# Chargery BMS24T - Firmware Version **URL:** \ **Category:** GEM Forum\ **Created:** [September 8, 2019, 8:56pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030 "2019-09-08T20:56:23Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [September 8, 2019, 8:56pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/1 "2019-09-08T20:56:24Z")
Any one know how to tell what firmware version is installed on your 24T? I see there are some newer (i think) firmware available for the LCD and the main unit but there are no release dates for the firmware and I can’t find out where in the unit it can be displayed. ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 8, 2019, 9:08pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/2 "2019-09-08T21:08:46Z")
It flashes on when booting up. ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [September 8, 2019, 9:43pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/3 "2019-09-08T21:43:46Z")
Thank you Dave - hope you had a good weekend. ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [September 9, 2019, 6:43am UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/4 "2019-09-09T06:43:43Z")
Where did you buy your BMS -24 from? ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [September 9, 2019, 1:13pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/5 "2019-09-09T13:13:31Z")
I need to type 20 characters so now I can say “David” ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [September 9, 2019, 3:27pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/6 "2019-09-09T15:27:55Z")
David: what does the new firmware do for the BMS 24? ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [September 9, 2019, 3:34pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/7 "2019-09-09T15:34:00Z")
Version History Software Version Description V1.05 Released first time V1.06 Fix press STOP enter into sleep mode, and Beeper & LED warning. V1.07 Support LTO battery, model is BMS24T V1.11 Negative temperature can be measured. V1.12 Add charge protection, Don’t charge under 2℃ V1.13 (Hardware V2.2) Add display module, improve voltage bar graph display, the lowest negative 20℃ can be detected V1.14 for LCD Fix the charge and discharge WH bug V1.15 for LCD SOC can be setup to 0% V1.16 for LCD Start automatically on battery type and cell count setup interface, need not press START button. V1.21 for LCD  Fix a bug when display temperature difference at F.  Fix a bug on adjusting balance start voltage on LiTo battery  Add balance control item in storage status on Program Setup interface —balance in Storage on or off – balance in Charge on or off – balance in Discharge on or off Charge status: charge current displayed over 1A Discharge status: discharge current display under-1A, such as -10A Storage status: current displayed between -1A ~ 1A So current shunt and current sensor wire must be connected to BMS main unit.  Improved SoC of LiTo battery V1.22 for LCD and V1.18 for main unit.  Improved SoC arithmetic  Fix a big when over discharge resume **Version 3 is out but I don’t know if it can be loaded onto older 24T’s or not???** Version History Software Version Description V1.05 Released first time V1.06 Fix press STOP enter into sleep mode, and Beeper & LED warning. V1.07 Support LTO battery, model is BMS24T V1.11 Negative temperature can be measured. V1.12 Add charge protection, Don’t charge under 2℃ V1.13 (Hardware V2.2) Add display module, improve voltage bar graph display, the lowest negative 20℃ can be detected V1.14 for LCD Fix the charge and discharge WH bug V1.15 for LCD SOC can be setup to 0% V1.16 for LCD Start automatically on battery type and cell count setup interface, need not press START button. V1.21 for LCD  Fix a bug when display temperature difference at F.  Fix a bug on adjusting balance start voltage on LiTo battery  Add balance control item in storage status on Program Setup interface —balance in Storage on or off – balance in Charge on or off – balance in Discharge on or off Charge status: charge current displayed over 1A Discharge status: discharge current display under-1A, such as -10A Storage status: current displayed between -1A ~ 1A So current shunt and current sensor wire must be connected to BMS main unit.  Improved SoC of LiTo battery V1.22 for LCD and V1.18 for main unit.  Improved SoC arithmetic  Fix a big when over discharge resume **V3.0 Update hardware and software at the same time. V1.22 version discontinued.** ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [September 9, 2019, 3:45pm UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/8 "2019-09-09T15:45:50Z")
I haven’t looked at the web sit in a while. It lists the revision history. ---
**Author:** ![dynemd](https://avatars.discourse-cdn.com/v4/letter/d/ecd19e/32.png) [@dynemd](https://community.electricforum.com/u/dynemd)\ **Post date:** [September 15, 2019, 4:28am UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/9 "2019-09-15T04:28:29Z")
I sent the question to Jason Wang who is usually pretty quick to respond. 王军荣 \<[jasonwang3a@163.com ---
**Author:** ![dynemd](https://avatars.discourse-cdn.com/v4/letter/d/ecd19e/32.png) [@dynemd](https://community.electricforum.com/u/dynemd)\ **Post date:** [September 15, 2019, 5:12am UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/10 "2019-09-15T05:12:10Z")
This is Jason Wang’s correct email [jasonwang3a@163.com](mailto:jasonwang3a@163.com) ---
**Author:** ![dynemd](https://avatars.discourse-cdn.com/v4/letter/d/ecd19e/32.png) [@dynemd](https://community.electricforum.com/u/dynemd)\ **Post date:** [September 17, 2019, 3:37am UTC](https://community.electricforum.com/t/chargery-bms24t-firmware-version/17030/11 "2019-09-17T03:37:48Z")
Got this reply from Jason Wang on the question of upgrading the firmware on the BMS-24T from 1.22 to 3.0: NO, 1.22 and 3.0 have different hardware, on V3.0 manual, you can find the update information. thanks. Jason Wang