Recent content by sal_park

Assume you are after something like pinout or wire colours ? Have a dig around here and you'll find some: https://github.com/OpenSourceEBike/TSDZ2_wiki/wiki eg https://github.com/OpenSourceEBike/TSDZ2_wiki/wiki/Wire-860C-850C-to-TSDZ2 hth

Hi, I built a couple of ebikes a few years ago (since sold) and am getting the itch to build one again and thought it would be a good idea to check here in case there are other/better ways of going about this that people might be able to suggest. I'm looking to build a full suspension ebike...

Looks like my old charger was toast: my new charger has just charged the battery to 41.87v.

As someone else said above use car headlight bulbs. I used 3 in series on my 36v li-ion battery and that was good for around 4-5 amps if I remember correctly. You need to match the voltage of the bulbs with the battery voltage so if your 4s battery is 14volts (close enough to 12v) then just put...

Hi, I did do that, but didn't put the results in the post, I guess I forgot. When I measured the voltage of the first cell at various point in the charge cycle the voltage slowly rose to around 3.9something. I also measured the current which was a bit all over the place but the max I saw was...

Yea, I tried to measure the voltage from the charge lead, but didn't get anthing - I suspect the resistance of the DVM was too high so the charger would not turn on. I then plugged the charger into the battery and the DVM into the output plug from the battery. With the charger off: 39.something...

So I opened it up, and sure enough it's got a full in BMS in there :( I measured the cell voltages before charging it (it was at around 50% charge state at this point): (lowest 3.666, highest 3.775) 3.775, 3.775, 3.770, 3.770, 3.774, 3.769, 3.774, 3.666, 3.773, 3.770 I then charged on my...

Thanks d8veh. Will update this thread when I've done that. sal

Hi crea2k, I agree it would be better to use a balance charger, but right now I need to spend as little as possible to eek out some more use of this battery. In the medium term I'm going to replace it with some RC packs from hobby king which will be balance charged. sp

Hi, I've got a 36v 10Ah Li-ion battery, and I've had it for a year or so and probably used it for 200 charges or so. Anyway, now it seems to be way down on range - it will cut out after a mile or so. If I turn the battery off/on it will always start again but would cut out (LVC) if I draw too...

Generic battery from china, 10Ah 36v

Have a look at this http://www.powerstream.com/Wire_Size.htm For a bike you need to look at the "Maximum amps for chassis wiring" and I would probably pick something like 12AWG which you can buy from here (hobby king)

the above post is trying to be help. Blunt sure, but help. The batteries and power in these system can be dangerous. Have a read through this thread here.. Something else that is really good to understand: the current carrying capacity of a system needs thick wires. The voltage carrying...

I would say that motor would be capable of drawing way more than 13 amps. I've not used one myself, but my 500W motor can draw more than 20 amps at times No, it too thin. It will probably heat up and melt the insulation. If you're lucky (and have a fuse) it will blow this and you'll have a...

I doubt it, I suspect that on the battery it says something like 4.6Ah ? This means that the pack can supply 4.6 amps for 1 hour or say 0.46 amps for 10 hours - it has nothing to do with the maximum instantaneous current the battery can supply. I suspect that your setup with a 1000W motor will...