Overkill solar bms bluetooth password

Overkill solar bms bluetooth password. BMS For 6 cell, 24v volt Lithium-ion Tesla battery modules. It depends on what BMS you have . 1+3. 6 External Switch 16 2. Note: the password/PIN function has been completely bypassed by this release. We are also coming out with our own new android app soon that will solve this problem. I tried disconnecting and reconnecting and that did not work. Download the Overkill BMS instruction PDF, on page 29 in the Q/A section you may have inadvertently hit the mosfet lock. Please help me understand. I was clicking on something on the app and the Charging arrows flickered for about a second. Is there a reason there are (3) wires for the blue (B-) and black (C-) instead of typically (2) that I see on some other BMS's? I assume all (3) are needed. 67v. When I try to connect via Bluetooth, the message [Waiting for data] is displayed and the connection is not completed. Is this the preferred approach or do we want to balance regardless? Apr 30, 2020 · Tried to keep the battery setup in my van simple with just the cells, BMS, and electronic bits but am really dissatisfied with monitoring the battery through the bluetooth from the BMS. To find it again, you must switch Apr 13, 2020 · Mar 5, 2021. Name. 14 Select options; Overkill Solar. The BMS only says the password is incorrect. 7 Connectivity 16 2. 2, the latest from Google Play) and seeing a limited set of params. He also has some YouTube videos on upgrading the 10g wire to 8g. Dec 31, 2023 · I have now managed to get the overkill app to find my bms in devices by reinstalling the app and completely turning off my Bluetooth then starting it through prompts by the app. #9. Low Temperature Charging cutoff at -1c (2 probes) Remote shutoff switch. This will be a full cycle and the BMS will report the SOC reasonably well, and the reported capacity will be quite accurate. Got myself two LiFePO4 batts special-ordered (12V@29Ah and 12V@11Ah) with a Bluetooth-enabled BMS in each. This adapter board comes with clearly labeled universal screw terminals for connection to any BMS. 3 volts. Jan 22, 2024. The BMS is manufactured in China. master. Please someone tell me how to reset the bluetooth password. Changed via bluetooth to 100% if needed. But, you might have to get something like the Victron Smart Shunt that would be totally independent. HOWEVER no, it is not capable of doing an initial balance on new cells. 1 P ro t e ct i o n P a ra me t e rs 1 8 3. Feb 20, 2021 · Typically 13. M10 Stainless steel (NOT Aluminum) threaded stud terminals. They also said that the Victron will always be more accurate than the BMS. The listed values (Battery at rest) for capacity also seem Feb 1, 2024 · May 12, 2024. We have confirmed that the Bluetooth module and PC module are working properly. g001ebb9). #1. I even tried connecting with an iOS device with no luck. Solar,110vac charger, and alternator charges all AGM's. Buy 2+ 10% off. So long as you got a 4S version for your 12v battery you have nothing to worry about. I have no problem connecting to each batt via the App (User v. 262in. I configured the settings as listed in the Overkill BMS manual. When the switch is closed (or a jumper is in the place of the 2-pin connector), the BMS will operate. It looks to be well built. Unplug the sense lead harness, measure from the black conductor main negative across all leads one at a time, and verify voltage rises 3. The victron stuff will start cutting out 30 feet away in the same room. Jan 25, 2021 · IIRC, I believe you purchased essentially the same BMS, or same line of BMS as the previous one you had ordered (JBD smart BMS). I was exaggerating, the 48v battery sets cost $1400 for a 28kwh battery. BMS For 4 cell, 12v volt Lithium-iron-phosphate DIY batteries. Yes, the BMS has a built-in balancing function. I have also used an app called "SmartBMSUtility" which is free and includes the ability to change the BMS parameters. Overkill Solar's website is much more straightforward, only 3 BMS options so its hard to mess up. Can someone point me to a product or This morning I noticed the bluetooth module was not lit up. Industrial LiFePo4 Cell – 100ah 3. Cell under volts and release seem very conservative, (too high). I hit the battery with a volt meter and it's 13 v and each cell is over 3. #3. 