SG200 Downloadable Upgrade Information

ALL firmware upgrades are built-in to the APP download from either the Google Play or Apple Store. If you install the latest APP from one of those stores, you have the latest upgrade including new battery chemistries.

Latest Upgrade: Version App Version 2.1.2(206) 6/24/2022

  • Display update (SG2-0200) to fix issue with screen going black after button pushed following a power reset.
  • Gateway update (SG200-300) fix for the intermittent SmartLink communications which can result in a lockup condition.
  • Improved “RELION” chemistry which is a firmware change to all Smart Shunt varieties (SG200, SG230,SG235, or SG240)
  • Changed fault level for current to 650A in all chemistries

We have introduced a level of security to the network. When you first connect with the new app, you will see list of gateways available. You will likely get a message that the gateway is locked when you click on the gateway. To associate the APP with the gateway, pull the SG200 fuse (or all SmartShunt fuses if you have more than one) and then replace. From that point you have five minutes to reconnect via the APP and re-select the gateway. This should will keep malicious or inadvertent connections from another device, and also allow a user with more than one installation within range to securely connect to those devices.

IOS – APPLE USERS: You MUST reboot your phone after updating the SG2-0300 Bluetooth Gateway. The phone stores cached information that is incompatible after the upgrade, and rebooting is the only way to clear this data.

A note about upgrading chemistries: When you update the SmartShunt firmware, the process downloads copies of the chemistries and then installs them into the Smartshunt at the end of the upgrade process. This happens even if there is no actual changes made to the chemistries. If the chemistry you are using is shown in the “Chemistries Upgraded” column of the table, the you must re-select the chemistry from the Device Settings to load the new chemistry. At this point, the learning will restart on the system.

SoH ibex combo2With the introduction of the Bluetooth Gateway and the corresponding Balmar App, we have introduced the ability to upgrade the firmware on SmartLink products. The files needed to perform the upgrades are included in the App release, so if you want to ensure you are on the latest versions of your SmartLink products, just make sure your app is up to date. If your phone or tablet is set to update the app whenever a new version is available, great. If not, please check for updates often in either the Apple store or the Google Play store.

A quickstart guide is included in the SG2-0300 Bluetooth Gateway packaging, you can also see it here: SG2-0300 Quickstart Guide ALWAYS UPGRADE THE BLUETOOTH GATEWAY FIRST, IF IT HAS AN UPGRADE AVAILABLE.

App REV Smart Shunt REV Display REV Gateway REV App Revision Information Device Firmware Changes Chemistries Changed Aprox Release Date

2.1.3(206) Note, this shows in the Apple store as 2.1.2, due to an issue with that store. It shows the correct 2.1.3 version in the App.

Sg2-0100 3.11 (Unchanged)

SG2-0130 (SG230/SG235) 1.09 (Unchanged)

SG2-0240 1.09 (Unchanged)

3.15 4.17 None
Color Display: Bug fix that caused a blank screen in certain circumstances.
Bluetooth Gateway: Fix for a intermittent SmartLink communications issue which can result in a lockup condition.

Relion: Improves how fast batteries are learned. No need to reapply the chemistry if the batteries have already been cycled. Increased Current fault limit to 650A

All other chemistries: Increased Current fault limit to 650A




SG2-0100 3.11 (Unchanged)

SG2-0240 1.09

SG2-0130 (SG230/SG235) 1.09

3.12 4.14 Toggle Faults on/off  from Display
Color Display can now toggle between faults displaying and faults not displaying.
CANBus SmartShunts now can be upgraded.




SG2-0100 3.11

SG2-0240 1.06

SG2-0230 1.06

3.12 4.13 Multimaster, New Lithium Chemistry, Canbus SmartShunt Support
App and Color display can now be used simultaneously
SG230 and SG240 (CAN bus) compatibility.
Faults now default to OFF. They can be turned on via the Color Display
Fixed a bug in the naming of the MC-618 when more than one regulator is on the network

Improved Initial SoH accuracy for LiFeP04 (lithium) battery chemistry. (MUST re-apply the chemistry)

Relion LiFeP04 Chemistry added.



SG2-0100 2.97



3.0 4.06 Secure Negotiations (See above) New Icons, Rename gateway, MC-618 support Gateway update to allow for Secure Negotiations, gateway renaming. Supports MC-618 regulator ALL: fixes SoC error when batteries are kept on constant float over extended periods (Typically a shore power charger) SoH improvements 4/20/2021
1.5.1[93] 2.91 2.91 2.92 None 1. Fixed miscalculation of Time Remaining when discharge was less than C/20. 2. Corrected network issue causing APP to lose realtime data after many hours. 3. Improved SoC accuracy when battery is fully charged with very low discharge rate (below 1 amp) None 5/12/2020
1.5[86] 2.79 2.79 2.80 1. Upgrade process up to 8x faster. 2. Demo mode (With static data). 3. Redesign of the interface. 4. Reduced the potential for corrupted data if upgrade process interrupted. 1. Numerous network stability and reliability improvements. 2. Standardized all time remaining “Until” percentages to 50% during discharge, except for LiFePO4, at 20%. ALL: 1. Improved SoC during High-rate discharge over .3C. 2. Faster/more accurate learning for larger battery banks LiFePO4 only: Improved SoC accuracy when idle 3/27/2020
1.0.4[57] 2.61 2.61 2.7 1. Ability to rename devices, visible on both the App and the Color Display. 2. Improved display of the Firmware upgrade process using two progress bars 3. The app now prohibits device screen lock while an upgrade is in progress. 1. When multiple devices of the same type are on the network and they have different names, they can now be updated in turn while remaining in-place on the SmartLink network. 2. Preventing a situation where if the chemistry upgrade process were interrupted, device memory could become corrupted. 3. Prevents false voltage faults when upgrading firmware with 24V & 48V banks. 4. Removed voltage faults on Auxiliary voltage leads. 5. Corrected errors in Time Remaining calculations. None 11/15/2019
1.03 [50] 2.58 2.57 2.56   1. Corrects Factory Calibration restoration functions 2. Correct Alert function while APP IS CONNECTED screen is showing on the Color DIsplay. None 9/20/19
1.02 [49] 2.57 2.56 2.56   1.Prevents False Alerts and Faults after firmware upgrade 2. Fix that prevents bogus alerts and faults from being issued from SmartShunt after firmware upgrade None 9/18/19
1.01 [48] 2.56 2.56 2.56   1. FIx Compatability issues None 9/11/19
1.00 [47] 2.55 2.55 2.56   1. Improved SoH estimation algorithm, Fixes Peukert Factor at low rate discharge 2. Contains numerous changes including better error detection and correction, fixes to power initialization, SG200 Quiet mode, and firmware upgrade capabilities.” None 8/29/19
  B.04 2     Initial Release