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12v 190ah lifepo4 from aliexpress

John Frum

John Frum

Tell me your problems
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Nov 30, 2019
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Has anyone purchased and received 4PCS NEW 3.2V 190Ah ?
Will Prowse recommends them but I have not seen any actual review of them.

Are they brand new grade A cells?
Are the buss bars as advertised?
Are the terminals and screws fit for purpose?

The price is low enough to make me want to check before I take a flying leap.
 
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i ordered some of the 190's but gonna be a while yet before I get them. They have created a shipping label, but no tracking info available yet.
 
I am interested in ordering a set of these. Will the same BMS recommended for the 105AH cells work with these?
 
grizzzman said:
That depends on how many amps you wanna pull from the battery.
Click to expand...
I guess I need to educate myself on what a BMS does. I actually thought it just monitored temps and voltage, but I guess the load actually flow through the BMS? Anyway, off to class. :)
 
I ordered these, but still waiting for delivery.. Also got the BMS with low temp cutoff from BatteryHookup, that Will liked....
 
I've been contemplating these cells. I would have to use a higher current BMS like the Daly with low temp cutoff. However, I might spend a little more for the 8PCS 150AH listing. This would provide additional capacity and the ability to build one working 12V battery in the field should a cell fail.

@Jo.Jo Please let us know how the cells work and the manufacturing date.
 
If you are in a hurry .... negotiate a faster shipping method. They use FedEx, but it seems from China to California they use the slow boat method standard.
 
ggoldfingerd said:
I've been contemplating these cells. I would have to use a higher current BMS like the Daly with low temp cutoff. However, I might spend a little more for the 8PCS 150AH listing. This would provide additional capacity and the ability to build one working 12V battery in the field should a cell fail.

@Jo.Jo Please let us know how the cells work and the manufacturing date.
Click to expand...
Sorry, but my cells are still on the move.

Upon request of a delivery date from the dealer, he told me as promised in 45 days, so at the beginning of february ... :(
 
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My point of view is that 100AH and 200AH cells units is the nominal spec. capacity. Capacity rates lower than nominal are cycled cells and not grade A anymore. This explains the big difference in price versus nominal. Chinese sellers won't tell you in chat communication up front about this. You may have to raise this question for clarification prior ordering. Reduced capacity cells doesn't mean that parts are bad, just used and degrated.
 
Walef said:
My point of view is that 100AH and 200AH cells units is the nominal spec. capacity. Capacity rates lower than nominal are cycled cells and not grade A anymore. This explains the big difference in price versus nominal. Chinese sellers won't tell you in chat communication up front about this. You may have to raise this question for clarification prior ordering. Reduced capacity cells doesn't mean that parts are bad, just used and degrated.
Click to expand...
The Ad states these are New Cells......... Going to be a problem if I get used ones..............
 
I bought these a few months back and they're as advertised. One thing I've noticed though in the pictures people post in the comments is the recent batches are different batteries. The middle circle is oval on mine and older ones, and the newer ones is a proper circle, so clearly different, whether that makes a difference I don't know.
 
Jo.Jo said:
Sorry, but my cells are still on the move.

Upon request of a delivery date from the dealer, he told me as promised in 45 days, so at the beginning of february ... :(
Click to expand...

45 days - HOLY COW -- our 200aH 3.2v cells typically get here in 6-8 days .. Of the three manufacturers we typically use 12 days has been the longest ... so obviously they are waiting to get an entire 40 foot container full before shipping to LA and then packaging and mailing ... I bet your shipping label will be from LA and not China .. if it is from China I be pissed that it took 45 days ... There is no reason for that .. did they tell you that when you placed the order??
 