71 out of 5. ) In stock in Florida, Ships within 2 Days. Make sure the RS485 adaptor is not attached when you're trying to use bluetooth and vice-versa. Jul 23, 2021 · 8,957. iPhone App: Overkill Solar Mobile App; Android App: Overkill Solar Mobile App Sep 5, 2022 · Hello all! Noob here. When no current is going in our out of the batteries the BMS updates nearly real time. lifepo4. 3 Arduino LCD Display 18 3. BMS is recognized, but it seems that data cannot be acquired. This kit includes a BMS and Interface board- You supply your own Tesla battery module. 0V. Dec 26, 2020 · Belmont, NC. So to reboot remotely, we need to remove power from both the AC and DC ports. 5 Temperature Sensor 15 2. ( 3 customer reviews) $ 142. I have old BYD 24v batteries that I don't want to overcharge above 3. Rated 4. 120 amp continuous charge or discharge current. I can start the Chinese language app 1. Jan 15, 2022 · Jan 15, 2022. I found and image of the JBD/Overkill without heatsink: (passive balancing bleed resistors circled in red) Click to expand ESP32 version of JBD BMS display with Bluetooth connection. 2V each pin I hope the wires are all correct, it appears the BMS if faulty. Hello again, Now that I have my Overkill Solar BMS app working, which setting do I change for the battery to start charging. ( 1 customer review) $ 139. The overkill app can no longer connect. Jul 6, 2020 · You can easily buy a VNA (vector network analyzer) to test your antenna designs, however, you can also just use some simple formulas. then i charged them all at once and it worked fine. I'm planning to build a custom device to monitor the six BMS's via their UARTs and generate NMEA 2000 messages so that the entire bank can be monitored and controlled on my boat. About cell balancing. Mar 31, 2022 · Finally got the USB to RS485 adapter. The JBD Smart BMS (JBD-SP04S020) sold by Overkill Solar and others, is one of the more popular FET based BMS on this forum (along with the Daly BMS, and Any BMS). ohmboy. Spare Bluetooth communication module. ohmboy; May 12, 2024; BMS (Battery Managment Systems) Replies 8 Views 250. I can see the status page but no changes. some of them might accommodate adding a Bluetooth module. If the battery is being charged, I can't connect the Android app at all. I purchased (2) 100Amp 24V 8S BMS from Overkill solar in January of 2021. Xiaoxiang BMS connectable. Steve was kind enough to promise to send me some extra cables to plug into the 4-pin UART header (same connection used by the Bluetooth and USB dongles). Dec 29, 2022. It supports bluetooth connection to the BMS, and can alarm prior to BMS disconnect per ABYC recommendation. 1026) I find a Monitoring Mode and a Driving Mode. gonna add another battery pack for a set of 4. 2v 280ah batteries. The Overkill Solar (OKS) BMS (4S 120A) is a badged version of the JBD BMS you can find on Aliexpress direct from the JDB store. Then charge until the BMS's high voltage disconnect kicks in. I tried anothe Android phone, the same happened there. 4s BMS 120a LifePo4 with M6 Threaded Terminals. When I swapped in the Bluetooth unit for the other BMS, which worked OK, it was the same story. If you are concerned about unauthorized access to your BMS via Bluetooth, you should unplug the Bluetooth module when it’s not in use. upnorthandpersonal said: One obvious difference is that the JK/Heltec has active balancing and the JBD/Overkill does not. 1 Bluetooth Module 16 2. 1. I am running an 8s overkill bms with xiaoxiang:v3. Jun 20, 2020 · Picture of setup attached. Hoping the new Xiaoxiang's new hardware based passcode/password feature hasn't locked me out of the JBD/Overkill desktop Dec 14, 2020 · I'm going with pretty much stock settings for the BMS (Pack Undervoltage: 10V, Undervoltage 2. This 'megathread' is focused on this BMS (which was first sold in the US by Battery Hookup now sold by Overkill Solar, and also Jan 10, 2021 · With just a basic system, I think you could use the BMS as a pretty reliable SOC indicator. Make sure location services are turned on when you are trying to use the app, it absolutely will not work without it. These are really great monitors. Comes with M6 Threaded Terminals soldered to the board as shown. The start balancing voltage of 3. So it is not a fault with the the Bluetooth unit. I also asked about the specific software version you're using as I've had trouble with older versions and my own JBD May 12, 2020 · It make take 10 second or so to get an update via Bluetooth. A4:C1:38:1B:7C:80 signal:Strong-47. If you touch it, it engages the “mosfet. octal_ip said: Two things that I'd check: some of these JBD BMS don't support more than one output at a time. ( 2 customer reviews) $ 158. JK BMS not charging. If the configuration option is enabled within the BMS, discharging will be disabled when the switch contact is. How does the app distinguish between the two JBD BMS: I set the bluetooth password in the Xiaoxiang app and now I can't connect with OverKill app January 17, 2022. 