# I have a 403TB1 controller and would like to reprogram the controller **URL:** \ **Category:** Uncategorized\ **Created:** [July 7, 2019, 8:49am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502 "2019-07-07T08:49:36Z")\ **Posts on this page:** 19\ **Page:** 2
**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:** [July 9, 2019, 10:32pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/21 "2019-07-09T22:32:56Z")
What batteries? Is bms warm? I need your address. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 9, 2019, 10:34pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/22 "2019-07-09T22:34:59Z")
2014 Chevy Volt. bms is warm. Not sure if you remember but you have helped me out a lot before. 2408 East Meadow Mist Way St.George, Ut 84790 ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 9, 2019, 10:41pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/23 "2019-07-09T22:41:35Z")
![My%20battery%20layout](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/3/3997f4d1b80405275e0ea4cff01b986d829dbb58.jpeg) I’m not sure if the balance got messed up from my last BMS but it is part of the left side that is high. ---
**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:** [July 9, 2019, 10:43pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/24 "2019-07-09T22:43:34Z")
Yes, but details fade. Bms will take weeks to balance that much. It needs to drain 8 cells. Bms uses power from the bottom 16s keeping them low if not balancing. (lcd off) Charge the first 16 or put a load on the top 8 to help bms catch up… ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 9, 2019, 11:11pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/25 "2019-07-09T23:11:00Z")
Sounds good. Do the settings look good on the BMS? Any sugested changes? Thanks ---
**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:** [July 9, 2019, 11:28pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/26 "2019-07-09T23:28:12Z")
Might set the lcd to lowest setting=“always on” to keep it balancing. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 9, 2019, 11:51pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/27 "2019-07-09T23:51:10Z")
Ok Sounds good. I’ll do that. ---
**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:** [July 10, 2019, 12:03am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/28 "2019-07-10T00:03:51Z")
It may not apply to new versions. At one time, only balanced when lcd on. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 10, 2019, 1:47am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/29 "2019-07-10T01:47:49Z")
I learned something new today. Don’t try to charge a set of batteries with the set of batteries. 🙂 ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 10, 2019, 2:11am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/30 "2019-07-10T02:11:23Z")
Need some advise. What is the best way to drain 8 cells that are wired in parellel by my BMS to another 8 cells that are both in packs of 12 that are wired in parellel? I have a few RC Lipo chargers that can load those cells and drain them to a storage state. I’m thinking remove the BMS and drain them 4 cells at a time. Any sugestions? ---
**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:** [July 10, 2019, 2:31am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/31 "2019-07-10T02:31:29Z")
What ever load you can find. One of my favorite is bi-pin lamps. Clip one across each cell you want to drain. Or up to 3 cells at a time using 12v lamps. No need to remove bms. Use it to monitor process. If it’s simpler, wire 4 large 12v lamps in series across all 8 high cells. 1157 work too. Balance leads should handle 2 amps. ---
**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:** [July 10, 2019, 1:50pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/32 "2019-07-10T13:50:04Z")
I’m testing a charger with a 1p24s volt pack. It was delta-volts was 240mv last night. ![MVC-001F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/1/11ca08d74ec4973c73fb60826e14a495025a4660.jpeg) ---
**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:** [July 10, 2019, 1:55pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/33 "2019-07-10T13:55:42Z")
A little help with cell 24. ![MVC-002F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/5/5e0eb34c676f9ab6ccb8f8b3c4de8ee7b9efba83.jpeg) ![MVC-003F](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/d/d07b124a0ab8eaf7635d2de70177961fdb786dbb.jpeg) ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 12, 2019, 7:26pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/34 "2019-07-12T19:26:47Z")
Thanks for the idea with the lights. I was way over thinking it. It did take a couple of days but I got them much closer. What is a good mv difference to aim for? ![IMG_6038](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/4/4c9abbd8afa36ac943ad5a7e1f81c4b632e86f22.jpeg) ![IMG_6040](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/60a1452569fef0e79d07c9fb415927e9f5d47e10.jpeg) ---
**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:** [July 12, 2019, 10:26pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/35 "2019-07-12T22:26:55Z")
20mv is good. But it makes little difference. If battery fully charges with no cell over 4.15, call it good. The one I pictured the other day is still balancing 24/7. 58mv today. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 13, 2019, 8:56pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/36 "2019-07-13T20:56:47Z")
I recieved the programmer and it looks like a little bolt hitched a ride. Was this on accident or on purpose. Thanks ---
**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:** [July 13, 2019, 9:03pm UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/37 "2019-07-13T21:03:40Z")
Good question. Kind of a mess here. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 14, 2019, 6:58am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/38 "2019-07-14T06:58:17Z")
Sounds like my office .I have been reading up on the programming and this is what I have. 2008 2 seater 7hp motor. Are these all the same? 21" tires and 100volt battery system. I have changed 21 to 255 but haven’t been able to try it out yet. Any other changes you guys would suggest. I want it to last at least a few years 🙂 Mainly flat area but would like to not feel like a target in the forty miles an hour zones. ---
**Author:** ![BadBrad](https://avatars.discourse-cdn.com/v4/letter/b/e47774/32.png) [@BadBrad](https://community.electricforum.com/u/BadBrad)\ **Post date:** [July 14, 2019, 7:17am UTC](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502/39 "2019-07-14T07:17:11Z")
Looks like my 7hp is only 4100 RPM Does it overheat when you get over the 4100 RPM. I noticed the GEM that this got taken out of had a shroud that went around the motor. It looked like it was set up to get more air to it. Thanks again you guys for your help. [Previous page](https://community.electricforum.com/t/i-have-a-403tb1-controller-and-would-like-to-reprogram-the-controller/16502.md?page=1)