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    Fuses and thermal fuses

    From looking at em3ev battery packages, cell_man writes: PPTC thermal fuses used on all signal wires. If a fault were to ever occur on any of the small balance wires which run around the battery pack, the fuse simply shuts down the connection and keeps everything safe. Once the fault condition...
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    How to a DIY 18650 battery?

    Hello, I am thinking about adding a kit to my MTB. For the battery, I am considering a small 12s2p battery with 18650 cells. Basically, I need a max of 15A, which is the current of the controller I want (S06S). As a consequence, it would be good to have a current of 7.5A for each cell, a figure...
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    Questions about BMSbattery S06S controller

    Hello, I want to add a kit to my MTB. I want to use that bike both during weekends and weekdays. In weekdays, sometimes the bike may need to be parked in the middle of my city, Barcelona, and many bike burglars abound. I am going to use pinheads and two Us. But the problem is what to do with...
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    BMS for LiPo: yes or no? what is it?

    I have read several threads in this forum regarding BMS for LiPo. I understand most LiFePO batteries have a BMS, unlike LiPos. But I still do not know what it all means. What I think I understand is: 1. With a BMS, one has a single charge point for LiPos, instead of having to connect many...
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    How is this Panasonic battery anchored to the bike?

    I have seen a new (for me at least) Panasonic battery: http://www.greenbikekit.com/index.php/36v-9ah-panasonic-lithium-ion-battery.html Due to the discussion at: http://endless-sphere.com/forums/viewtopic.php?f=14&t=52651 It seems the Panasonic battery seems to make sense to build a bigger...
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    Two bottle batteries in parallel

    It seems the bigger a battery, the higher its max continuous discharge rate is. Bottle batteries such as: http://www.bmsbattery.com/36v/571-bottle-ebike-battery.html are nice since they can fit within a normal frame relatively easily, but they still have a low max continuous discharge rate...
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    Understanding a controller: a particular case

    I have opened a thread regarding PAS, switches, cruise control ... http://endless-sphere.com/forums/viewtopic.php?f=3&t=52613 and even though it seems CA can tune quite nicely diferent configurations, I have the feeling much can be done with non-digital means. For this reason, I have been...
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    PAS, cruises, speed switches and all that

    I have been searching for information in this forum about PAS, control cruise, speed switches and all that, and there is a wealth of information. Too much. And many statements are apparently contradicting among themselves, or look too old and probably not applying now at 100%. For this reason I...
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    Combination of voltage and amperage

    I am looking for to build an e-bike satisfying European legal requirements, but offering decent performance. Basically, there are three motors I know of in Europe that offer 250W "legal": the new Bafang BBS-01 in 36V 250W form, the Q85 / Q100 and I believe there is another Bafang hub 250W...
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    European regulations

    I live in Europe. Here, we have a limit of 250w of power. Also, one could not use the motor unless the biker pedals. However, rules seems to be broken by some brands. For example, the Spanish brand BH offers 350W motors, but "limited to" 250W. I have not been able to find how do they limit the...
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    Splitting a LiFePO4 into two parts

    Hello, I was wondering if one could split a LiFePO4 battery into two parts. I will use Ping as an example, since I have searched for "split battery" and I have found Ping does this. But in principle, I could consider other brands. Let me take a small battery, say a 36V 10Ah: can it be...
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    LiFePO4 batteries with a case

    Hello, I am looking around to build my e-bike. So far, I have been suggested a BPM CST 500W 36V motor is a good one for me. Since it is a 36V motor, I am looking at 36V batteries. One possibility would go with lipos, but LiFePO4 have good characteristics, too. One issue is very few LiFePO4...
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    KU-151: max continuous amperage?

    Does anybody know the max continuous amperage the KU-151 may sustain? Since the KU-151 is to be used with the q11 (a clone of the 9C), which is the max amount of power a q11 can sustain without suffering from reliability problems?
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    Which engines fit the Birdy?

    Even though there is an electric Birdy, it seems to make sense to add a kit to a non-electric Birdy, since the price of the electric Birdy is quite high. http://issuu.com/kooskroon/docs/birdy_katalog_2012?e=4492709/2612960 Do you know which engines would fit the non-electric Birdy? I do not...
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