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  1. mkaye

    Renogy sale on 400Ah

    https://ca.renogy.com/rego-12v-400ah-lithium-iron-phosphate-battery-with-renogy-one/?mc_cid=196fbdc342&mc_eid=b28b3b2cac great sale, not sure of the quality?? the wires look a little small
  2. mkaye

    wire size for short wire, battery to bus bar?

    i have a 280ah LFP, 2000W inverter right now i have 4/0 wire from battery terminals to bus bars thinking about size vs distance, these are only ~12" long are hard to manage i should be able to use a smaller, more flexible wire for the short distance and still manage my ~160A for the inverter? mark
  3. mkaye

    looking for Chargery ISO board

    getting a couple of 300A relays to replace my Gigavac relays have separate ports going to need an ISO board can i get 1 from Jason? aliexpress doesn't seem to have the ISO board mark
  4. mkaye

    Chargery acting strange

    been using the generator to power my house freezers since the storm on Sat yesterday i fired the generator up & the Chargery beeped and the current display was flashing HIGH charging set @70A, discharge @205A the generator uses about 25A for a couple of seconds to get going today i fired up the...
  5. mkaye

    replacing PD4655 with Boondocker 1260L?

    my PD4655 seems to be acting up every time i power it on my Chargery BMS disconnects my battery within 2s (last week OK, this week not) i have other charging sources i.e. solar & alternator that produce the same current w/o issues i have been troubleshooting but can't figure out what the...
  6. mkaye

    Chargery 8T disconnecting discharge bus

    i installed a balancer and missed the ground connection for the external power to the BMS BMS still worked as it was finding ground on the sense leads reconnected missing lead issue is, i turn on my converter and BMS opens the discharge relay within 2s (before & after missing lead) converter is...
  7. mkaye

    Xantrex Freedom X 2000W inverter - poor AC connection due to friction fit connections

    as much as i like this inverter, i don't like the push-in contacts for the AC last year my 120VAC quit while at an RV park, traced to poor connection on input AC wires after the trip i removed the inverter from under the sink to rework the 10ga wires i thought i had good connections here i am on...
  8. mkaye

    may need active balancer to supplement Chargery BMS

    i top balanced last year and everything was fine - 4S 280AH prismatic cells i have replaced 1 Bogart SCC with a Renogy SCC (does alternator too) so now i can get 30A from my alternator while driving been sitting in the driveway discharging a bit each night & recharging the next day from 200W...
  9. mkaye

    Bogart SC-2030 30A Charge Controller

    i bought this as a 2nd unit to handle charging from the alternator used a couple a months i decided the Renogy DCC30S was a better fit US$100
  10. mkaye

    Mike Sokol / RVelectricity stream on Lithium Battery Charging

    Here's Mike Sokol (from RVelectricity) and Dennis Wieske (from Progressive Dynamics) in our live-streamed discussion on how to match RV charging systems with Lithium Batteries. great video!
  11. mkaye

    to much idle time - thinking about upgrading again...

    when i bought my used RV it had (2) deep cycle batteries, 1 under the stairs and another on the other side with 6ga cables (not the best) (2) 100W solar panels on the roof connected to some weird solar controller also had a small 400W MSW inverter to supposedly run the fridge when propane wasn't...
  12. mkaye

    great video testing LFP vs AGM vs FLA

    Don't Waste Your Money On Batteries - The Shocking Truth I Discovered When Testing RV Batteries
  13. mkaye

    alternator charging LFP - choices?

    i have Bogart battery monitor - 1 30A SCC for solar, another 30A SCC for the alternator Chargery BMS alternator connection triggered by ignition RV w/2010 chevy express 3500 6L V8 - looks like 105A or 145A stock alternator Here is my limited understanding of the options: 1 alternator - when...
  14. mkaye

    Chargery 8s SOC 280Ah too low & doesn't match Bogart

    i have had the system working all summer for the past few weeks my RV was sitting in the driveway so, just the standard 12V drain overnight & then the 200W of roof solar would charge things back up i wanted to run the inverter a bit to drain the LFP battery lower to take it out for storage it...
  15. mkaye

