Recent content by Gould

Closing this out. Thank you for the great information and @Warpspeed for your practical assistance. Worked like a charm only need to discharge slightly once. Both packs are now absorbing to 14.2v with no over voltage alarms.

Thank you for this, very much appreciated. When discharging do I leave the pack together, still in series and BMS connected? Disconnecting other charging sources of course. Also, just bridge the resistor between positive/negative in the one cell? FYI I have 2 - 4 cell packs, 270ah each.

Apologies, daft me kicking in - what voltage are you referring to "if that is open circuit rested cell voltage"? Regarding charge settings, the BMS is set to 3.65 and the charger set to 14.2 or 3.55.

I moved them back into series pretty much right after top balance. Cells are in the same order as before. I've added a couple of screen shots showing the BMS configuration. I'll run them this weekend and see how they make out. The only issue is it's going into overvoltage with an absorption set...

When I caught the overvoltage it was at 0.100 on the single cell. Screen shot shows a delta of .049 after some balancing. I'm using the OverKill BMS.

Appreciate there are dozens of top balance threads going, but I'm struggling with an issue now for a couple of years and hoping for some guidance. I'm happy to provide my detailed approach but to summarize, I'm using the tried and tested method that most are using; cells in parallel taken to 0...

Hi everyone, May in western Canada means getting the RV ready to roll. I’ve had my system up and running for two years now and after a few mishaps, it’s been rock solid. It’s amazing what you forget during our 6 months of hibernation. Assuming that the cabling running from shore to the...

Haven’t had a problem with capacity yet but did go with as much solar as my poor roof could handle. Had a stint this summer with overcast weather for three days and could have pushed it to 5 or 6.

I haven’t spent the time to top balance each cell independently but am planning to do so this winter. Ultimately I turned down my bulk state until the BMS stopped tripping high voltage. At the end of the day I can get them to 14.1 without them complaining so it worked for my needs.

Do you have much air time with these boxes? Any concern that you can’t compress the cells? I went the way of DIY and unfortunately they didn’t hold up well - I have no choice but to put them on the hitch of my travel trailer. They’re inside a larger box but I just can’t get the box air tight...

Thanks. Just ordered this, will let everyone know how I make out. https://www.amazon.com/Charge-Converter-Charging-Waterproof-Regulator/dp/B0918CR35N/ref=mp_s_a_1_6?crid=WTN3BJ3I3MCZ&keywords=12v+to+usb&qid=1661958348&sprefix=12v+to+usb%2Caps%2C323&sr=8-6

Lol, I was told this by the sales manager at Victron. So frustrating. Thanks for reporting on your real world experience. I’ll go that route, the route I was headed down originally. You don’t happen to recall the 12v to USB converter you’re using?

Thought about that or a powered cable but am a little paranoid, this is the second unit after smoking the first - long story and unrelated. Just heard back from Victron after asking for a recommendation, their response was 30ft is too long, use the online portal lol. So forget about the $400...

So, I managed to get ahold of someone from Victron and duh, the USB has to supply data as well for the sending of configuration changes so a power supply won’t work. I’m going to source a well insulated 30’ USB extension and hope for the best. I’ll report back to close the loop.

Good morning all. After 18 months of on again off again work my solar system is finally complete and has proven to be nothing short of amazing. The convenience and freedom this setup has provided has really opened up our options for travel. The last order of business is installing the control...