00. 8s BMS 100a LifePo4 with M6 Threaded Terminals. #4. Location. 1. (Each BMS order usually includes a bluetooth module. The SOC seems to be all over the place and a few other annoyances. After that the Bluetooth powered up again, but with in a few minutes it quit again and will not be recognized. 9Met (app is displayed). Sep 17, 2020 · Sep 17, 2020. Bluetooth Module is included, Balance wires are included, USB module is an additional I’m reviewing here the configuration I have set in the Overkill Solar BMS 48/100. Overkill Solar LLC 3673 Exchange Ave, Suite 3 Naples, FL 34104. The balancer works by connecting a tiny bleed resistor to the cells with the highest voltage, and the excess energy in those cells turns into waste heat. Oct 14, 2021 · Overkill Solar. 36v. At the same time my Outback Hub and ethernet connections fried so needed a new monitoring system. It wont allow current to flow out, or charge to go in. History. Suppose there is a malicious person who sees the bluethoot connection of your BMS, and changes all the prameters with the application . Is anyone using other apps for the JBD/Overkill BMS's? I'm using iOS and the 4S 150A version of the JBD (two built-in heater pigtails! Whoot!) Jun 27, 2022 · JBD 100A BMS 4s LiFePO4 Bluetooth - JBD-SP04S028-L4S-100A » LIFEPO4 Australia SHOP Series connection : supports 4 x 4S Battery packs connected in series - 80V MOSFET www. Overkill showed no loss at all. Hi Guys. Overkill BMS set to charge to 80% normally. It can monitor voltage of the cells, total capacity, charging and discharging current, and switch the charging and discharging ports on or off. bluetooth is 2483Mhz so thats get you an antenna length of about 2. the voltage deviation is higher than voltage deviation set. In the App Settings of the Android app ( 3. Victron solar controller "load" output connected to lithium and setting to allow charging only after agm's are topped off. I contacted customer support and received some ideas, none of which worked to fix my issue. 54. I couldn't find a passcode/password window in the Overkill desktop app (Overkill Solar BMS Tools v2. When I try to read the BMS again, password is incorrect. 9-20210524), but no joy. Jul 31, 2020 · I'm finishing up my battery pack build and purchased an Overkill Solar 4s12a BMS (with the bluetooth feature). 0 volts are considered suitable for low stress charging. If I disconnect the solar panels (or it's dark out) the app connects extremely fast. For sale on OverkillSolar. Last commit. com are free to use under the condition that the Overkill Solar name and/or logo remains visible if applicable, as well as the terms of the Creative Commons Attribution-ShareAlike 4. Feb 2, 2021 · 2,729. Apr 5, 2021 · I tried entering this same passcode/password in the JBD desktop app (JBD Tools -V2. iPhone App: Overkill Solar Mobile App; Android App: Overkill Solar Mobile App The BMS is manufactured in China. Overkill Solar official manual for the: JBD-SP04S020 (4S, 120A) JBD-SP10S009 (8S, 100A) I've only gave it a quick glance, but it looks very well put together and detailed! Well beyond the level of quality and clarity of virtually every other commodity BMS. desktop software for setting BMS parameters with a PC and a TTL com port (AKA the USB module) OverkillSolar opensource version Jan 26, 2024 · vs. Aug 15, 2021. 