Recent content by csjones10d

hi I ran the battery down till all the cells reached 3.2 and the one that was bad was down to 1.6 have tried to bring it back up but wont hold a charge goes up to 3.6 then falls fast to 2.6 so have removed it from the back and now charging the battery again will let you know if this has sorted...

hi I have found a bad cell hope this is what is the problem will let you know

the battery is 2 years old and in good condition was working ok up to last month then started to go wrong is balanced every time and the controller is the same age as the battery.

thanks for your advice, when it comes to my controller how can I test it and how do you add more shunt resistors or am I best just getting another controller

Hi please could some one on here help with the issues I am having with my set up, I will try to explain the best I can the trouble I am having. When I start off from a standstill if and use to mutch throttle my bms shuts down when I disconnect the power and plug it back in it will work again if...

cant use the 72v-60a controller with the 48v battery as the controller has a cut out limiter at 52 v so it wont work if I want to use the controller the only thing I can do then is ad another 24v -20a battery to the one I have now that would be the cheapest way to go and buy another battery say...

Re: more power for climbing hills Postby diff_lock » Mon Feb 22, 2016 11:39 am Why do you have a massive hub motor and a tiny 25A controller did not know at the time what I was buying new to this e bike world

does a 72v battery at 20ah = 1440 wats and a 48v battery at 30 a = 1440 wats give you the same power out put ie speed and power to go up hills ect I thought it was like the following 72v - 20 a = 1440 w more speed 48v- 30 a = 1400w not as much speed as above but more distance in travel wich...

thanks for your replys I am going to give you as much info as I can as I don't know that much about battery tech so please go easy, I will list every thing I now use at this time controller crystalyte 48v 25 ah motor crystalyte 4080 3000w max battery sun thing 48 v 20 ah lifepo4...

just found the gradient of the hill its on a sign at the top of the hill its 16% decline

hi more info I am running a crystallite 4080 motor and a crystallite 48 v 25 ah controller I will give you some speed conparisons when iv found the gradient of the hill I am having trouble with

Hi I have a lifepo4 48 v 20 ah battery that I am more than happy with when it comes to speed I can get from it but I am having real trouble with some of the steep hilly roads I use, what I would like to know is would a biger battery help say a 72v 20ah or would it just give me more speed. What...

HI I have striped down the lithium battery down to individual cells as the battery was no good as it was so I could see exactly what the problem was, and now its striped it is clear to see what was wrong, bellow is a list of readings from the cells and I could do with some advice as to which...

thanks for your replies I will try some of the things you have suggested and get back with the results fingers crossed I can get to the bottem of this issue

more tech info if it helps the lifepo4 battery is made up of 123 cells at 20 ah each still has bms attached the lithium was 7 rows of 7 now its 6 rows of 7 and total ah I was tolled was 20 ah bms removed