Recent content by thatguitarguy

I hooked everything up with the WattsUp on the battery first, and the spark doesn't seem as aggressive. I hope that's the case, but I'd still like to know how to wire in the resistors to control the spark, and if this affects performance in any way.

So if I want to use a pre-charge resistor how would I hook it up? What value? Is this something that could be permanently installed, or would it just be used to pre-charge the capacitors in the controller, and then quickly hook up the battery before they leak down? I guess a way around this...

My battery cost more than everything else on my bike, so I want to take good care of it. It's a ping 36V 20AH, and so far the lowest it's been after a ride was 39V, so I don't think I'm abusing it. I always pedal when I ride and just depend on the motor for hills, and to keep my speed up just a...

Does the BMS only control the charging cycle? I thought that it protected the battery from being drained too far or too fast. Thanks for your patience with this nooby.

I'm thinking that I'd like to set up the WattsUp to stay with the battery. I want to keep my power wires as short as possible, but still be able to keep an eye on how my battery is doing. I can buy a cheap DVM at Harborfreight for $2.99, and I can run smaller parallel leads to a place where I...

Thanks Nick. I recently got a WattsUp that I haven't hooked up yet, partly because of my concern about the spark damaging something. When I hook it up inline should I hook it up to the battery before hooking up to the controller, or should I hook it up to the controller and just leave it there...

Is this why there is a big spark when I hook up my battery? I'm pretty new to e-biking and only have basic electronics under my belt. I've been concerned about the spark that is discharged when I connect my battery. It's pretty big and I'm concerned that it will eventually cause some damage...

Have you started on this yet? I'm hoping to do something similar. I have a Greenspeed GTO that I definitely don't want to molest, but I do want to build an Xtracycle type extension that would run my 26" hubmotor. I have an old Sterling MTB donor that has the old-school raised chainstay hardtail...

Well, I found a good deal on a used Watts-Up meter, and though it's not in my budget, I splurged. I certainly can't afford to buy a new battery pack, and this one has been sitting waiting for it's chance to shine. What do I need to know about wiring up the meter? Is there a shunt that I need...

I didn't take a before pic, but it didn't look that much different. I already had the panniers on, and the brains and power are in the panniers while the panniers hide the hubmotor. If a recumbent can be stealth than this is stealth. People notice that it's a recumbent long before they notice...

I just installed an ampedbikes hub motor on my bike, and the throttle has a 3 LED meter that is supposed to gauge battery level, but so far, as long as the power is on, all 3 lights are lit. The way it's supposed to work is that the green shows full charge, the yellow means the battery is...