I found some other manufacturers of LiFePO4 batteries, in China as usual.
Does anyone have experience with them?
One is Optimum Battery, see http://www.optimumchina.com/en/Products_li.html
and the other one Ponilion, see http://www.ponilion.com/Products/LiFePo4_Prismatical.htm .
Cells from the latter I also found on one web site in the Netherlands, which is a little more practical for ordering.
It seems pretty hard to get this kind of batteries, other than ordering a 1000 directly from a Chinese factory.
Bram
.. and then I found Heter http://www.heter.biz/en/Products_show.asp?areaid=178&id=457&flag=0
which surprisingly has almost the same specifications as Ponilion.
Is there some standardisation, or are they related?
Still curious,
Bram
Hi All !
I am french distributor of lifepo4 batteries.
Beware of this "non existing" company !!!
I first test one lifepo4 battery pack that was very good and 26650 cells that was great too.
I've bought several e-bike packs following to the good test (last summer 2008). (36V10Ah to 48V20Ah)
From this time I only have problems with a lot of bad packs.
Some are good and I don't have any news from clients and some give me many troubles !!!
Either few cells dead after 2/3 cycles (sometimes cannot be used one time !!!), or BMS fail.
I succeeded to get some replacement packs MONTHES and replacement packs was dead too !
I had claim to be refound for one bad pack with high rate 26650 cells, but on the 50 cells I've got, half had burnt in the parcel (???), and the good cells was only low discharge cells (fraud on the goods).
I think this guy doesn't reprensent any "big" company but only buy second hands material and try to make business and try to mislaed clients over the world...
No replies to my complains, no solutions, no refound....
He only can say "I told my engineers", "sorry", etc...
"welcome,other problems ,i am still pushing
Battery,(L)Jack_Huang_非常活跃！ Maximus engineers must confirm that situation and need more docs and signatures ,so it is trouble for me to push whole process,i hope sometimes you can understand me and support me ,"
etc, etc....and can cut and past full MSN conversations with this kind of talking....
If you want to have problems, buy to him !!!
Cheers
Maximus
www.maximus-racing.com