Recent content by bryn

Just thought i'd put it out there, BYD 125ah Cells are rated to charge at -20C and can deal with up to 3.8V per cell. Has anyone used them yet?

The answer is yes, if i recall you have 280ah cells? The issue you may have is if one of the BMS's shuts down and dumps the entire load on one BMS. Im running 2 of these BMS, with 12 volt 304 ah packs, splitting the load. I've set up restrictions to reduce the load to no more than 200ah as my...

I’ve learnt something new, thanks, I’ll look at ordering in some when I do my next stock order

I didn’t even consider Belleville washers, as I already had a few boxes of spring washers, as that’s my go to washer for vibration solutions. ‘I sourced the terminals from aliexpress, I used the 200amp versions, but they have 250 amp version as well...

I use the spring washer due to mobile use, the camper has seen thousands of km on rough corrugated dirt roads, and I’ve found that a spring washer works well to stop the bolts from backing out. I’ve used the same in boats, due to vibration, I trust spring washers than thread locker in this use...

While im here, i'll post some pics of the newer 200amp style on a mount from some scrap PETG and some nylon spacers, that i made for my older lithium battery, it might help someone with a visual. With this mount i just doubled sided taped it with VHB to the cells, bolts are M6 x 10mm crappy...

I just had a look in my picture files, i can't find one of just the wiring, i though i had more photos. But i've got one when it was unfinished, that you can see the switch, i have panels that i can remove to easy access the terminals and fusing. I've used the same wiring set up on my boat and...

Both banks are in parallel, connected by a blue seas 4 way isolating switch, so 1&2 together, off, or each bank running separately. Both banks have equal length Pos and Neg cables, to allow them to be independent if needed. I am seeing an extra 2 amp draw on the A battery over the B battery...

No i haven't, i have 2 x 304ah 12 volt banks that splits the load between each BMS, i went for the 200 amp BMS, incase one BMS failed and i the one remaining bms is still capable of doing 200 amp loads until i sort out the issue. I restricted my system to draw 200 amps

my order of another 2 bms arrived late last week, so I installed my 3rd 200amp JBD 4S today in my older lithium battery pack, I’ll keep one as a spare, just incase, I require a replacement down the road and it’s time sensitive. the newer models came better packed than the last two I ordered...

I can’t see you getting an old replacement from that reply. while is not ideal, just grab some 20mm x 2mm copper and extend it to the old style dimensions to make it work I guess that’s what I’ll be doing if I can’t get a spare for my 200amp units, as I also designed a box for it, I should...

I'd imagine that is the problem, the way they have been packaging these would lead to these issues. i got lucky with my 2 units with the way it was packed, a lot weren't Im chasing down a a old spare as well for my setup, the new setup doesn't work for me

Not yet, but there is a market for them, hopefully they are on it

The only advantage for me, is repeatable cold nozzle changes, with no change in Z axis with different nozzle sizes I get lazy and just end up using the .4 nozzle instead of using a better suited sized nozzle for the job, as its a pain to change. I got mine already assembled from Prusa, as the...

Not long to go then, until its finished printing, well less than when you started, 3D printing is so slow, looking forwards to seeing the finished unit Sorry to hear about your hand, chisels do a lot of damage, Car trim removal tools would work well for parts removal, although this isn't going...