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  • Post in thread: 12v Battery with Overkill Solar BMS

    Shipping LFP batteries is such a pain! I can ship (US only) just the BMS for $110 if you are interested. Thanks.
  • Post in thread: Overkill bms charge options

    Thanks for the response! I have the bms on backorder and will examine the android app when received. Your answer is helpful. I will be able to temporarly stop charging voltage, disable charging in the app, then reestablish charging voltage. I think that would solve any possible issues and have...
  • Post in thread: Overkill bms charge options

    Ok, here's my big plan. Thanks for all that gave input. Feel free to comment! Goal: Modification to boat that had 12v system with 6 Agm's, 110vac charger for 12v, 12v solar, 12v alternator. Replacing one agm house with lifepo4 "house" bank. Normally all agm's would connect together via Victron...
  • Post in thread: 12v Battery with Overkill Solar BMS

    I have a DIY 12V, 200Ah battery with Overkill Solar BMS located near Ft Myers, FL. Any reasonable price. Local pickup if possible. It worked fine on our boat to increase our house bank. One cell (#4) is weak. Thanks, Jim
  • Post in thread: Overkill bms charge options

    Thanks Ampster! That's my plan now. Set CV on 120vac charger and solar and let bms protect lithium. (120vac charger is powered by inverter via 48 volt lithium that has gobs of solar. Yes, some loss in 48v solar to 110vac to 12v dc, but a compromise for ease of use.)
  • Post in thread: 12v Battery with Overkill Solar BMS

    I will sell this cheap!
  • Post in thread: Overkill bms charge options

    Ampster: My situation is probably fairly unique. On my boat I have multiple charging sources (3) and many battery banks (4). I'm trying to keep them all happy and not damaged by my modifications. Thanks for everyone's input, I will continue reading them, researcing elseware and report back in...
  • Post in thread: Overkill bms charge options

    Need help. Which methods allow the Overkill bms to turn off charging? In my application (marine) I need to be able to easily turn off charging at times. Charging current is present but I need to prevent it. (long term storage needing 50% SOC for long life, and other batteries (AGM) in the...
  • Post in thread: Overkill bms charge options

    Thanks to Amster, Horsefly, and others. I'm getting closer to my final modifications. Please confirm that both charge and discharge can be turned off from the app. Will this essentially disconnect the pack from the loads & charging? I understand from other posts that the remaining draw from...
  • Post in thread: Overkill bms charge options

    Horsefly, Great! I'll be able to power down and disconnect the Lithium Overkill BMS for when my boat is inactive. I'll plan to arrive back at the dock at 50-60% SOC and be assured it will be just a little lower when it's time for the next cruise. The rest of the connected DC circuit with...
  • Post in thread: Overkill bms charge options

    Thanks Peter for the info! On the Victron forum I asked that question and they indicated that I wouldn't harm anything by connecting it to a battery. The solar charger will output 15 amps max or whatever the panels are producing. The issue might be that the AGM's might power the "load" and...

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