ghostwriter66 said:
45 days - HOLY COW -- our 200aH 3.2v cells typically get here in 6-8 days .. Of the three manufacturers we typically use 12 days has been the longest ... so obviously they are waiting to get an entire 40 foot container full before shipping to LA and then packaging and mailing ... I bet your shipping label will be from LA and not China .. if it is from China I be pissed that it took 45 days ... There is no reason for that .. did they tell you that when you placed the order??
Click to expand...
I placed my order the 24th of december last year and i`m from switzerland. Since the 8 of january I‘ve received a UPS-label saying me that my goods were in Nuernberg (Germany) aprox. 4 car-hours from me. So, I`m waiting and waiting and... LOL
 
Jo.Jo said:
I placed my order the 24th of december last year and i`m from switzerland. Since the 8 of january I‘ve received a UPS-label saying me that my goods were in Nuernberg (Germany) aprox. 4 car-hours from me. So, I`m waiting and waiting and... LOL
Click to expand...

I have been to both Nuremberg and allot of Switzerland - heck - its a beautiful drive this time of year -- you could just drive and get them ..:)
 
ghostwriter66 said:
I have been to both Nuremberg and allot of Switzerland - heck - its a beautiful drive this time of year -- you could just drive and get them ..:)
Click to expand...

I suspect somehow Jo.Jo would only return with less rubber on his tires.
 
I too am considering buying these cells. One of the disadvantages appears to be the small terminal bolts. I'd like to draw 75a for several minutes from a 4s 190ah 12v battery. I have some questions that might be answered by those of you buying these cells:
  • Are the bolts and buss bars sufficient for this load?
  • What is the max allowable torque on these bolts?
  • Can the bolt holes be safely drilled and tapped for a larger bolt?
I'm looking forward to hearing some real world experience on these cells.
 
tgg said:
I too am considering buying these cells. One of the disadvantages appears to be the small terminal bolts. I'd like to draw 75a for several minutes from a 4s 190ah 12v battery. I have some questions that might be answered by those of you buying these cells:
  • Are the bolts and buss bars sufficient for this load?
  • What is the max allowable torque on these bolts?
  • Can the bolt holes be safely drilled and tapped for a larger bolt?
I'm looking forward to hearing some real world experience on these cells.
Click to expand...

The bolts purely hold the cable to the top of the battery terminal, the size of the bolt is fairly irrelevant. Max torque is low, I pulled out one of the helicoils. I bought a helicoil kit and put the same size back in fairly ok, I then purchased longer grub screws as the ones supplied are too short for all the leads required, then I superglued them all in and can torque them very tight without risk of damage. You could drill and tap the terminals with an m8 easily, it's soft aluminium, but you won't gain much advantage imho.
 
ScoTTyBEEE said:
The bolts purely hold the cable to the top of the battery terminal, the size of the bolt is fairly irrelevant. Max torque is low, I pulled out one of the helicoils. I bought a helicoil kit and put the same size back in fairly ok, I then purchased longer grub screws as the ones supplied are too short for all the leads required, then I superglued them all in and can torque them very tight without risk of damage. You could drill and tap the terminals with an m8 easily, it's soft aluminium, but you won't gain much advantage imho.
Click to expand...

Thanks for the great information, however I'm a little confused. It sounds like all the terminals have a threaded metal insert that you replaced with heilcoils. Do you know the size of the heilcoils? I'm not sure what a "grub screw" is. I see the 4 cells come with what appears to be 8 flat head screws. They do look too short to use with a washer, buss bar, and a BMS wire ring terminal. What did you superglue, the new helicoils or the screws?

I'm planning to use these cells in my travel trailer, so they will get bounced around a lot. I'm a little concerned that it may be difficult to make connections that won't loosen with vibration. Perhaps some Blue Locktite® Threadlocker is in order on the screws. I don't mind doing a little work replacing the metal inserts and new screws if that will really make solid connections (both electrically and mechanically).

I love the connections on the Fortune 100ah cells that Will showed recently, but they cost about twice as much for the same capacity as these 190ah cells and the Fortune cells are much larger.

