crusoe wrote:Where is this enclosure you speak of?
you have to send me $5 by paypal and then i'll send pictures of it.
or, you can see pics of it in development from p. 1-5 of this thread, with the more recent here
on p.6, but beware that you'll actually have to click the page number.
(it's just a quick and dirty, nothing to rival keyne's and co..)
so, andrey, how did my wiring job compare to your diagram? your instructions were to:
1) AC in on P1/P2
2) Jump D1 > A3 (41.5V)
3) Add Power SW on B3 > A3
4) P4 = + and P5 = -
I found it rather challenging to solder to the jumper pins and accidentally soldered two by accident, (foreshadow)
but i finally succeeded on D1>A3, and then realized that since B3 is a shorter pin, I could cut up and insert a JST-XH to connect to the SW line....
Then I took particular attention to your suggestion below and chose 12g HK noodle wire:
and do not forget to use at least 12awg
wires for DC output - I tried 14awg initially and those were hot to touch after 2-3 minutes of use, So I replaced mine to 12awg.
After soldering it all up, I plugged it in and measured 42V at the end! WOOHOO!
I knew I'd need to figure out a way to secure those connection points, but it was getting late, and I was determined to get this charger running for today (since I had a long noon errand). So I went and built the 20s -> 10s battery connector/plug, after carefully drawing it up, soldered it:
Then I was about to epoxy the connectors, ideally on the pack so it mated perfectly, so I put each connector pair in place slowly, thinking of etard's kff, and trying to convince myself that I did it all correctly, when I gently made contact with the last connector and suddenly heard this zapping, frying sound somewhere on the charger.
I yanked off the battery connectors and damnit, half of the strands of the 12g HK wire had frayed out over the jumpers! I should have tinned those leads, but instead twisted the strands and soldered them in place, but obviously didn't get them all!
Horror. Disbelief. Shame. Denial. Apathy. Disgust. It was after midnight so I went to bed.
This morning I unsoldered the HK noodle wire and soldered in place 2" of solid 12g household and made sure the other pins were clear. I plugged in the AC and was greeted with more odd electronic sounds, which I'm started to equate with ebike pain:
I let it go for a bit longer, and then the FAN cam on! A reprieve! I bravely hooked it up to a pack but nothing happened, and then checked the DC output and there was nothing, 0V...
What makes that sound? Any suggestions what to look for?
And stop laughing emil, or I'll make an animated gif of the last pictures you sent from that island.
I don't think dbaker will answer the phone next time I call. Don't worry, I haven't fried your ebike tester, yet