diff --git a/eive_tmtc/tmtc/power/bpx_batt.py b/eive_tmtc/tmtc/power/bpx_batt.py
index b82d377..f30a662 100644
--- a/eive_tmtc/tmtc/power/bpx_batt.py
+++ b/eive_tmtc/tmtc/power/bpx_batt.py
@@ -46,6 +46,8 @@ class BpxOpCode:
     ON = ["on"]
     RST_CFG = "reset_cfg"
     SET_CFG = "set_cfg"
+    MAN_HEATER_ON = "man_heater_on"
+    MAN_HEATER_OFF = "man_heater_off"
     RST_BOOT_CNT = ["1", "rst_boot_cnt"]
     REQUEST_CFG = ["2", "cfg"]
     REQUEST_CFG_HK = ["3", "cfg_hk"]
@@ -61,6 +63,8 @@ def add_bpx_cmd_definitions(defs: TmtcDefinitionWrapper):
     oce.add(keys=BpxOpCode.RST_BOOT_CNT, info="Reset Boot Count")
     oce.add(keys=BpxOpCode.RST_CFG, info="Reset Config")
     oce.add(keys=BpxOpCode.SET_CFG, info="Set BPX configuration")
+    oce.add(keys=BpxOpCode.MAN_HEATER_ON, info="Manual heater on")
+    oce.add(keys=BpxOpCode.MAN_HEATER_OFF, info="Manual heater off")
     oce.add(keys=BpxOpCode.REQUEST_CFG, info="Request Configuration Struct (Step 1)")
     oce.add(
         keys=BpxOpCode.REQUEST_CFG_HK, info="Request Configuration Struct HK (Step 2)"
@@ -74,7 +78,7 @@ def add_bpx_cmd_definitions(defs: TmtcDefinitionWrapper):
 
 
 @service_provider(CustomServiceList.BPX_BATTERY.value)
-def pack_bpx_commands(p: ServiceProviderParams):
+def pack_bpx_commands(p: ServiceProviderParams):  # noqa C901: Complexity is okay here.
     op_code = p.op_code
     q = p.queue_helper
     if op_code in BpxOpCode.HK:
@@ -147,6 +151,25 @@ def pack_bpx_commands(p: ServiceProviderParams):
         q.add_pus_tc(
             create_action_cmd(object_id=BPX_HANDLER_ID, action_id=BpxActionId.REBOOT)
         )
+    if op_code == BpxOpCode.MAN_HEATER_ON:
+        q.add_log_cmd("BPX manual heater on with seconds burntime")
+        burn_time = int(input("BPX heater burn time in seconds [1-65535]: "))
+        if burn_time < 1 or burn_time > 65535:
+            raise ValueError("Invalid burntime, smaller than 0 or larger than 65535")
+        q.add_pus_tc(
+            create_action_cmd(
+                object_id=BPX_HANDLER_ID,
+                action_id=BpxActionId.MAN_HEATER_ON,
+                user_data=struct.pack("!H", burn_time),
+            )
+        )
+    if op_code == BpxOpCode.MAN_HEATER_OFF:
+        q.add_log_cmd("BPX manual heater off")
+        q.add_pus_tc(
+            create_action_cmd(
+                object_id=BPX_HANDLER_ID, action_id=BpxActionId.MAN_HEATER_OFF
+            )
+        )
 
 
 HEADER_LIST = [