making a custom battery for you maybe you could ask them if they could make a larger capacity 12v with a six volt tap ? maybe you could avoid the second battery altogether? I use a dc-dc convertor which is not bad but I do lose some power from the convertor. Just thinking .
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Old 06-26-2013, 05:37 PM   #33
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The weight of the batteries is TBD because they are going to be custom built. My 12v 12a batteries weigh 3.65lbs, so I am guessing about 2.5 for the 6 volts.

The point of these batteries is to provide a lot of power, not to consolidate. Combining them would require a battery size that I would not want to deal with. My 12v 12a batteries are as big as I would want on a kayak.
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Old 06-26-2013, 07:09 PM   #34
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Greg! Don't know where your count is but I'm good for a battery and a charger. Let me know. Thanks! Jim
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Old 06-26-2013, 07:34 PM   #35
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Everybody that has spoken is accounted for. I only have 5 of each (batteries and chargers) unspoken for.
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Old 06-26-2013, 09:21 PM   #36
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Greg,
If you do this again with a 12V battery setup count me in! I am still debating on the 6V if you have any left by the time I make up my mind...LOL

You really do rock sir both for your videos which I am addicted to, and this project. Thank you kind sir!

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Old 06-27-2013, 08:45 AM   #37
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Here you go jaws. Make sure the dimensions will work for you. Comes with charger.

http://www.ebay.com/itm/12V-12Ah-Lit...item2a2ca2b70d
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Old 06-28-2013, 10:26 AM   #38
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Originally Posted by Raskal311 View Post
no 12v option?
Kev, jaws197, Honcho,
I'm talking to that same company about the 12V12Ah LiFePO4 battery.
If we order a few, there's a small discount. You interested? I'll post up
separate from GregA's post here, to avoid cluttering his group buy.
Txt me if you are in?

Kev, I think that *free* 12V battery you gave me crapped out too
early, on my trip.. so I had very spotty fishfinder function. I need to
get batteries for my multitester to check it, but I probably need to
get something newer and more reliable for my FF and livewell tank.
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Old 06-28-2013, 10:43 AM   #39
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Really? Is the one you got for your friend holding up? I have a few that I use and they have all out lasted my 8-9 hour days; maybe its because my FF is smaller. If you want to try another lmk, I have a few more I can spare. I’m abandoning my plans to install a trolling motor so I don’t think I’m going to invest in lighter batteries at this time unless the price is too good to pass up. Text me when you have a price.
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Old 06-28-2013, 11:02 AM   #40
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Greg,
If you do this again with a 12V battery setup count me in! I am still debating on the 6V if you have any left by the time I make up my mind...LOL

You really do rock sir both for your videos which I am addicted to, and this project. Thank you kind sir!

Buy the two batteries and put them in series for 12v.
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