What does everyone think of using an oxide inhibitor (like electricians use with aluminum wire connections) on top of each aluminum cell terminal?
 
the force on the bolt is indicated on the datasheet (Eve cell) , maxt 8kg. More you risk to break the case.
the size of the screw does not matter but since the surface contact will be better with small screw, you can say the smaller, the better, but make sure the head is large enough and use a copper washer and better, slotted busbar (slotted holes increase surface contact.)
Image result for slotted busbar
you can also polish busbar at surface contact.
the surface contact is a circle about 20mm diameter, that is a lot enough.
since the busbar should be around 1mm2 per Amp, if you want to use 1C, then you need around 200mm2
 
tgg said:
Thanks for the great information, however I'm a little confused. It sounds like all the terminals have a threaded metal insert that you replaced with heilcoils. Do you know the size of the heilcoils? I'm not sure what a "grub screw" is. I see the 4 cells come with what appears to be 8 flat head screws. They do look too short to use with a washer, buss bar, and a BMS wire ring terminal. What did you superglue, the new helicoils or the screws?

I'm planning to use these cells in my travel trailer, so they will get bounced around a lot. I'm a little concerned that it may be difficult to make connections that won't loosen with vibration. Perhaps some Blue Locktite® Threadlocker is in order on the screws. I don't mind doing a little work replacing the metal inserts and new screws if that will really make solid connections (both electrically and mechanically).

I love the connections on the Fortune 100ah cells that Will showed recently, but they cost about twice as much for the same capacity as these 190ah cells and the Fortune cells are much larger.

What does everyone think of using an oxide inhibitor (like electricians use with aluminum wire connections) on top of each aluminum cell terminal?
Click to expand...
The terminals have steel threaded inserts in them, that is a helicoil, I replaced my broken one with the same thing, they’re m6. A grub screw is just the screw shaft so it lets you place a nut over the top, probably just has a different name where you are, blind screw perhaps. I put superglue on the (longer) grub screws and tightened them in, it would glue everything in place. I had to sandpaper the terminals after the glue had dried as the gas created a bit of a film over them, I just used regular loctite super glue, nothing fancy. If you want to ensure the nuts don’t work lose then threadloc or just put 2 nuts on but I think it will be ok, normal batteries don’t have problems working lose.
 
Jo.Jo said:
I placed my order the 24th of december last year and i`m from switzerland. Since the 8 of january I‘ve received a UPS-label saying me that my goods were in Nuernberg (Germany) aprox. 4 car-hours from me. So, I`m waiting and waiting and... LOL
Click to expand...

I think the German customs is the problem. The customs here are in greater parts an analog business and therefore it can take a lot of time to finish the customs declaration.

In 2018 my order from Hong Kong sits about 8 (eight! EIGHT!!) weeks at the customs. It's so crazy ...
 
nosys70 said:
the force on the bolt is indicated on the datasheet (Eve cell) , maxt 8kg.
Click to expand...
I believe the force is given as torque, Newton-meters, not kilograms. >8 Nm, or >5.9 foot-pounds and 70.8 inch-pounds*. You would need a torque wrench to apply this torque accurately. *Note this is for the 280AH Eve cell, reference below.
 

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yes , my bad, 8Nm is 800grms meter, so very small force is needed. this means you should not even need to force with hand.
possible that is what makes these cells so cheap.
That is also why your busbar must be pretty slick and slotted.
don't know if you can add some conductive paste or powder (stain ? micronized copper, silver or aluminium ?) to improve contact.
ideally a thin sheet of gold would be the best.
sheet of gold cost nothing
www.ebay.com

GENUINE REAL PURE 24K 999 GOLD LEAF GILDING SHEET 1.18" ( For Art Work & Spa ) | eBay

GENUINE 24k 999 GOLD LEAF 1 SHEET. KARAT. 24K YELLOW PURE GOLD. Food grade gold leaf. You will receive the item within 1-4 weeks depend on your location.
www.ebay.com
 
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