Fix BullTron GUI telemetry and MOS writes

README.md

@@ -146,8 +146,8 @@ at least one advertisement from that peripheral in the current session.
 The GUI shows:
 
 - live pack voltage, current, discharge watts, SOC, remaining Ah, cell max/min,
-  imbalance, cell count, cycle count, charge MOS, discharge MOS, and computed
-  time-to-empty/time-to-full
+  imbalance, cell count, cycle count, charge/discharge MOS, separate
+  charge/discharge current and watts, and computed time-to-empty/time-to-full
 - alarm/status words decoded into readable alarm names where known
 - system/settings values such as the control PIN, firmware/version text,
   product info, battery code/SN, production-date raw value, and inferred battery
@@ -156,9 +156,9 @@ The GUI shows:
 
 The settings tab has MOS on/off controls, but writes are deliberately guarded:
 you must enter the BMS PIN, tick `Enable MOS writes`, and confirm each write.
-The default write registers are the observed live MOS status registers
-`0x0035` and `0x0036`; keep them editable until those write registers are
-verified on your exact hardware/firmware.
+The default write registers mirror the BullTron system screen: `0x00A5` for
+charge MOS and `0x00A6` for discharge MOS. The live MOS status still comes from
+read-only telemetry registers `0x0035` and `0x0036`.
 
 Scan results are sorted so likely BullTron devices appear first. The Android app
 accepts scanned devices whose BLE name contains `DL` or `B35`, or whose legacy