Recent content by Kaplag

woo! Go version 4.0! (I'm really out of the loop)

Hey guys Just wanted to post a project I just tested. I doubt this is worth the time or money it takes to do, but I wanted to make end caps for my batteries based from dewalts method. realistically I don't see any benefit for this, but I thought it would be fun and was able to get most of my...

I think I've got it ok now, The charger was cutting off early. I think what helped was increasing it's charge voltage and also playing with the current cutoff until it was at a point that when the green light on the bms comes on, the green light on the charger also comes on and it turns off...

For anyone else with my model, here is what I found. The Pot on the far Left is a voltage adjustment pot. The pot on the far Right is also a voltage adjustment pot, but more sensitive, making larger voltage increments. Turning the pot counter clockwise increases voltage on both of them. The...

hey, guys I've been having trouble getting my charger to charge my cells through a Gary/Fechter Bms. I was having some issues with the bms but now I've successfully charged and balanced them once with a variable transformer. How are people testing which pots do what. Mine doesn't show voltage...

Great! Well I guess, I'll close this thread down. Thank you everyone who helped. I may have given up on it if it weren't for your encouragement and support. The lesson here is to have someone experienced look over your soldering if your new to soldering on boards. Also the tests may appear to...

Hey, all. The parts came in... I replaced the leds, swapped the resistors for their smaller counterparts, and replaced six or so 2.1V voltage detectors. It seems in order but I won't get my hopes up until someone can verify it. The LVC test worked for all of the channels. There is that moment...

Better Shunt test: So all of them light up bright at 4.5 but what do they start at. It changes for everyone and as there were some weird things with the lvc test there was also some off stuff with this. Some of the first few cells came on at 6.2, but the majority of them cam on at 3.65 but...

OK the results are in. LVC Test: channel 4, 5, and 8 don't work. Must have blown them when I forced the Main led to go green thinking it was supposed to. Channel 23 and 24 don't work. Need to study this more, but I may just be because of the wrong LEDs. Shunt Test: All channels light up when I...

It may not need to be cleaned as you said, but it is very old. It was something that I took from my grandfathers workshop. I mean no one makes things in a tin anymore. Here is what it looks like. My tin looks just like that first one, even a bit beat up : ] cool, I'll get to testing in a bit, I...

ok a new day and I'm ready to think again. I ran to radio shack and bought the closet I could find to the leds that burnt out. The leds are green and have a voltage of 2.1. The closest I could get to 2.05 V. Not sure if it will make the difference I need but it may be better than the red leds...

crap

Sure, maybe its time to retest all of the cells. I've tested it before, but since then the board has been through a lot. Your instructions are concise and easy to follow so thank you for reiterating them. I read another forum posting that you had commented on a lot and It helped when I was...

I built it using that. If it were as simple as following those instructions I'd be golden. Maybe some people had better luck.

two of the cells refuse to charge. The pack was a 8 pack that I had cut out two bad cells and but two good ones in. the two good ones aren't charging. This has happened with another back in a different configuration and the same deal, the new ones don't charge but the other do. so these are...