New Bike

evest

New Member
Region
Canada
So I got a new bike it's a 72v Emmo Knight Sport. I came with 6 12v 20 AH SLA batteries and they wanted $ 1300 for the upgrade to Lithium 30 AH. So I wanted to build my own battery pack using the K2 26650 3800mAH cells. I am going to be making a pack that will be 24s 8p so it will be 76.8v 30.4 AH
Each cell specs are:
Brand: K2
Model: LFP26650E
Capacity: 3800mah
Nominal Voltage: 3.2
Fully Charged Voltage: 3.65 (recommended), 4.1 (maximum)
Fully Discharged Voltage: 2.5 (recommended), 2.0 (maximum)
Continuous Discharge (A): 12
Pulse 30 Seconds Discharge (A): 28
Charge Current (A): 3.8
So my question is the Continuous Discharge is 12 amp since I'm running 8 in Parallel that would be a Continuous discharge of 96 amps.
The controller is 80 amps am I wrong or am I going to have to change my controller so it will hand the higher discharge amps?
 

Art Deco

Well-Known Member
Region
USA
City
Selinsgrove Pennsylvania
This should be cross-posted in the advanced forum with the DIY and kits where you will be likely to get some help. Way above my pay grade, I'm afraid.
 

evest

New Member
Region
Canada
Thanks I have built smaller packs before but this is by far the largest one. The BMS that I got for the pack is good for 100 amps I just wasn't sure on the controller end of it.