Recent content by Cambridgebiker

Tried didn't work lame as hell. They even have plugs outside their building and won't let me charge they unplug me and put the building managers card on my windshield. They probably pay $.1 a kwh too so lame there are probably 5k people that work in this office park too. I'll keep trying but it...

Thanks everyone. My plan was to get enough charge to run the 110vac charger to then charge the battery. The battery itself is like 300v so dont really want to connect to that directly. Thanks for the advice about the 50% as advertised if I factor that in plus the loss to convert it to 110vac and...

Hi, I just bought a Prius plug in with a 4.4kw battery that gets me to work perfectly in one charge. The charger takes 1kw to charge the batt charging takes about 3 hours (I guess it isnt a perfect 1kw in my mind after all must be a bit more...) but I don't think it takes much more since it can...

Hi All, Thanks for helping me out with my dead a2b pack before too bad it doesn't work oh well. I am starting to consider a new rear pack and wondering if anyone can outline what is required to get this bike running on 48v? I have the dead pack so basically a connection into the rear port is...

Thanks! So last night I tested on a few batteries that are similar to AA and got the right voltage (1.4). I do see how the voltage increases (at the end it almost got up to 2 or something) but it seems like a couple pads in the middle are dead. I tried to open insulation and test the wires...

Hey so I tried again with my digital multi and got some strange results. One of them was saying 1.1 it was farthest on the end. But a lot of the others were saying 0 or -.3 or #.3 +.6 etc. it literally looks like the batteries were taken down to zero. I put the black multi meter in the b- and...

Hi all so some good and bad news good news is one cell read .8v and maybe one other read close to that, all others zero. Thanks for the b- I never would have known that thanks! At first i put it on b+ and same cell went up to .8. I added pictures to the same dropbox link here showing needle etc...

Ok rode it today and it works again! I noticed oddly I had a really right (as in slightest touch it would brake) front brake. I think the cable must have been tense and it must have somehow been triggering the brake sensor somehow that or It did rain a lot the night before it and wonder if it...

Hi all I tried the black and red wires in the middle with multimeter nothing. Opened the bms pics on this dropbox link. https://www.dropbox.com/sh/bu6415rjjbpi38g/AACpYvPcpH5MIY1Hu8Dqgi0oa?dl=0 Ill try ti post images in forum next post not seeming to work right from iphone6 will try on laptop...

Ok thanks. So tonight I'll try to open up that bms part. I didn't know if that is where I should be measuring or go somewhere else to measure. I'll open that up take some pictures and poke around and try to take some measurements this evening. Here are some pictures of it all hope they come into...

Yes definitely. So checking the connections is one thing I can handle with my level of experience. I have a good mulitmeter anyway you can suggest how to test/verify the burned output mosfets and or the Hall sensor? Will I need to open the hub to get to those? I am not sure how to find the year...

Thanks so what ill do us thougherly check connections. The mosfets is that a new controller? So if connections fail I suspose next route is cracking open hub and replacing controller no? The hall sensor is that the controller too? Thanks!

Hi All, my a2b metro that I just got off someone today just decided to stop working. It rode fine for about 2 weeks but not working now. It doesnt have anywhere close to the same "power" can only do 5mph or so.some strange vibration and noises coming out the wheel although not that loud or sever...

Hi all got it open not that bad at all. Hammer and screw driver on bottom of the "u" in the middle to start then work around. Got it open in about 20 min no heat needed just put on solid ground give it a good wack and work your way around. So now the question is how and where exactly should I...

Hi All, I am going to try the crack open method starting next week I have a wedding to leave for so I will be away for a few days. I agree I think knowing the cell voltages is the way to go. I have press on off nothing lights up happens. Will send pictures next week and an update. Thanks!