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  1. OffGridGuy

    Luyuan battery case

    I have a pair of PB2A16S20P's with the large screens, in use now. (16Channel200MaxAmp2AmpBalance) They've been running great for 4 months or so.
  2. OffGridGuy

    Luyuan battery case

    Well, I'm the happy guy !! I Chatted with Amy, after her return from vacation. After a few days, I ordered a pair of 8 x 280ah boxes with the newer JK BMS mounting. Payment received 2/27, shipped on 3/7 and I just received notice that they have arrived at FEDEX US, with delivery scheduled on...
  3. OffGridGuy

    Updated JK-PB2A16S-20PH from v15.06 to v15.10 and lost heat function.

    Howdy, Just an idle thought.... Looks like you don't have the battery sense/thermometer cables plugged in. The new firmware may look for the temperature inputs, before enabling the heating functions....
  4. OffGridGuy

    Jk BMS help.

    Howdy, I have a number of JK BMS's and have been very happy with them. But one of them developed the exact same issue "cell count is not equal to settings". The board had been sitting on the shelf for a few months. I had hooked it up as an 8S system, with pre-top balanced cells. The system...
  5. OffGridGuy

    What changes do I make in my two midnite classic charge controllers? I made the switch from AGMs to eg4 lifepo.

    Howdy, Our resident Midnite Classic expert is Steve_S Scan for his articles, especially the 'My final config for Midnite Classic' Excellent, fully explained, step by step instructions..... I've owned Midnite Classics forever and still learned a few new tips from him... Enjoy..
  6. OffGridGuy

    18650 Battery Store Legit? Will not answer the phone.

    Howdy, I've had excellent communitacions with them. I actually talked with Steven in Tech Support, last Friday. He mentioned that they were going to a trade show in Fla. this week, and he would try to work with me while they were out of the office. So, maybe it's just bad timing, which...
  7. OffGridGuy

    Bluetooth BMS' and using an "Android PC" for monitoring.

    Howdy, Looks like an interesting project... I'll be following it. Thanks
  8. OffGridGuy

    Remote monitoring

    I'm in town, shopping and here is a screenshot from my cellphone. Enjoy....
  9. OffGridGuy

    Remote monitoring

    Howdy, I've been monitoring my off-grid system, remotely using cellular, for years. On the MidNite Forum checkout the sections 'Raspberry Pi' and 'Node Red'. Your will need a MidNite Classic, an ethernet cable, a Raspberry Pi, and some sort of cellular or starlink interface. Thru the years...
  10. OffGridGuy

    EVE/Lishen shipping box dimensions

    Howdy, I've dealt with Amy Zheng at Docan a number of times. All my dealings were 100% positive. She is a professional. Good luck with your dealings.....
  11. OffGridGuy

    Anderson Power Pole-amps

    I've used them for years and they are great quick connect/disconnect plugs. Beware of the cheap overseas imitations, usually found on Amazon and Ebay..... get true Anderson Powerpole products. Powerwerx is a good supplier. Enjoy...
  12. OffGridGuy

    Steve_S-Tech: My Final Config for Midnite Classic SCC & JKBMS' w/ Large Bank (works amazingly well) Includes Charge Profile & BMS Config

    Steve, As I've mentioned before, I've had this off grid property for 20 years and I have finally switched over to Lithium based batteries, this year. Since your system is almost exactly the same as mine (Midnight, JKBMS, Trace) I've been watching your progress with interest. After the last...
  13. OffGridGuy

    Steve_S update.

    We all wish you the best !!!! Please keep us updated, when you can.... Good luck friend.....
  14. OffGridGuy

    DOCAN POWER shipping/lead time from TX warehouse?

    I've been communicating with their staff for a few months. To the best of my knowledge although the warehouse is in Houston, the order is being processed by the staff in China. If you put your order in on Friday, it would be Saturday in China. After a number of excellent orders with them, I...
  15. OffGridGuy

    Our NEW GO-TO LiFePO4 vendor...09.20.21

    Howdy, I just took delivery of another 8 EVE282's from Docan USA. Arrived on time and in excellent condition. They are still top balancing and I'll be putting them on line next week. Contact Wendy or Amy, they are ROCK STARS....
  16. OffGridGuy

    Is having two Victron MPPTs connected better than having one bigger MPPT?

    The Victron equipment is designed to play well with themselves. I have not tried pairing with the Smart Shunt, but a quick scan of the documents indicated that it should work. Actually I did see your other post and had a few thoughts..... I've used Daly BMS's on small systems, but over the...
  17. OffGridGuy

    Is having two Victron MPPTs connected better than having one bigger MPPT?

    Howdy, I have a similar shading issue with one of my smaller systems. I have 10 70 watt panels facing directly South and 2 275 watt panels facing South West. I use a Victron MPPT SCC on each bank. And Victron makes a great little device called Victron Energy Smart Battery Sense This $39...
  18. OffGridGuy

    Intro from old engineer

    I'm also a retired firmware guy... Started with the 8085 and Z80... did a ton of 8088 CPM bios integrations... and then spent the next 15 years or so as a PIC subcontractor.... 16F84 thru the PIC24 series.... Now retired, I'm happy 'playing' with ESP8266 and ESP32's.... Life is good.....
  19. OffGridGuy

    First battery build - Going to take the plunge

    Howdy, Good choice. I bought 8 batteries from her a few months ago it was an excellent transaction. I've got a few JBD BMS's and they are a good unit. I recently tried a JK BMS (Heltek) 8S with 2 amp balance. Overall I like this unit much better. Solid software both on the phone app...
  20. OffGridGuy