0 International Public License. With freight I paid $89 each for 3. Apr 28, 2021 · Basically this is how the two modes work: 1. Jun 24, 2020 · Settings - BMS hardware Parameter - CurrentSensor = ~200. The XiaoxiangBMS app seems to be popular, mostly in the paid version. Tesla BMS kit – Plug-and-Play Retrofit Kit $ 198. Between this Overkill BMS manual and my battery cell data sheet, I wish more data was given for the BMS manual recommended app programming. The module will show in the right pane. Upgraded 100A BMS has anti-overcharge, over-discharge, overcurrent, and short circuit, allowing the lifepo4 battery 100ah to have a strong and stable performance in each cycle. May 9, 2024 · Now I can only access my BMS through the xiaoxiang app. BMS For 8 cell, 24v volt Lithium-iron-phosphate DIY batteries. Features: - change bluetooth advertising name - apps. This is a slow process. I've tried various apps and reconnected the BMS and battery This is a repository of all software and documentation related to the "Overkill Solar" BMS. Standard Charge current: 50A (0. May 12, 2024. The Discharge indicator was working when I had something plugged in. Jan 22, 2024 · Indiana. Aug 27, 2020. Overkill-Solar product link BMS Manual (PDF, English) Bluetooth Mobile App (Overkill Dec 28, 2022 · Problem is, if you remove AC power from the power supply (which is built-in to the unit), it just switches over to use its 12VDC backup battery. #2. I dont understand why this is happening. But the BMS is not letting any power through and does not connect via bluetooth. 6v for a 4 cell 12v DIY battery which is >13v when bypassing the daly bms. So it is probably not an app problem. Source project has a limited visibility. Which version of the bluetooth app should I use, Will's or Overkill's? And if Will's, where do I get it? 2. 100 amp continuous charge or discharge current. I have my Nominal Capacity set to 206AH and Cycle Capacity set to 164. Quattrohead said: The blue LED comes on when there is an active Bluetooth connection. . 1 USB Interface 17 2. So I also purchased Thornwave battery monitors - one for the inverter and the other for the charge controller along with the bms. $ 166. I don't use the bluetooth module on my Overkill, but from what I saw in the Overkill manual password protection is only possible on the app-side and only the iPhone version at that. If security is a concern, I'd add a switch between the BMS and the BT module to disable the BT module when you are not using it. you have to connect the BMS to a PC (connect a serial USB converter to the port for the Bluetooth) and reset the password with the PC program for the BMS. all my victron stuff. 5C). 6 v per 12v pack), is more typical. " Apr 12, 2024 · Overkill solar BMS bluetooth not working. 2. 1 Cell over voltage 18 3. I tried disconnecting the battery from the BMS and removing the main harness. Use 4 cells plus a BMS to build a 12v nominal battery pack. 1015 app. Aside from risks I may take to purchase from Aliexpress and the unconditional warranty offered by OKS was there anything else modified in hardware or firmware by OKS that would set the two BMS versions i have paralleled 3 24v overkill solar BMS together with 3 sets of batteries @100AH and they balanced each other while i watched using blue tooth monitors. Haven’t tried usb PC connection yet. com. PDF. To view or change Parameters, there are 3 ways to connect to the BMS. the stats on the BMS built into my super-cheap ($150 12V100A ), Amazon sourced "educational" Fiune brand battery: 100A BMS with low temperature protection. Overkill-Solar BMS for LiFePO4 Batteries 12V, 24V and 48V BMS with good features and great quality, Bluetooth with amazing app, temperature control. 4 Positive Load Connection 15 2. Mar 19, 2022 · Recently starting building two 280Ah batteries using two Overkill 120A BMS' with bluetooth. It will tell you the status of your connection at the bottom of the window. All images hosted on OverkillSolar. very cool. It must be the Overkill Solar BMS that does not communicate properly. Assuming my understanding of these settings is correct, my remaining question is about the parameter "Single Cut-Off Voltage" which I left at its stock setting of 3. My Overkill Solar BMS bluetooth connection has started acting weird. take a look at the FAQ in the attached Overkill Solar BMS manual as there is a section on Blue Tooth connection issues. Also contact me at Support@OverkillSolar. apple. #6. The BMS works from 50+ feet and through walls, etc. Charging of 12v lithium is done via 110vac charger, switched on as needed. An example is the self discharge of the lithium battery is 3% per month, but the app only lists self discharge%. K. Continuous Discharge current: 200A (2C). 