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  1. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    3 wires on the outgoing side, 4 on the connector side? Either way, the GPS connector on my BMS is 4-pin, so given that there are BMSses with combined ports, it could have changed somewhere along the line...
  2. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    "does have the connector on the one end" Yes, but it looks like a 4 pin connector. Perhaps your BMS has the 4-pin GPS/RS485 combined port, mine has a 3-pin RS485 port.
  3. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    Yep, very small. I ordered a set of the cables I mentioned, and the USB-serial converter. Let's see. I couldn't find an 'official JK' thing with a female 3-pin slot, so that puzzled me. And you still need the USB converter after that. When the stuff arrives, I'll let you know, current...
  4. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    I've got a PC case fan here as well, but on the female connector, the pin holes are 2.5mm apart. I just checked my BMS, pins are 1.25mm apart, so that won't fit. I did find these, 3 or 4 pins available...
  5. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    Now trying to figure out what connector it is on the BMS side. Looks like Picoblade >...
  6. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    OK, thanks for the explanation. It seems mine has a slightly different connector on the BMS side and separate ones for RS485 and GPS.
  7. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    So the official JK module has 3 wires that go to the GX Device, you intend to use 2, the data wires only? But you would still need to have a tiny connector on the BMS side, right? And you expect the USB port converter to accept the data wires from the BMS? The JK module has more wires on the...
  8. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    Right, 3 wires, my bad. From the link above by @jamiegreen - this looks like 2 connections?
  9. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    So, that, in combination with this https://nl.aliexpress.com/item/1005003451100409.html?spm=a2g0o.store_pc_groupList.8148356.16.47695b86tNdzqO But the USB-connector has only 2 slots for wires, while the RS485 has 4 wires? (edit: 3 wires, Martijn, 3 wires) You probably know of this makes sense...
  10. M

    Victron VenusOS driver for serial connected BMS available - LLT/JBD / Daly Smart / ANT / JKBMS / Heltec

    Oh, this is very very interesting! However, I'm confused as to what cable I should use for a JK BMS to connect to my MultiPlus II? Any pointers?
  11. M

    Daly Smart BMS SOC not show

    You need to set the capacity and charge to full. The voltage isn't a proper indication of the SOC due to the flat curve, so it will use the cumulative discharge current to calculate the SOC.
  12. M

    24 x 200ah cells to make biggest ah 24v battery.

    It is strange the JK website doesn't list these. HeltecBMS seems to have an 8S version as well. All the JK-variants 8S with 2A balancing are 200A only. I have no idea how they do this. :)
  13. M

    24 x 200ah cells to make biggest ah 24v battery.

    The Minerals one is also based on JK. I'm not sure how they're doing that, but the HankzorBMS store lists them as "JK BMS".
  14. M

    24 x 200ah cells to make biggest ah 24v battery.

    Just purchased one from the HankzorBMS store, I was told starting voltage has been lowered to 20V. Checked the manual, it says 20V: https://github.com/NEEY-electronic/JK/tree/JK-BMS?spm=a2g0o.detail.1000023.4.758f6224eNjVM2
  15. M

    24 x 200ah cells to make biggest ah 24v battery.

    I'll be buying one this week so I'll try it out when the cells arrive. Kinda ruined my 250A Daly BMS during a firmware update 😩
  16. M

    24 x 200ah cells to make biggest ah 24v battery.

    Alternatively, there's this one (also a JK variant) https://diysolarforum.com/threads/minerals-8s-200a-smart-bms-with-2a-active-balancing-via-andy-offgridgarage.30106/
  17. M

    24 x 200ah cells to make biggest ah 24v battery.

    This shop told me that the 1A, 2A, 5A balancing versions support 24V now. https://nl.aliexpress.com/item/1005003104573871.html?spm=a2g0o.store_pc_groupList.8148356.10.306d5b86nFyYaJ
  18. M

    24 x 200ah cells to make biggest ah 24v battery.

