Recent content by Christobel931

That looks real nice.. sorry about your battery, bummer! Are you planning to cover the contacts on your relay? Looks like it could get shorted maybe? Look forward to seeing that thing run. :D

You've got some really innovative stuff going on there, nice work. I found this generator idea particularly interesting... Almost one of those "why didn't I think of that" moments...lol. Have you sourced anything small enough that you could mount on the bike for that? Unlimited range...hmm...

I don't know what kind it is Fetcher. My vendor suggests shallow discharge cycles to get it to balance, but if one cell keeps shooting up to 3.8V and shutting everything down, I don't see that happening. I can send it back for a check and manual balancing, but then I have no wheels. I still...

Thanks guys, I see that the BMS is indeed shutting off after one cell gets to 3.8v. That is great that the cell is being is protected, but the low cells aren't being topped off. I will run it through a few shallow cycles to see if I can get it closer, but that's kinda how I've been riding it...

I have a 36V 15ah Lifepo4 pack that seems to be out of balance. The LVC is ~30V however, It cuts out at right on 35v under a load of ~21amps. Measuring the battery after use I find the cells pretty evenly drained to ~3.3v resting, except for one that is only 3.07v. During charging this cell...

Zoot, How do you support your battery packs? Are they just strapped in the Freeradical bags? Dig your setup man... :D Chris

In my opinion, you might be kicking yourself if you don't get the 48v. You can always dial back the speed a little to maintain a comfortable pedal cadence. I think a lot of folks around here have tried to save a few bucks in the beginning, only to spend many times more later in upgrades...

Dogman, Which gearmotor are you looking at? Is that the "worldwide" kit or something?

My motor makes the same noise if I try to start from a dead stop, or when I'm on a steep climb and the motor start to slow and work hard. I think its normal, just some vibration that is amplified by the spokes and wheel.

That is nice to have a rest like that before you get home, mine is uphill till the last 1/4mi. so even if I try to take it easy, I'm still all overheated when I arrive... no time to "aircool"... :D I tried to range test my battery today... I've never had it cut out on me, till today, and it...

I'm not sure there would be room in this controller... the caps might fit but not much room under the board... FYI, I'm an electrician, so I get most of the theory, but, the board level stuff can cause some mind melting on my part.. :oops: :wink: Edit: Mr Ping advises using diodes in...

Return trip is ALWAYS uphill, so yeah, a nice reliable setup, with more than enough power is the goal. What I got is good, if I lived in a flatter area, my bike would be done, but, I'm not so lucky in that regard. :cry: The controller is a WE brand but the same one that is pictured here, in...

Your ideas on the mods are most interesting, if not a little intimidating.. :lol: ebikes.ca has 20 and 30amp, 24-72V contollers for sale, Justin says he sets the LVC for 19V and lets the CA and user set the rest. I can see ending up with my current controller modded and running on a townie...

The return trip after something fails...!

Hi all, So I am considering getting a ping 24V 15ah, battery to connect to my 36v15ah HTB lifepoe in series for 60v nominal ... both have a BMS, can this be done with out heavy mods to the batteries? I will be changing to a 24-72v controller and CA to limit thinks and keep an eye out. Lots...