diy solar

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  • Post in thread: Best Panel option

    I am assembling components for converting my RV to Lithium and Solar. I have a Renogy Rover 40A SCC with max voltage of 100V and have room for two Newpowa 200W solar panels. The options are 12V or 24V panels, if I use the 24V panels I don't need to fuse the PV lines, but am I missing...
  • Post in thread: What is this cell trying to tell me?

    100 AH battery was continually tripping off on COV before fully charged. I tried charge and discharge within the balance parameters, I did this 12 times and only saw 6 mv improvement in balance (DV was approx. 0.320 v). After researching this forum I mustered confidence to top balance the...
  • Post in thread: SOK 100A charging over current protection.

    I have 2 x 100A SOKs in parallel (50A stated max charge current) and was planning to install a 100A magnetic/hydraulic breaker in the charge line but not sure if that is a good option. My question is, does the SOK BMS trip on charging over current, if yes at what amps? And if it does how is it...
  • Post in thread: SOK 100A charging over current protection.

    Thanks, I've asked the question to SOK. I'll report the answer here if I get one.
  • Post in thread: Why charge current is required for balancing.

    Why do lifepo4 BMS cell balance programs require a charge current be present in order to work? I have an hour absorption at 14.4 v for my 12v battery but for most of the time the current is insufficient to allow balancing, which seems counter productive!
  • Post in thread: SOK 100A charging over current protection.

    Reply from Min at SOK : SOK BMS would shut off if the charge current over to 60amps, but sometimes, if there is a peak very high current, it would cause the BMS burnt. If over 60amps, BMS shut off, just charge it, it would be back to work, very easy, no any damaged.
  • Post in thread: Why charge current is required for balancing.

    Battery is SOK 100AH, and I'm not seeing any improvement of DV from 0.114 mv over four charge cycles and one cell gets close to 3.69 v and C MOS shutdown. I have no control over the BMS balance settings. I am trying to ensure my system will not require regular physical maintenance before I...
  • Post in thread: Glass Solar Path Lights

    I have bought and thrown out at least three sets of solar path lights because the small plastic solar panels they use degrade and become opaque over time. Last year I saw an add for solar path lights that had glass solar panels, I think they were around $70 each! But I failed to bookmark the...
  • Post in thread: MC4 connectors

    looking for advice regarding connecting solar panels on the roof and whether the MC4 connectors are UV rated. My panels are separated by about two feet, close enough to connect the wires from each panel but too far for the connectors to be under either panel. Is it ok for them to be out in the...
  • Post in thread: Xanrax freedom X 2000 Max DC draw

    Hi, can't seem to find the answer to this! I am a little concerned that the freedom x 2000 I have may trip the BMS in my two paralleled SOK 100ah batteries after hearing how touchy they are on discharge over current. I calculate that at 87% eff 2000w equates to approx. 184 amps at 12.5v. But...
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