Recent content by mastershake916

Thank you everyone for your replies. This is what I'm most interested in. Pedaling varies, so I'd like to know the efficiency for motor-only, maybe at a set speed, such as 20mph. I think that this figure is just as important as top speed.

Who has the most efficient bike? Also, what's the most efficient production e-bike?

Okay, going to look at it in an hour or two, fingers crossed. Stay tuned!

Okay, after a little bit of sleuthing, the ebay seller is chinarichroc2009 (http://myworld.ebay.com/chinarichroc2009) AKA Zita Huang of RICHROC (http://myworld.ebay.com/chinarichroc2009) Also selling through DIYTrade (http://www.aliexpress.com/store/612373) and AliExpress...

@dnmun & Dogman: Thanks for the advice, that's a lot more than I though that I'd be able to do with a voltmeter! I will post my results, and if I have any more questions, I will let you know. @999zip999: How would I be able to know if it is a 220 cell pack? @iamsofunny: Are you thinking of a...

I've very new at non-SLA battery packs, do you have any visual aid to illustrate the process? Thanks.

Okay, so I'm going to look at a LiFePO4 48v 20ah battery back that's for sale on craigslist for $200. The sell says that he bought it on ebay a month ago for $600, but lost interest, which I believe. If I test the voltage, what should I be looking for? I was thinking about buying a power...

Thanks for the quick replies. I'm looking to use it to test the capacity of used batteries.

I'm thinking of purchasing the "Turnigy 130A Watt Meter and Power Analyzer": http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10080 But am wondering if it has a function to measure battery capacity. Thanks for the help.

Nice solution. What's the range on those suckers? They look like serious moped killers.

Thanks! I'm stuck with SLAs right now but look forward to working with less archaic battery technologies soon!

First off, don't jump on me for not looking it up, I've been lurking for a while and tried to look it up a few times. So what does the "s" mean? What is the voltage per "s'"? Thanks.

I have always thought that they would be great e-bikes, but couldn't see a good way to use a hub motor on it because of the 14mm dropouts. How did you do it?

Well right now it is of course, did you read the article?

I thought that SLA recycling was one of the most successful. I think one of those "how it's done" basic cable TV shows they showed a recycling plant in the US that did SLAs. A lot of e-waste recycling truly is a problem, but I'm not so sure that this is the case with SLA batteries.