Recent content by RyanAK

The copper wires are insulated, hard to tell from the picture. Its clear insulation (16ga speaker wire). I am assuming thats what you were referring to but if there are still concerns I am all ears.

Thank you both for your replies! A new soldering gun is on my list. I think the cold solder joints is an issue on another project I have also possibly even though its technically working. I will have to watch some videos on gluing plywood instead of routering so much wood out. I have never even...

Posted this partially built in a different post, just completed it! 5x 4400mah li-po pouch cells connected to a maker charging board. The solar panel is from Suntactics. I added a little fan for some air circulation per recommendation of another user. It kicks on automatically if the solar...

I am having an issue balancing the pack, not sure where to start troubleshooting. Parallel cell group #2 is out of balance compared to 1 and 3 that always stay balanced together. My top ideas: Charger issue (new one in the mail) Too much solder used (added resistance?) Length of wire to bms or...

Got it mostly back together. Waiting on the new charger, bms, and mppt solar controller to show up in the mail. Will update again after i (try to) fit all that in. Got it up to 11.5 volts currently, balancing right now.

Thank you! Using the 5 watt panel, it charged from 3% to 60% in about 3 hrs, and that was sitting on my table behind a foggy window on a cloudy day. I think it should be 15ah useable power. Using it to charge phones when camping mainly. I have a portable solar bt speaker, but its only a 3000mah...

Ahh good catch, yes heat is a thing isnt it! At the very least, the cells lifespan would lower from the heat. I do have an extra little inverter laying around, maybe I will add some cells and make a new case. How many AH do you have powering your little setups?

I had a random thought last night to use a small solar panel I've owned for years (and rarely use) and mate it with some batteries. I have a SunTactic sCharger-5 thats been sitting in a bug out bag for too long. I also have some extra 4400mah 3.7v pouch cells. Came up with this idea to match...

I just realized Im missing a 3S balance connector. Can i plug the 4s connector into this B6 and charge it as a 3s? I would hate to trip a bms after all this work :) I would like to charge it up a little bit since all the cells are sitting at 3.05v - 3.06v currently. I dont know how long before...

Very nice build. I did a build using the same case so its interesting to see a different variation. Love the parts list you provided...thanks for sharing

Perfect, thanks for the clarification! I will need to study up a bit more. I added the Daly 3s 100a smart bms to my cart, going to purchase it, since I am guessing it can peak to 150a-200a. It looks like you can adjust voltage cut offs, found some screen captures on one of their videos, so we...

Great info, thank you. I plan on using up to four panels, and being in AK I am thinking MPPT is the way to go since I also want the panels to be able to fully charge the unit and not just top off. I am going to transplant everything into a new case that will fit the BMS better along with a...

Thanks for all this information! I didnt see this reply until now and have been busy soldering most of the day. Took a few pics in between I posted below. I think I must have read your mind because I did exactly that and ended up with a 3S 26P configuration. Came out to 10"×7" and I have...

Tested the last 8 individual cells. 7 out of 8 were at 3.05v - 3.06v. Again, one of them was at 3.67. So the charger showing 4.2 must just be off and my multimeter seems consistent. I plan to discharge the 2 cells to 3.06 volts. I am really not wanting to disconnect all the other 60 cells and...

The charger was hooked up with alligator clips. For the meter i used prongs that i held on the leads pinched with my fingers until it was stable. I just finished un-soldering and testing 12 individual packs on the first PCG and 11 of them were 3.05v - 3.06v with one outlier being at 3.64v. I...