Mike Allred
1 mW
- Joined
- Dec 3, 2014
- Messages
- 16
Like everyone, I'm trying to get the most RANGE out of my battery pack which consists of (so far) 91 Samsung 29E batteries in a 13S, 7P configuration (at 45 kph - 28mph). Yesterday I was running a smaller 13S Panasonic test pack at the low end of its charge capacity and producing only 42V. It gave me a speed of 40kph (25mph) which is acceptable given my target of 45kph. Fully charged it gives about 52 kph but the speed limit on the controller should be set to 45kph in Switzerland. As I was flat out at 40kph (all numbers are without pedalling) I started to think that I may be wasting amps because 42V won't get me above 40kph anyway. I also thought that when fully charged, the 52V may also be wasted because I'm limited to 45kph anyway.
So I wondered if someone could help me with answers on the following questions. By the way, I'm running a MAC 10T, the test controller was an EB312 and I also have an Infineon 3077 12fet controller.
1) Are the extra volts over and above the 47V (needed to get to the 45kph limit) simply wasted ?
2) Do the (above) extra volts somehow reduce the amps needed to maintain 45 kph ?
3) Am I potentially wasting amps if I'm struggling along at 40kph, 42V and electric throttle wide open ?
4) If I were to improve my battery pack to improve range, what should I do ? Go to 14S or 8P
5) The 29E batteries are great value but I'm a little concerned about the conséquences of exceeding the recommended continuous 1C output. I will never exceed 2C but the continuous drain will be above 1C and maybe in excess of 1.5C. Any advise - apart from changing out the 29E batteries ?
6) Is the the lack of a stable volt plateau on the 29E battery somehow wasting its own ulitimate capacity by initially supplying too much V and not enough V at the end ?
I'm sure there are some very intelligent well informed people out there that can help me.
Mike
So I wondered if someone could help me with answers on the following questions. By the way, I'm running a MAC 10T, the test controller was an EB312 and I also have an Infineon 3077 12fet controller.
1) Are the extra volts over and above the 47V (needed to get to the 45kph limit) simply wasted ?
2) Do the (above) extra volts somehow reduce the amps needed to maintain 45 kph ?
3) Am I potentially wasting amps if I'm struggling along at 40kph, 42V and electric throttle wide open ?
4) If I were to improve my battery pack to improve range, what should I do ? Go to 14S or 8P
5) The 29E batteries are great value but I'm a little concerned about the conséquences of exceeding the recommended continuous 1C output. I will never exceed 2C but the continuous drain will be above 1C and maybe in excess of 1.5C. Any advise - apart from changing out the 29E batteries ?
6) Is the the lack of a stable volt plateau on the 29E battery somehow wasting its own ulitimate capacity by initially supplying too much V and not enough V at the end ?
I'm sure there are some very intelligent well informed people out there that can help me.
Mike