45 seems somewhat high as do the capacity settings, 3. The seller Overkill Solar has great customer service and will respond very quickly to your questions. In Windows 10 you and type "blue" in the search box and then choose Bluetooth and other devices. Overkill Solar iOS App allows users to connect with the Overkill Solar Battery Management System (BMS). iPhone App: Overkill Solar Mobile App; Android App: Overkill Solar Mobile App Dec 27, 2022 · 22. Apr 19, 2022. 4. Main metric I use to prove the quality of this unit is the lack of voltage drop across BMS when checking total battery voltage. 34. overkill-solar-bms-tools. All 3 applications are free. I don't see or at least I don't know Dec 30, 2020 · May 8, 2021. Aug 5, 2020 · 146. Voltage from +battery to C- on BMS is 8. Forked from BMS Tools / BMS Tools. Bluetooth works great. The voltage on the battery terminals is 13. I have searched the forum and it appears I am in the minority who has a password issue with the app I downloaded for my Daly 200amp Smart BMS. The Apps allow you to monitor SOC (state of charge), Current, Voltage, cell balance, temperature, and more. Features: - change bluetooth advertising name - unl… Jan 18, 2021 · Hey everyone, I have a quick question about balancing with the Overkill 4S BMS. There’s a setting to only balance while charging that is enabled OEM. But that prompts a couple of questions, to wit: 1. 2v – 200 Amp Discharge Rating. 0A (Not sure if this is correct but my SOC seems accurate now) View attachment 21577 View attachment 21579. FS New BMS JBD Lifepo4 Feb 1, 2021 · May 12, 2021. Nov 10, 2023 · The BMS does not have a password function, but the app still expects it to be there. I can swap Bluetooth modules from BMS to BMS and the one that does not work just will not be recognized. 00 Select options; Overkill Solar. BMS Parameters 18 3 . 72v May 29, 2021 · JBD BMS: I set the bluetooth password in the Xiaoxiang app and now I can't connect with OverKill app Apr 25, 2021 · But finally I bought an Overkill/JBD bms. So you got yourself a battery management system like a Radio b, overkill, or any other JBD or Jiabaida based BMS and you want to learn about the application? Sep 17, 2020 · A lot of good info on the BMS, but wish much more was covered about app settings. But the app does not start (is not displayed) I have activated location sharing. On the BT range, I see dramatically better range from the BMS's vs. I tried setting the password to 123456 and 000000 but no luck. 4v and it was still accepting high charge current. Dec 14, 2019 · New Member. au 2 work bms units connect , one does not. 2 Cell under voltage 19 Jul 10, 2020 · The Overkill will $140 x 2 = $280. B. Bluetooth works. Can be ordered with crimped ring lugs as per your needs. On my new JBD 4S 200A BMS, the app xiaoxiang3. Dec 14, 2020 · I'm going with pretty much stock settings for the BMS (Pack Undervoltage: 10V, Undervoltage 2. Gazoo said: Discharge the battery until the BMS's low voltage disconnect kicks in. 8 or 14. Feb 1, 2024 · Out West. The CommPort button appears to be for RS-232. 3 Add BMS 15 2. the typical ham radio operator will use the 468/freq in Mhz to get the length in feet for a half wave antenna. It contains: The complete BMS user's manual. 1026 (build 5) will not launch. ESP32 version of JBD BMS display with Bluetooth connection. Is there a way to backup the configuration parameters? I would like to save the defaults before I start making changes. It's an Android thing not an app thing. 45 or go below 3. Mar 24, 2024 · Apr 17, 2024. A got some sun this weekend, and was able to nearly charge the battery. It was really sudden. Find file. We have 1 Overkill Solar BMS Series manual available for free PDF download: Instruction Manual Overkill Solar BMS Series Instruction Manual (68 pages) Brand: Overkill Solar | Category: Control Unit | Size: 6. As was pointed out, changing any of the parameters will throw off the SOC and coulomb counting and the battery must be fully cycled in order to get accurate readings. $1000 seemed like a high fraction for the BMS. Works with many models of JBD or Xiaoxang BMSs. These passwords don't work so I can't make changes to the "parameters". 8 AH. If you are concerned about unauthorized access to your BMS via Bluetooth, you should unplug the Bluetooth module when it’s not in use This board replaces the DAQ board on used Tesla Model S/X Battery Modules. 