Turnigy LiFEPO4 packs

[sikeston34m]

Originally Posted by lutach

So was I, there's a MOQ since I go directly to the factories. I've done my research to find most of the factories and I would hate to just give all my info away for free .

I was into this type of "research" for a long time.

Some Companies are good, some are not so good to deal with.

One thing that always kinda got me was, there isn't very many of them that speak (or type) English very well.

Testing samples is always a good idea before placing a large order. Even if they have a so called MOQ (Minimum Order Quantity), they are almost always willing to submit samples to make the sale.

Quality is always a question. It's very lacking with some companies and better with others.

Testing is fairly easy to do in the short term, but it's hard to test longevity.

The Lifepo4 Chemistry in itself, is impressive.

I like the 5ah cells. 10mm thick though? I wonder if a 3S pack would fit the E Revo? That would be pushing it.

[lutach]

Originally Posted by sikeston34m

I was into this type of "research" for a long time.

Some Companies are good, some are not so good to deal with.

One thing that always kinda got me was, there isn't very many of them that speak (or type) English very well.

Testing samples is always a good idea before placing a large order. Even if they have a so called MOQ (Minimum Order Quantity), they are almost always willing to submit samples to make the sale.

Quality is always a question. It's very lacking with some companies and better with others.

Testing is fairly easy to do in the short term, but it's hard to test longevity.

The Lifepo4 Chemistry in itself, is impressive.

I like the 5ah cells. 10mm thick though? I wonder if a 3S pack would fit the E Revo? That would be pushing it.

The research I do is mostly for my clients. It's funny, because a lot of them are in Asia, but they want me to source the parts they need. That's how I find most of the companies I know of. If English is a barrier, I just type something to my client and they translate it for me . I like to test before I order and if things are not right, I just let it go fast. Quality is mainly up to the end customer, but if there's a new material in the works, most of the time it will fail a few times before that matures. I think a 3S can fit the E-Revo, it'll be a little over 30mm thick after the pack is assembled, but the length could be way over 150mm. Keep in mind other capacities can be made, those were just old pictures one of the manufacturers sent me.

Do you think the MA boys are watching now? They're not very active lately.

[sikeston34m]

Of course they are still watching. They just know their role and have chosen to shut their pie-hole. LOL

The 4500mah Turnigy packs that I've been running are very nice. I like them alot.

One thing I've noticed about them, they seem to be improving on capacity the more I cycle them. It almost seems as if there is a break in period.

[lutach]

Originally Posted by sikeston34m

Of course they are still watching. They just know their role and have chosen to shut their pie-hole. LOL

The 4500mah Turnigy packs that I've been running are very nice. I like them alot.

One thing I've noticed about them, they seem to be improving on capacity the more I cycle them. It almost seems as if there is a break in period.

lol. I want to send them packing fast, but there might be a large MA cult and I fear for my life .

I was watching Sponge Bob with my daughter the other day and it was opposite day. So when MA said the Turnigy LiFe packs were reject, were they playing opposite day?

There's usually a coating on the tabs and they need a few cycle to melt that coating away. Not sure if they use it like they do with the lipos, but it might be a possibility. Have you done any 1C discharge to see the capacity of the pack?

[sikeston34m]

I was just going by mah returned, but it's not accurate since I usually charge at 5 amps or above.

I can do a 1C discharge test and report back. Maybe even do that every so often and log the results. Get some trending results in the works.

Little late tonight, perhaps I'll do that tomorrow night.

[lutach]

Originally Posted by sikeston34m

I was just going by mah returned, but it's not accurate since I usually charge at 5 amps or above.

I can do a 1C discharge test and report back. Maybe even do that every so often and log the results. Get some trending results in the works.

Little late tonight, perhaps I'll do that tomorrow night.

How many times have you discharged and charged the pack? At 5C, what is the capacity being put into the pack?

The 1C discharge will basically tell you the real capacity the cell is at, it might be the same as the 5C, but it should be more accurate. Take your time, I'm not in a big rush .

[sikeston34m]

Originally Posted by lutach

How many times have you discharged and charged the pack? At 5C, what is the capacity being put into the pack?

The 1C discharge will basically tell you the real capacity the cell is at, it might be the same as the 5C, but it should be more accurate. Take your time, I'm not in a big rush .

I have around 10 cycles on the packs so far.

At 5C charge rate, I have no idea.

I did do a 1C discharge test (at 4.5 amps), it shows right at 4200mah.

[Maciolus]

Thanks Lutach

[lutach]

Originally Posted by Maciolus

Thanks Lutach

What did I do?

But, you're welcomed .