What is the shape of the battery you have?
I have a rear rack, but it's not meant for a 29" bike, *might not* be an issue, or a disc brake bike, which might be an issue. I also have a seat-post-mount rear rack but I'm not sure it'll hold much more than 20lbs.
jasonf150 wrote:Ok, got the battery from amberwolf. Thanks again! I plugged it in and pulled the trigger. The wheel spins. I just need to get to home depot to get the washers and I'll be set.
I also got it mounted. I didn't mount it exactly how you were using it but close. I opted not to use the bag. See images below.
Coupla questions about this battery just so I'm clear.
- Can I leave it on the charger overnight? Or should I just charge it for a few hours when I get home? How do I tell when it's fully charged?
- Is there a particular lcv I should set on my CA so I don't over-discharge it?
Or should I just go by how many amps I've used? Or go by volts the CA is showing the battery is putting out?
- Also, I unplugged the battery from the controller when I charged it tonight. Is that necessary? Does it matter?
jasonf150 wrote: I can't seem to locate the CA manual to change it to mph/miles.
So, when I push the motor, either going up a hill, or when I just give it tons of "gas", it stutters (hesitates, sputters, "misses", whatever you want to call it). So is that normal? Is it because of the battery?
Also how important is the volt reading? The CA says vmin is 24. Is that bad? Aren't I supposed to keep it above a certain point? I assumed that would be a always-current reading of how many volts the battery had in it. So as I rode, it would go down lower and lower, until it reached lvc. That doesn't seem to be the case as that reading was all over the place as I rode different speeds.
jasonf150 wrote:I'm planning on riding under power to work tomorrow (11 miles each way). I'll let the battery sit a couple hours, maybe with a little fan on it, before I charge it for the ride home.
jasonf150 wrote:I think I'm going to mount the batteries to the bottom. 4 rechargeable AA's in 2s2p (I think). 2 of them wired in series making 2.4v. And 2 of those wired in parallel making 4aH (the ones I have are NiMHTenergy Centura 2000maH bought on Amazon, $8 shipped). Tenergy also sells a NiMH rechargeable D battery that's 10aH.
It'd be nice to just have a set of those back there, but I'll start with the AA's to see how it goes. I also have a spare brand new Dewalt drill battery since my drill came with 2. I don't use it enough to need both. I could make 3 separate 6v batteries, then just charge them together. That voltage would be fine for the lights since I can get 6v bulbs but I would need to step it down for the speakers and radio.
jasonf150 wrote:Here are the #'s:
26:44 (total 11 mile trip was about 42 minutes)
avg spd 16.8 mph
74.375 wh used
.0575 regen aH
2.1669 fwd aH (not sure what this is)
That's an extremely good efficiency figure: 9.6Wh/mile.
I'm not certain if you simply didnt' have the motor/CA system turned on for part of the trip, only turning it on when using the motor, or if the motor was used only part of the time that the syste was turned on.
The charger isn't charging anymore. The yellow light and fan come on for a few seconds, then they go off. According to the label on the charger, that means "disconnect". I checked both fuses. Any ideas?
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