    IOTA Engineering IQ4 LiFePO4 Module Discussion

    Boondocker... I totally agree. I've always liked Iota products. But it is a lame execution. I'm retired, after a 35 year career as a contract firmware engineer and I can totally vision the marketing meeting where they brewed up these collection of modules. But I've got a half dozen of these...
  21. OffGridGuy

    IOTA Engineering IQ4 LiFePO4 Module Discussion

    Howdy, I've used a number of Iota's to charge various battery packs over the years. (mostly AGM's) When their Lithium IQ4 adapter I snagged one to charge a Battleborn. I quickly decided it was a 'marketing dept' joke..... but after a lot of playing and looking at their manual.... Bulk mode...
  22. OffGridGuy

    JBD BMS JST plug type

    Check these on Amazon..... I've used them on various projects.... https://www.amazon.com/Pieces-JST-PHR-Connector-Female-Header/dp/B0731MZCGF Zoom in and verify they will slide into your connector.... Enjoy
  23. OffGridGuy

    Multiple MPPT's and Connection to Battery Bank

    Howdy, looks like a nice project. The Victron line of MPPT charge controllers has a $39 dollar device, called the Victron Smart Battery Sense. You connect it to battery and via Bluetooth it will network both of your charge controllers. So then both of your charge controllers will be in sync...
  24. OffGridGuy

    Midnite - Victron - Other - Help me choose

    It will be easier than you think..... Both of the head honcho's at Midnite are active members on this forum. If you search through the recent Midnite threads, you'll find there was an open invite to forum members to stop by and get the 30 cent tour of the factory. They are really great guys...
  25. OffGridGuy

    Midnite - Victron - Other - Help me choose

    Howdy, I totally agree with the early posters. And I'm from Western Washington. I am a long time Midnite user. I am very happy with their Classic 150. Built like a battle ship. Easy to set up and then forget. I monitor them daily, but haven't touched them in years.... I also have a few...
  26. OffGridGuy

    JiKong (JK) (Neey/Hankzor/HelTec/etc) Smart BMS with Active Balancer BT/Can/RS485 (Input Discussion pre-purchase)

    Hi Steve, Similar backgrounds... I started playing with Node-Red and Tasmota a few years ago and went a little nuts. I've have over 40 sensors and relay modules spread around my 10 acres. Security cameras and PIR sensors. All linked to the real world over T-mobile. So many toys, so...
  27. OffGridGuy

    JiKong (JK) (Neey/Hankzor/HelTec/etc) Smart BMS with Active Balancer BT/Can/RS485 (Input Discussion pre-purchase)

    Hi Steve, I ordered both the RS485 and CanBus modules. I was a little surprised that both units have 4 pin connectors, meaning both are meant to plug into the RS485 socket (but only one at a time). My goal was to play with the CanBus interface. As a retired firmware engineer, I'm always...
  28. OffGridGuy

    JiKong (JK) (Neey/Hankzor/HelTec/etc) Smart BMS with Active Balancer BT/Can/RS485 (Input Discussion pre-purchase)

    Howdy, Thanks to this group, I was able to snag one of these excellent BMS's, a few weeks ago. After 3 weeks of operation, connected to an 8S 272Ah battery bank, I have found no surprises. All of the important settings are available and they work as expected. The balance function works as...
  29. OffGridGuy

    Updated Battery setup.

    Howdy, I've tried the real Heltec on some of the Bolt batteries I purchased from BH and I was mildly impressed. I added a voltage monitor and enabled the Heltec only when the pack was at the top of the charge range and it seemed to work. Then saw a YouTube of one of those Heltec balancers...
  30. OffGridGuy

    Updated Battery setup.

    Howdy, Looks like a nice clean setup. I'm not an expert, but I've built up a number of 24v (8s) systems, using the same Battery Hookup packs, and I'm very happy with them. I watched most of each of your two videos, but the one phrase that I did not hear was 'top balance'. All of my packs...
  31. OffGridGuy

    Best gas generator for a backup battery charging?

    Steve S said Thanks for the tip on the remote start kit, I will check into it more. Looks like a solid unit at a reasonable price. The one thing missing in their documentation is the word 'choke'. When using gas, I've never been able to start a EU3000is, without using the Honda's choke...
  32. OffGridGuy

    Best gas generator for a backup battery charging?

    I agree with the Honda generator recommendations. Particularly the Honda Inverter generators, ie EU3000is. With an inverter type of generator, as your load decreases, the generator rpm, fuel consumption, and noise decreases. There is no comparison between a normal generator, running 3600 or...
  33. OffGridGuy

    Heltec (JK) 200A Smart BMS with 2A Active Balance

    Thanks jamiko.... I had checked the AlieExpress site yesterday for an 8S, 2A balance current BMS, and none were shown. After your post, I returned and sure enough, they have added it. Ordered and now the waiting game..... Thanks...
  34. OffGridGuy

    NEWS: New Midnite Solar DIY Series - SCC's & Inverters (great $ too)

    I'm also in western Washington and I've run a pair of Midnite Classic 150's for over 5 years. And will confirm they are rock solid. And there are another 4 Classic 150's installed in our off grid neighborhood. All those have been running for more than 5 years. There are also 4 original Trace...
  35. OffGridGuy

    Battery Hookup has their xiaoxiang 100 amp BMS's in stock

    Howdy, I stopped by Battery Hookup today and noticed their Xiaoxiang 100A BMS's were back in stock. I ordered a pair of 7S BMS's 6 months ago and have had great luck with them. Ordered an 8S today.
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