fent battery aka fullriver battery 30c-50c 10ah cells

[duffmanaudio]

I just found this site. Typical crappy chinese website. I just wounder are these claims real & is this where lifepo4 cells are going (li-po performance) ?

http://www.fentbattery.com/en/Cylindrical.asp?id=452

Has anyone heard of them & does anyone know of anyone else making hi power cells like this?

 

[swbluto]

I wish cheap chinese lifepo4 sources would catch up with LiPo performance. If LiFePO4 flat-packs existed with a123 performance at, say, twice the price of hobby-city lipo or below, I'd buy it in a heartbeat. Unfortunately, the cheap high power lifepo4 doesn't seem to exist. Where it gets close, it's in a non-compact form factor (Cylindrical cells).

 

[cell_man]

I wish cheap chinese lifepo4 sources would catch up with LiPo performance. If LiFePO4 flat-packs existed with a123 performance at, say, twice the price of hobby-city lipo or below, I'd buy it in a heartbeat. Unfortunately, the cheap high power lifepo4 doesn't seem to exist. Where it gets close, it's in a non-compact form factor (Cylindrical cells).

Really, I've been selling just that except they are not Chinese manufactured for a lot less than twice the price of HC Lipo and you didn't buy anything from me

 

[swbluto]

I wish cheap chinese lifepo4 sources would catch up with LiPo performance. If LiFePO4 flat-packs existed with a123 performance at, say, twice the price of hobby-city lipo or below, I'd buy it in a heartbeat. Unfortunately, the cheap high power lifepo4 doesn't seem to exist. Where it gets close, it's in a non-compact form factor (Cylindrical cells).

Really, I've been selling just that for a lot less than twice the price of HC Lipo and you didn't buy anything from me

As far I know, you RAN OUT. So how could I?

I'll have to admit, I wasn't looking for 15 Ah capacities recently so that would've been problematic. But maybe a need for a larger Ah capacity may develop in the future.

(I was only needing 6.6 Ah, since the high voltage I was planning on would ensure adequate energy capacity.)

 

[cell_man]

I wish cheap chinese lifepo4 sources would catch up with LiPo performance. If LiFePO4 flat-packs existed with a123 performance at, say, twice the price of hobby-city lipo or below, I'd buy it in a heartbeat. Unfortunately, the cheap high power lifepo4 doesn't seem to exist. Where it gets close, it's in a non-compact form factor (Cylindrical cells).

Really, I've been selling just that for a lot less than twice the price of HC Lipo and you didn't buy anything from me

As far I know, you RAN OUT. So how could I?

I'll have to admit, I wasn't looking for 15 Ah capacities recently so that would've been problematic. But maybe a need for a larger Ah capacity may develop in the future.

(I was only needing 6.6 Ah, since the high voltage I was planning on would ensure adequate energy capacity.)

Ok, Peace I was only having a laugh, hence the smile at the end. I just have the last few cells that I'm now selling off. I had some people assuring me they wanted all the remaining cells and was reluctant to push the last few cells when I thought they were sold.

I may well look at sourcing some smaller capacity LiFePO4 cells with reasonably high C rating. I have a possible supplier and they look good on paper, but I want to be sure they ALL meet their specs and are reliable. I agree the 15 and 20Ah pouch cells are a bit big for many, even though most end up with a pack around that size by the time they have finished. This makes them seem more expensive than they are, as well as that, many do not compare like with like and often forget about the other bits required for other battery types which add to the total cost but are often overlooked initially. Maybe taking the RC approach, using small packs that can be combined to make a bigger pack is a good way to go. I can see it offers some advantages, but also offers some disadvantages, what do you think?

 

[swbluto]

Smaller sizes help with flexibility and reducing the "size" on the frame, making it more compact and less problematic. In my case, the battery is split up in two parts, with short tubing hanging off each side. These are situated in series. (I'm running a Y-frame dual suspension, so my mounting is going to be a little unique.)

Larger capacities would also be good to offer for those who need higher ah capacities. This describes, I'd say, ~ 80-90% of the e-biking population so I don't want to seem like I represent most buyers.

 

[fullriver]

Thanks to your comment on fullriver hi power lifepo4 battery, as i know, what you talking about is, 15085135Fe, 3.2V/10Ah, burst 50C(500A), for this lifepo4 cell, it's okay for 30-40c on the basis of testing, and 50c maybe a theory value, it have not start the real testing in fact.

Therefore, our engineer confirm that, we could make sure high power cell, 50c it's no problem for pack.

Regarding to the website, http://www.fentbattery.com, maybe a bit crappy in fact, but we are trying to provide the more information our customers need, especial for battery specification, besides,if you have any suggestion, welcome to contact us, and we would appriciate it. Our email is sales@fentbattery.com. Welcome any comment. Thanks.