New to this and trying to find a 36v 12 to 15Ah set up that I can recharge in about an hour is exhausting. When I think I've read everything I find a pile of new information. Li-ion seems to be great except it can't be charged at even 1/2C. LiFe packs from china have a discharge rate of about 1C and suggested charge rate of 1/2C. A123 packs/cells seem to be THE ones to get but at $8/cell and only 2300mah they are way out of reach (wanting some capacity). Can I buy a premade 36v 12-15Ah pack with at least 2C continuous discharge and 1C charge? I'd also consider three 12v 12-15Ah packs.
I found this but don't know if Tenergy makes good cells or not. About $1.50/cell for 5500mah cells. Still charge rate is low.
http://www.ebay.com/itm/NEW-Box-of-80-Tenergy-LiFePO4-32650-3-2V-5500mAh-Rechargeable-Batteries-5-5Ah/351864363778?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D38530%26meid%3De347f998d61c430bb6ea9dc382c001d4%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D162276059832
THese K2 cells are 3200mah and $4 each. Suggesting 1c discharge and 1/2c charge but show discharge graphs at 10A that look great (holding 3v) and 20A. Is this a better cell than Tenergy? Is there something better that's not more expensive?
http://www.ebay.com/itm/10-NEW-K2-Energy-LFP26650EV-LiFePO4-26650-Rechargeable-3200mah-Batteries-3-2V/162097662789?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D38530%26meid%3Df18970523ee446238fc7844cfe142068%26pid%3D100009%26rk%3D1%26rkt%3D2%26sd%3D112054111457
http://www.houseofbatteries.com/documents/LFP26650EV.pdf
I'm assuming I can get a 12s BMS that allows 10A charging and can find a 10A charger somewhere.
I've also found these 12v 10Ah batteries at $94 each that will do 20A continuous and charge at 1C though 0.8c was recommended when I called them. 3 in series is ok too.
http://www.dakotalithiumbattery.com/12-v-10-ah-lithium-battery
Suggestions from anyone who has been there done that would be great.
thanks
Carl
I found this but don't know if Tenergy makes good cells or not. About $1.50/cell for 5500mah cells. Still charge rate is low.
http://www.ebay.com/itm/NEW-Box-of-80-Tenergy-LiFePO4-32650-3-2V-5500mAh-Rechargeable-Batteries-5-5Ah/351864363778?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D38530%26meid%3De347f998d61c430bb6ea9dc382c001d4%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D162276059832
THese K2 cells are 3200mah and $4 each. Suggesting 1c discharge and 1/2c charge but show discharge graphs at 10A that look great (holding 3v) and 20A. Is this a better cell than Tenergy? Is there something better that's not more expensive?
http://www.ebay.com/itm/10-NEW-K2-Energy-LFP26650EV-LiFePO4-26650-Rechargeable-3200mah-Batteries-3-2V/162097662789?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D38530%26meid%3Df18970523ee446238fc7844cfe142068%26pid%3D100009%26rk%3D1%26rkt%3D2%26sd%3D112054111457
http://www.houseofbatteries.com/documents/LFP26650EV.pdf
I'm assuming I can get a 12s BMS that allows 10A charging and can find a 10A charger somewhere.
I've also found these 12v 10Ah batteries at $94 each that will do 20A continuous and charge at 1C though 0.8c was recommended when I called them. 3 in series is ok too.
http://www.dakotalithiumbattery.com/12-v-10-ah-lithium-battery
Suggestions from anyone who has been there done that would be great.
thanks
Carl
