THE cells ALL come from China.


Ionic are from China totally assembled etc, You can buy from china if you want yourself and dictate the color of the case you want, min order is 100 units. Call them the TFF Lithium!!

Correct. All these brands you are seeing are mass produced in China and shipped her with some resellers name slapped on them. Go ahead and buy American made. Probably superior products, but closer to triple the price for the same batteries.

So if you buy one of the cheap lithiums without a Bluetooth app to show battery life, how do you keep it charged? Do you just leave it plugged in all the time like you would an AGM?

your charger indicates when they are fully charged, no app needed whatsoever.

I charge my 12 volt with a dual pro 30 amp charger when its full it give power to my stealth charge on the run and that charges the 36.

New 4 stroke merc have amazing charging system, 1o minutes at a high idle added 8 percent to my 125ah start battery.

I'm not aware of any American manufactured Lithium technology marine battery. Corporate representatives of one of the suppliers admitted this to me. While none are made here, what you can get from elsewhere does vary in quality (by way of technical specifications and quality oversight by the label brand seller).

Supposedly battle born are assembled here and meet some kind of quality rating. Over my head, so cheap is what I’ll buy.

May be assembled here but all components come from China and they have a poor customer service reputation

I’m really thinking about buying a 36v lithium for my Champion, I don’t have hardly any room in the back with my 3 group 29s. I have never ran my 3 29s down so what Ah would y’all recommend. I’ve seen 40,50,60. I’m leaning towards 60 just to be on the safe side. Order that and get another for cranking later down the road.

Could be, I don’t keep up with that brand. I’m either going with Millertech or Ionic, since they both have a way to tell the charge status.

They determine charge status via interpretation of a digital voltmeter reading feature built into the BMS (Battery Management System). Anyone wishing to check the charge of a battery that doesn't have an app-enabled voltage reading feature can do so with their own voltmeter. I may wire up 3 DPDT momentary switches to a panel mount digital voltage display to get the same thing. A battery supplier usually has a table indicating the voltage level for various charge curve points.

If you happened to be an angler who runs down 3 Group 29 batteries, I would expect that angler would be sorely disappointed with a single-case 36V solution - ANY of them. The scenario in which the most gain is realized is when replacing an equal number of batteries with Lithium technology at a similar Amp-Hour rating. For instance, if you run 3 100AH AGM batteries, and you go with 3 50AH Lithium batteries, you may be fine if you are a casual fisherman, but if you fish hard, expect to run out of juice at about the same point as you had been previously. Where you get the boost is when replacing 3 100AH wet cell batteries with 3 100AH Lithium batteries, for example. The reason for the boost is that the Lithium cells keep delivering power longer (than wet cells) - their discharge curve is delayed but sharp once it is tripped.

Yes, Pros use the single-case 36V battery solution, but I have never seen one who did it with just ONE of those batteries. The guys happiest with Lithium are typically ones that do the replacement in the 1 for 1 upgrade. The 3 battery swap upgrade provides 100AH in a 36V system. That's far superior to a case where you hope that 60 AH @ 36V will be enough. Note that most 100AH Lithiums are in a Group 27 case, smaller than your Group 29, helping with space.

Why do you need charge status, your charger blinks green when they are charged. The app is stupid, I have a ionic start battery due to wanting the 125 ah for good measure but I havent used the app after the first two days I fished 11 hours with no big engine to make sure it could take it, now that I know it can no need to worry about it.

50 ah would be better than your old batteries.

I have never killed my 50ah, if your worried about it get a stealth charge on the run.

My end goal is to take my 2006 model boat and bring it to present day. I am leaning towards the single 36 to clear room to move my PP pumps around and upgrade my 12v starting/electronics battery to a min 31 size or future Lithium so I can rewire boat and get better graphs. As it sits now the electrical system SUCKS horribly.