54 Select options. West of the rockies. The BMS reached 100%, but the voltage per cell was still 3. Voltage from +battery to B- on BMS is 13. The Overkill Solar BMS is a JBD BMS. Is there a way to enable discharge and/or charge paths from the app? ‎Overkill Solar iOS App allows users to connect with the Overkill Solar Battery Management System (BMS). It simplifies the task of connecting any BMS to the Tesla battery module. I have a 150amp JBD BMS on my DIY 4S 12v 302ah battery. 7. Rated 5. Oct 3, 2021. Another item to try would be The Overkill Solar BMS software. your cells are at a higher voltage than balancing voltage set. After you start the app click on English and then click start. 3. ohmboy; May 12, 2024; BMS (Battery Managment Systems) Replies 8 Views 245. Features: - change bluetooth advertising name - 16s BMS 100a for LifePo4 with 12″ 8ga Wires. It is not possible with the smartphone app !!! Problem: Bluethoot password/PIN at BMS login. The Overkill PC app says it is resetting the password. 0. 00 out of 5 based on 2 customer ratings. 8s BMS 80a LifePo4 with M5 Threaded Terminals (clearance) $ 97. software lock” without confirmation. S. Low Temperature Charging cutoff at -1c (2 Nov 20, 2022 · Overkill Solar iOS App allows users to connect with the Overkill Solar Battery Management System (BMS). My vendor tells me the BMSs are 4s@30A but alleges "industrial secret" applies so he Jul 13, 2020 · 5,108. This is a BMS monitor for JBD and Overkill Solar BMS. open. I can't find any protection for the bluethoot connection to the BMS JBD. 00 out of 5 based on 1 customer rating. Also you need to decide what you want your SOC parameters to be. Jun 19, 2021. Local (US) customer service and extended warranty. 40 volts per cell (13. The bluetooth module does light up for a second when I do this. Jan 17, 2021 · The BMS is good enough for me and comparing the voltage to the ah's used I believe it is fairly accurate. I'm still pretty sure this is a software and not a hardware issue and I'm reluctant to give up without a firmware reload. 00 out of 5 based on 3 customer ratings. I am able to connect to the Bluetooth app on IOS and i can see all the cells register. it went across all batteries. Jun 9, 2020 · Overkill solar BMS bluetooth not working. However when solar power is generating the BMS IOS app shows that the battery is discharging and the voltage is going up, however the amp hour rating is reducing. Yes, turned on Location on phone. If I disconnect the panels and launch the app, I can then reconnect the panels and the app stays working. It will send the blank PIN (000000) and get a negative response from the BMS, and the app gets stuck in this loop. #7. These settings are the same as for the XiaoXiang app but are being displayed in a better structure and overview in the Overkill Solar App. This has been resolved in the iOS app. Last edited: Aug 29, 2020. The Victron was showing about 85% at that time. Comes with 24 inch long 8ga wires soldered to the board as shown. 4s BMS 120a LifePo4 with 24″ 8ga Wires. Low Temperature Charging cutoff at -1c. Apr 19, 2020 · Assuming disconnecting & reconnecting the BMS leads plug & the blue tooth module have already been tried (if not try). Nov 17, 2022 · It also automatically unlocks password protected BMS firmware, and will resolve any issues with lost or incorrect BMS passwords. This is a great asset for the community, one The BMS is manufactured in China. The daly bms read 9. 5V). I put them into service the summer of 2021 and they worked flawlessly until very recently where I started to have issues with one of the BMS. Feb 26, 2021 · Battery voltage is 13. I have tried 123456, 000000, 111111, 654321 and 696969 (idk just being thorough . If you have both "balancing" and "charge balancing" enabled, the BMS will only start balancing when all three conditions apply: A. The BMS would easily allow us to do this by just turning off "discharge. Then it disappears. 23 MB Dec 8, 2020 · An optional external switch can be wired to the BMS via the included 2-pin pigtail (JST-XH, red/black wires). It says: "Avoid pressing the giant padlock on the Android app main screen. Example of a complete 8 cell battery with BMS: Click here for detailed assembly instructions for this battery. Overview Reviews (4) History. ok or xv gw yv xo em wy eq yu