Search results

https://www.bluesea.com/products/category/27/Feed_Through_Connectors

I upgraded the stock 130A econoline alternator to a 200A alternator........the new one had a tag on it that rates it at 130A at idle. The van consumes about 60-70A idling.....checked with my clamp-on ammeter.......it's a 2008 so headlights are on all the time. So I have 60+amps headroom at...

Thanks! 2 month update.....Everything is bolted into the van and wired properly...battery fastened down. I've been on two camping trips; first one was 3 days and the second one a week, and the battery works great. Victron Orion charges at about 25A while driving, and 300W of solar adds to...

...After reassembling the battery I charged it with my intellepower 60A charger in the driveway (just in case anything was going to burst into flames... ?). The cell voltages as-received were 3.29V. This charger put out 45+ amps for quite a while before tapering off a bit and got the pack up to...

I got the crimp terminals, and fully threaded 3mm x 30mm long screws to allow the BMS to stay assembled when removing it from the top plate. I also ordered a 175A class T fuse and whipped up a fuse holder from some scrap Delrin and aluminum and mounted it to the front plate. The fully threaded...

That depends entirely on the spring rate and the expected expansion of the cells. The goal with many spring designs/implementations is to have a relatively constant spring load over the expected displacement. This implies a low spring rate, which usually means longer springs, since getting a...

Thanks......I've been reading here on the forum tonight......either 3.6 or 3.65V seems to be the target voltage. I get the idea that you want to balance a bit higher than your max BMS voltage cutoff...so there is less chance of a cell wandering as you pass through say 3.5 or 3.55 volts in...

While I'm waiting for a few parts.....namely crimp terminals.........let's talk top balancing..... I have a 60A Intellepower 9160 series RV charger, it outputs up to 60A at 13.6V. I also have a fairly generic lab bench supply with a max amperage output of 5A. My plan is to assemble the pack...

Thanks! ......the BMS screws that I have on-hand are not fully threaded, so they have to go in from the top, screw into the heat sink snuggly then nut off the bottom plate. With fully threaded fasteners screwed from the bottom up you can remove the BMS from the top plate without the bottom...

More progress........ The Amazon thermostat for the fan is on order. When I first laid out this design I had the height at 12".........when fabricating the end plates I decided I could likely get away with an 11" tall enclosure. That proved too tight for comfort once I got the 2 AWG wires and...

I'm Using the BMS threaded holes to mount it to the top plate with longer 3mm screws and plastic shoulder washers and spacers for isolation.

Can you point me to an appropriate thermostat? I'm planning on venting my electrical compartment and adding a fan. It's fairly large and has worked fine un-vented for years but while I'm there.......why not. My solar controller, fuse blocks, inverter, charger and batteries are all in there...

Well I don't have vertical airflow.......but I've put a fan with a speed control on the top......no idea how I'm going to control the fan though, but on the lowest potentiometer speed setting it's silent. I checked for continuity between both the plate and the heat sink to the B- and C-...

I was planning on mounting the non-finned side to the top.......although I'm still going through various configurations in my head. I'll be working on it today. Edit: I have it right here and mounting the smooth side to the top isn't going to fly...........so on to plan B, C, D....

Those are ideal! .....but a bit pricey..... Thinking I can fabricate some with the threaded M8 copper studs.

Thanks for that! Ordering some tomorrow.....

The bottom, sides and top all just slide a little in the saw kerfs.......the trick to the whole stack-up (besides springs rates and preload) is when the cells are discharged and clamped to the target psi that the bottom, sides and top are not bottomed in the groove. ....and as the cells expand...

Thanks! I've done some homework here on the forum and reached the same conclusion.....thinking about some machined rod stock through the end plate isolated by larger delrin or nylon shoulder washers. I have aluminum.........and copper is $$$ so aluminum will likely be first try.

I'm replacing two aging 170ah AGMs in my camper van with this battery. The AGMs were Lucent/Alcatel server backup batteries and were about 7.5" wide, and the enclosure in the van just fit them.........so I'm limited to a width of 7.5" for the new pack. I'm fabricating it from aluminum because...