Only listing firmware files for BMS 3.0 48100 and 48200
Original source: https://www.seplos.com/bms-firmware.html
Firmware 2026-03-17
https://yunpan.cdn.site.joinf.com/5238231383873796/ExRkCyi3Ei.rar
Added inverter communication protocols.
Firmware—20250727
https://yunpan.cdn.site.joinf.com/5238231383873796/ZKfnywQBFB.rar
No description
Firmware—20250627.rar Released 2025-07-02
https://yunpan.cdn.site.joinf.com/5238231383873796/XNTRNEXAjm.rar
1). Complete Growatt 485 Protocol: (Full data read command: 01 03 00 01 00 29 D5 D4) 2). Complete SRNE 485 Protocol: Add cell voltage and temperature parameters. (Read command: 01 03 00 00 00 28 45 D4) 3). Optimize Afore CAN Protocol: Request 0A charging current once any cell voltage reaches 3.55V, while requesting the charging voltage as configured. 4). Optimize Undervoltage Protection LED Behavior: The Red LED now stays solidly lit after undervoltage protection triggers (previously all LEDs turned off).
Firmware-Update – 20250419.rar Released 2025-06-09
https://yunpan.cdn.site.joinf.com/5238231383873796/1749451506219/BMS%203.0%2048100%2048200%20Firmware%20Update–20250419.rar
1. When the cell voltage > 3.42V, charging current will gradually decrease. ---According to the logic of reducing the requested charging current with every 1mV increase in voltage. ---When the cell voltage > 3.420V, charging current starts gradually decrease, at 3.450V, the current drops to 0.5C. 2. When the voltage reaches 3.55V, the requested charging current is 0A. ---At 3.500V, the current drops to 0.2C; at 3.550V, the current drops to 0A. The requested voltage follows the current voltage to enter the float charging state. ---The conditions to resume requesting charging current (0A) and voltage are: Minimum cell voltage < 3.32V, or SOC<96%, or discharge current > 3A for more than 2 minutes. 3. After Over-voltage protection, the requested charging voltage follows the current voltage. 4. Removed SOC blocking logic during charging. ---Previously, the SOC would only reach 100% when charging was stopped due to overvoltage protection. Now, with ampere-hour integration used for SOC calculation, the SOC can reach 100% directly during normal charging. 5. Pylontech protocol V1.3 Upgrade to V2.0 (New added: ID data ) ---Pylontech CAN protocol updated to include 0x35A, 0x372, 0x373, 0x374, 0x375, 0x376, 0x377, and 0x379. 6. Originally 16 packs in parallel communication, now changed to 18 packs in parallel communication. And Firmware version 1.4 changed to 1.5.
Firmware V10 V11 Update (only for BMS 3.0) – 2024.12.21.rar
https://yunpan.cdn.site.joinf.com/5238231383873796/wAQD6mGSXs.rar
1. The communication protocol name pylon changed to PYLON. 2. Newly added TBB communication protocol. 3. The battery SOC setting strategy has been optimized. The specific strategy is as follows 1) Standby mode: voltage>=3.45V*(Number of cells connected in series), Lasts for 15 min, limit SOC to less than 100%. 2) Charging current <3A, voltage>=3.45V*(Number of cells connected in series), Lasts for 30 min, limit SOC to less than 100%. 3) The charging status has not reached the high voltage warning or the total high voltage warning, SOC>=98.5%
BMS (3.0) 48100 48200 Firmware V10 V11 Update (Only Fit To BMS 3.0).rar 2024-03-05
https://yunpan.cdn.site.joinf.com/5238231383873796/nDPxebxHEe.rar
This V10 and V11 firmware, update to fix algorithm of SOC, to make sure it more precise.
BMS 3.0 Firmware-Upgrade-File 20230924.rar Released 2023-09-25
https://yunpan.cdn.site.joinf.com/5238231383873796/XcBKectpiX.rar
No Description