    Xuba busbars - need some love

    i was checking things out & noticed i had 13/8/13mV voltage drop across my busbars with ~25A certainly more of a problem with 150A i took them off & noticed each had a small ridge around the hole i gently filed the bottoms flat and reinstalled now i have 3/4/3 mV @30A don't think i can get a...
  16. mkaye

    Class C - 280AH 12V installation

    finally have everything in still need to get connectors for the Chargery communications wire and cleanup the wiring around the 2 SCC
  17. mkaye

    Chargery communications cable - need 2 RJ9 connectors

    i ordered some RJ11's from Amazon that i thought were correct, but they are 6 pins, only the middle 4 have connections (too wide) after some more research i see that what i need are RJ9's anyone have a couple i can buy? everything on Amazon is delivery late August/Sept i can't find a source in...
  18. mkaye

    Bogart SC-2030 - not what i expected

    280AH 12V system yesterday i got to do a full charge using my solar panels and the SC-2030 i had: P1 "Charged" setpoint voltage @14.4V P2 "Charged" setpoint amps multiplier @2% P1 & P2 are used to calculate %Full based on the battery reaching P1 and current below (P2 * battery capacity) others...
  19. mkaye

    RV - 1st real life test of 280AH 12V system

    i finally got my induction plate back from my daughter so i could do some testing overnight draw reduced capacity to 98% (was 100% in the sun yesterday) full kettle took 7 minutes and reduced capacity to 93% induction plate is max 1600W, inverter showed 15.5KW, Bogart showed 138A moka pot took...
  20. mkaye

    Chargery BMS8T and 4S cells

    i connected my cells in series and starting bulk charging with 5A (best i could do) this is with the 8T connected, but no relays i let it run during the day, but disconnected at night cell balance was 10-15mv after 3 days an alarm went off that the cell balance had exceeded my 50mv threshold -...
  21. mkaye

    My solution for common load/charge wire on RV converter

    i purchased a Chargery BMS for my retrofit from a single 130AH FLA to 280AH LFP in my RV my design assumed i had a separate charging & load wire from the converter, but once i started taking things apart it became obvious there was only 1 wire the charging wire connects to the DC control board...
  22. mkaye

    Chargery - did i miss something?

    ordered a BMS8T for my 4S pack can i run it without an external power source? my assumption was that if using an external P/S it had to be 15-30V, but you could run a 4S pack internally mark
  23. mkaye

    Chargery relays bolt size?

    ordering everything i need to convert to 280ah 12V i ordered the 200A relays what size are the bolts so i can order the correct ring terminals? ,ark
  24. mkaye

    test equipment - what do i need?

    just ordered 4 LFP cells & the Chargery BMS8T w/relays for my RV to replace my FLA i have been playing with analog & digital circuits since the 60's i have a couple of decent DMM's and an oscilloscope and an accurate DC power supply (500ma max) so not useful here (& a house full of misc...
  25. mkaye

    are 280ah in 4S too much for RV?

    just about to pull the trigger on these, but... unless i use the microwave or instapot, my normal daily drain would be ~ 30ah (water pump, various fans, LED lights) today with my FLA battery i use the microwave rarely and have never used the instapot, but LFP will allow their use my fridge is...
  26. mkaye

    Chargery - use TE relays?

    i've read lots of threads on this forum and know that SSR's are evolving i'm getting 4S 280ah batteries and probably the BMS8T i found this in 1 of the other threads https://www.te.com/usa-en/product-1-1414939-4.datasheet.pdf a pair of these would handle my RV max discharge (~150A) / charging...
  27. mkaye

    RV setup?

    i have 1 lead-acid group 31 battery good for 130AH i have a bogart battery monitor & solar charger (200W on roof, 200W portable) and don't let it go below 80% very often - usable ~26ah i have a 1350W microwave and 2000W inverter that i use for short bursts - usually defrosting that is pulsing...
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