diy solar

diy solar

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  • BYD Pack + Ant BMS + MPP Solar LV2424 + Battery Warmer in a Shed

    Here is my just completed solar setup. Since LFP battery does not like sub-zero temperature, I added a lead acid battery warmer and it keeps the battery at 20C, considering add some thermo control relay to control that around 10C then cut-off MPP Solar LV2424 connected to Raspberry Pi for...
  • Should I return Rockpals 500 to get something else?

    I currently have the Rockpals 500 (paid about $420, 4 days left for the return window) My only requirement is to power my 12v fridge + phone/tablet the max solar input I can achieve is about 85W (they claim it has MPPT in it but I dont believe because I can get 92W with my Renogy 40A MPPT...
  • BYD 24V LiFePo4 Battery Modules

    I am buying three of the BYD 24V battery modules, picking them up next week from batteryhookup store. According to the specs, it works with standard 24V systems (I have a MPP Solar 24V Hybrid Charger Inverter so sounds perfect to me) NOMINAL VOLTAGE IS 25.6V FULLY CHARGED IS 29.2V FULLY...
  • Trying to test the DC capacity test of DELTA1300

    Right now I am trying to test the capacity of the DELTA 1300 via DC Fully charged for 12 hours (ensure its really full) and connect to my DC compressor fridge (about 40-60W) after 20 hours, the panel is showing 47% and the meter is showing usage of 507.0Wh so far, I think the total capacity...
  • Always out of balance for my BYD 8S 220AH Pack? What to do?

    My pack currently has about 0.05V ~ 0.079V different between highest and lowest voltage of the cell the BMS is only able to balance it with 200mA current... What should I do? Active Balancer? Or just Charge to full and leave for a month to wait for it get balanced?
  • Recommendation for a bit accurate battery capacity/voltage/current monitor?

    I currently have the following stuff Clamp Meter, used by DavidPoz and I think I would take it as the point of truth??? https://www.amazon.ca/UNI-T-Current-Capacitance-Resistance-Measurement/dp/B01FNMCA6Q Voltage/Current/Capacity/Coulomb meter 1...
  • MPP AIO: Battery got drained when in Solar Only Mode

    This evening all my ups are triggered due to the mpp solar has been shut itself off strangely. Checking the BMS of my BYD Pack and found low voltage cut off is activated, wonder why Recently we are expeiencing rains and snows, so the battery is not getting charged via solar. and I did set...
  • $72 ANT BMS: Current Report by BMS is only half of the actual current

    Does anyone find the current report by the BMS is only half of the actual bms? Is it config issue or hardware issue of the BMS? Thanks,
  • Solar Panel for Sale! (Toronto, Canada)

    very unfortunately I have to move out of the region, need to selling all my solar stuff I have 6 pc of 230W Poly 60 Cell Panels Spec here Local pickup only DM for Price!
  • Prevent spark/damage when connecting battery

    Hey guys I am trying to figure out the way to prevent spark and damage to inverter/charger when connecting to the battery. I do know Will showed using a wirewound resistor to pre-charge the capacitor so that no spark and damage will happen. however, I have very difficult time to find a 25ohm...
  • Tiny BMS vs Ant BMS vs Chargery BMS vs Other Cheap BMS

    I am looking for BMS for my other 3 BYD battery packs so far I am happy with the Ant BMS as it has low temp cut off and highly configurable via Bluetooth with their App Bowsering the forum and I notice other two popular BMS, Tiny BMS and Chargery BMS Chargery BMS has software upgrade ability...
  • Anyone has experiences with wifibox for MPP Solar?

    I just hook the wifi box up with my LV2424 today. No 12V input needed for the wifi box (YAY, and the manual says it requires AC adapter but in fact you dont need it) Default it sends data to power-datacenter.com and honestly, it does not look secure or safe (no https) so... Is it possible...
  • Does anyone try to claim warranty of MPP Solar product?

    I got the LV2424 from usa-mpp-solar 2 months ago and I am extremely happy with my purchase. I am following the guide and get everything working But from yesterday... the USB Port of the inverter is not working. I tried with 3 different computers and same for all of them. Trying to contact...
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