Cheap LFP batteries list. Now with more guts!

[Rednecktek]

So since I'm building myself a more portable unit, I came across this:

Evasive 12v 100Ah LFP battery - $169

Sure, it doesn't have bluetooth or low temp protection, but looking at Docan it's $240 for just that many cells, so I'll be robbing these for the guts. It's still a good deal though!

Update: Just tore the lid off, looks... odd. See below.

 

[sunshine_eggo]

Love the name... They probably named the company based on their support policy...

 

[Rednecktek]

I asked what kind of cells they used...
I asked what brand of BMS they used...
I asked what size wires are connected...

They were a bit evasive.

 

[timselectric]

On the bright side. You can be the very first person to give it a rating.

 

[Rednecktek]

Today's victim: Evasive 100ah battery for cheap!





The murder weapon:



The guts: looks weird... waitaminute... is that a balancer??



Nope, I think that's the actual "BMS" in there! No idea how that's supposed to protect anything!



Pouch cells, that explains some. Still going to put in a proper Daly BMS though. Plus sude, all screws, no solder which makes it good!



My capacity tester seems to have been left at the camp somehow, so I'll have to guesstimate when I get it refit.

Refit later!

 

[sunshine_eggo]

I think you are right... that's a balancer, not a BMS.

 

[FLD]

I looked online and Daly says this is a 5A balancer. On their website they show a rendering of four lifepo4 cells with a Daly bms and this balancer. Hmmmm.
I ordered a Kepworth 300ah lifepo4 battery from Amazon. After seeing this I'm seriously considering opening it up to see what, if anything, is in there. It's supposed to arrive Feb 6-7.
Hopefully it's what it's advertised as being.

 

[Rednecktek]

I think you are right... that's a balancer, not a BMS.

If that's the case, then there's no BMS in here it looks like.

 

[sunshine_eggo]

If that's the case, then there's no BMS in here it looks like.

Yep! It appears the main wires are direct connected to the cells, no?

 

[12vDC]

BMS are overrated…

So wait, then they are severely understating the max discharge current

 

[timselectric]

Corners, had to be cut.
To be competitive. lol

 

[Partimewages]

Isn't that the new portable welder?

 

[Skypower]

BMS are overrated…

So wait, then they are severely understating the max discharge current

No, no the current is limited by the one time use pouch terminal fuse factor

 

[AntronX]

I left 1 star review. Lets see if amazon publishes it.

 

[Rednecktek]

Does @Will Prowse know pouch cells are SSSOOO SAFE they don't need no stupid BMS?

 

[Rednecktek]

New BMS installed. One thing that always bothered me about Daly are the obnoxiously short leads permanently mounted...



Fortunately it's 4awg wire and nuts & bolts which made mounting the leads much easier.



It's currently taking in 11a and I'm starting on its brother battery.

 

[sunshine_eggo]

so... now it's $169 + ??

 

[timselectric]

Frankenstein
It's alive!!!

 

[Lt.Dan]

Should be a decent little battery for the price now

 

[Rednecktek]

Well, I splurged for the 150a with BT and low temp protection, so another $50 each. Still cheaper than raw cells AND includes an active balancer for free!