    Newer JKs should support 24V as the power supply, it was a recent change.
  19. M

    "Minerals" 8S 200A smart BMS, with 2A active balancing, via Andy/OffgridGarage

    Yep, that's what Hankzor told me as well. And a support rep at Minerals told me that the BMS listed above is a JK model too, with support for 24V, powered by the battery itself.
  20. M

    Daly smart BMS android app question

    There's a setting for the balance voltage, it will do this while charging. You need to charge and discharge quite a lot, not just a little, I believe (from my testing)
  21. M

    Daly smart BMS android app question

    'balance slider' > it's not an interactive slider, but an indicator showing the BMS is balancing the cells 'cycle count' > going to (close to) 100% and going to (close to) low voltage cut-off and back up.
  22. M

    Instock 24v BMS?

    Mind you, the specs say 48V. The JK manual states that it needs a 'booster' (DC/DC converter) to supply it with power. See also https://diysolarforum.com/threads/minerals-8s-200a-smart-bms-with-2a-active-balancing-via-andy-offgridgarage.30106/
  23. M

    Daly 250A, current (amperage) reading jumping/inaccurate/inconsistent

    I got a firmware update with a software attempt to a fix, but the update failed several times and ended up in a completely dead BMS.
  24. M

    "Minerals" 8S 200A smart BMS, with 2A active balancing, via Andy/OffgridGarage

    I've been chatting with someone from HankzorBMS and they're telling me they lowered the 'starting voltage' for their BMS too. Also a rebranded JK. https://nl.aliexpress.com/item/1005003104573871.html I would like to oversize a bit, a 250A would be ideal... I destroyed my rebranded Daly with a...
  25. M

    "Minerals" 8S 200A smart BMS, with 2A active balancing, via Andy/OffgridGarage

    As Andy was testing the 48V JK BMS (click for video) on a 4S/8S system, you need a DC/DC converter. But, he also has a link available for an 7S-8S 24V BMS with 2A active balancing, see second entry: https://off-grid-garage.com/battery-management-systems-bms/ AliExpress links...
  26. M

    Avoid AliExpress "LiitokalaVariCoreFlagship Store" from "$433 280Ah LiFePO4 Cells Tested: Cheaper than lead acid!" video

    Oh, I could very well be wrong. A quick search sent me to the Community pages where users complained about the very same issue, found posts about it from 2020. Perhaps it's fixed now.
  27. M

    Avoid AliExpress "LiitokalaVariCoreFlagship Store" from "$433 280Ah LiFePO4 Cells Tested: Cheaper than lead acid!" video

    As far as I know, Victron doesn't support Bluetooth for PC connections, but I'm rather new to this stuff ;)
  28. M

    Avoid AliExpress "LiitokalaVariCoreFlagship Store" from "$433 280Ah LiFePO4 Cells Tested: Cheaper than lead acid!" video

    I used a Victron shunt and the Victron portal via the Cerbo GX, given that I'm building a vehicular setup.
  29. M

    Daly BMS balance wire size?

    The balance wires are tiny, I believe 22AWG.
  30. M

    EVE 280ah 24v battery frame

    This is something I've been wondering about as well. Guess I'll get myself a class-T fuse fitted from battery to first busbar.
  31. M

    EVE 280ah 24v battery frame

    I have a Victron MultiPlus 24/3000 as well, but as far as I can see, the battery cable (from cells to shunt/connection and then to the MultiPlus) can be 50mm2, cause you're way below 5m. Or am I missing something?
  32. M

    Avoid AliExpress "LiitokalaVariCoreFlagship Store" from "$433 280Ah LiFePO4 Cells Tested: Cheaper than lead acid!" video

    Ha, they didn't even bother scratching our the QR code, they just removed the capacity! What a vendor...
  33. M

    Avoid AliExpress "LiitokalaVariCoreFlagship Store" from "$433 280Ah LiFePO4 Cells Tested: Cheaper than lead acid!" video

    Don't forget to write up a review at the AliExpress page for the product as well.
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