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Looks like you both got it right. I watched the voltage as I punched the throttle and it briefly drops from 54V to thirty something, and then when the motor cuts out it pops back up to 54V. That's really disappointing for such a new (and expensive) battery.

That makes sense, but the battery is practically new 48V 20AH. I would hope it would last more than the 30 miles or so I've put on it so far. It's from an eBay seller with many hundreds of feedbacks, 100% positive. Now that I think about it, there are three indicator lights on the throttle to...

Any idea what I should look for? This is an AW 26" 48V 1000W front wheel from Amazon mounted on a Schwinn Meridian 3-wheeler. The unit is about a year old. If I advance the throttle VERY VERY slowly it seems to work alright, but if I push the throttle at a normal, but gentle rate it bumps and...

Latest update: I dumped the tiny bicycle mirror for a super wide-angle golf cart mirror. Another advantage of having a permanent canopy on the trike.

Update: I ditched the umbrella and built a canopy from fiberglass rods for the uprights and 1/2" PVC thin-wall pipe for the frame. The fabric is canvass duck and it's held in place by homemade clips cut from 1/2" PVC couplings. I also added a charger port, master battery switch and digital volt...

Thanks! I had a lot of fun building it. Now I'm having a lot of fun riding it.

You know, I didn't really think about frontal area, but you're right! Happily my longest trip is probably going to be about 3 miles one way, and I'm pretty happy going 10 MPH in the bike lane. :) For sport riding I'm thinking about the possibility of getting myself a recumbent trike some day...

That for all the replies. Yes, I'll be very cautious with the battery warmer. It will warm the air in the cargo box, not "heat" the battery directly, and is designed only to keep the inside of the cargo box between 35 and 40 degrees F, so it's a "warmer" and not an aggressive "heater" by any...

This is a 24" Schwinn Meridian trike with a 26" front fork (long story) and a custom cargo box. I was concerned about the weight so I put a beefy 1000W 48V motor on it, and, frankly, that's more than enough juice to pull it around. In fact, since completing it a few days ago I haven't had the...

Hi, I got them off eBay from a vendor called durnergy. For what it's worth, the next time I need batteries I'm going to buy a ready-made battery pack and skip all the hassle of building my own. It was an interesting experience, but I found it stressful and time-consuming.

UPDATE: This design didn't work out very well. The batteries tend to work loose and the connections get more flaky as time goes on. For what I spent on various "money-saving" battery experiments I could have bought a battery spot welder to begin with. Lesson learned. Ordering a spot welder.

I'm building a cargo trike from a Schwinn Meridian. My enclosed cargo box will hold two battery packs, 18 volts each, flat against the left and right inside walls. I wanted the batteries to be as flat as possible, instead of the usual "boxy chunk" battery packs. So here's what I'm trying: To...

Thanks for that info. My next project is going to be a trike, so I'm guessing that I might appreciate the extra power with a heavier bike. I'm also trying to learn more about battery packs and instrumentation. I have a head start since I'm a retired engineer, so I'm pretty sure I can learn...

I have a Hilltopper 250W 24V front wheel on my 7-speed Schwinn. I don't use it for sport, just for day-to-day transportation. (I almost never use my car any more.) My terrain is flat city roads, and my typical trip is 2 to 4 miles one way.My kit has no throttle, just a push button to kick in the...

Here you go: I may replace this box with an all metal box if I can find one the right size.

Thank you. I did have one problem. The battery is a bit smaller than the lock box, and when I hit a bump it often causes the switch on the battery to hit the inside of the box and turn the power off! I solved that with some foam padding cut to fit the size of the battery and keep the power...

I just installed my Hilltopper (250W) this morning, and spent the better part of the day cruising around town and running errands. I'm thrilled with my new eBike. I noticed that I quickly got in the habit of just pushing the button when I was already pedaling, so I used it just to boost my own...