flexy
100 W
That controller is supposed to handle 10KW, you are using 6KW max, what air temperature are you using it in?
+30-35 Cflexy said:That controller is supposed to handle 10KW, you are using 6KW max, what air temperature are you using it in?
Nice!yokneamcity said:+30-35 C
This monster controller!flexy said:Nice!yokneamcity said:+30-35 C
I got my 36 fet today, it's quite big compared to Lyen 18fet :lol:
yokneamcity said:This monster controller!
Where you will plase it?
72 km/h according to gps, and proximity 80 km/h according to car speedometer.flexy said:72 km/h! I was hoping to get more at that voltage, it's still a good improvement. What sort of range are you getting?
That's a good idea to use BMS to switch a relay. I was thinking of doing the same with my Evassemble BMS, then I can send regen current straight to the battery too.
I'm still waiting for a new controller so no progress yet
yokneamcity said:I finished work on remaking the battery. Battery had three assemblies of 16 cells in series. That were are connected in parallel.(16S/3P) Prismatic packages A123 20 A/H
I decided to pick up the battery voltage to 78 volts. For this, I middle the assembly parted into two parts, each with 8 cells. And added to the two assemblies are 8 cells. The result was a configuration 24S/2P.
Maximum speed increased to 72 km/h.
And also i ordered BMS 24S/100A rated current from BMS_Battery http://www.bmsbattery.com/bmspcm/378-17s26s-24a-max-discharge-current-bms.html
In this BMS installed low quality mosfets with high-resistance channel. This has caused a strong heating BMS at maximum current (100A)
But I solved the problem.I connected the controller power cable to the battery directly, through a fuse, bypassing BMS. Logic Plus of controller is connected through a relay that is connected to the battery through the BMS.
jonescg said:yokneamcity said:I finished work on remaking the battery. Battery had three assemblies of 16 cells in series. That were are connected in parallel.(16S/3P) Prismatic packages A123 20 A/H
I decided to pick up the battery voltage to 78 volts. For this, I middle the assembly parted into two parts, each with 8 cells. And added to the two assemblies are 8 cells. The result was a configuration 24S/2P.
Maximum speed increased to 72 km/h.
And also i ordered BMS 24S/100A rated current from BMS_Battery http://www.bmsbattery.com/bmspcm/378-17s26s-24a-max-discharge-current-bms.html
In this BMS installed low quality mosfets with high-resistance channel. This has caused a strong heating BMS at maximum current (100A)
But I solved the problem.I connected the controller power cable to the battery directly, through a fuse, bypassing BMS. Logic Plus of controller is connected through a relay that is connected to the battery through the BMS.
I forget, but if you have a Sevcon 4 controller they can be programmed to allow more phase amps. I have a 16s 3p A123 pack in my 110s scooter but without the controller reprogramming it wouldn't get over 65 km/h. I can maintain about 75 km/h on the flat now.
Your cell terminations look rather wimpy. I would be careful of drawing high currents through them. Ideally you would have some decent bits of copper clamping the tabs together.
They're a great scooter once you ditch the heavy metal
dutchlincoln said:Can someone post the dimensions of the battery compartment?
Is it possible to relocate the controller, and use that space for batteries as well?
I'm thinking about purchasing a 110S and put Winston's in them, but trying to figure out how much Ah's would fit in...
Thnx.
flexy said:The original controller in mine wasn't a Sevcon. Did you reprogram yours yourself? if so did you need a special programmer or could you use free software?
flexy said:dutchlincoln said:Can someone post the dimensions of the battery compartment?
Is it possible to relocate the controller, and use that space for batteries as well?
I'm thinking about purchasing a 110S and put Winston's in them, but trying to figure out how much Ah's would fit in...
Thnx.
There isn't much room under the seat due to the MSU and controller being there, I have also had to put my two DC convertors and contacter in there.
There is extra room at the front under the steering column you could fit maybe another 15% in there, but it would need a extra battery box making and fixing to the frame
I have filled mine with A123 ,I think if I did this over again I would put in a smaller pack and gain some storage space, after all not many folks would want to ride a scooter for 100+ miles non stop.
If you are overvolting and going for high speed ,that's a different story :lol:
jonescg said:Dude you're going to get like 150 km range with that!