maximum_charging_power: -2500.0 (range 0.0 - 2500.0)

[riddle-stc]

Device Model

Marstek Venus E

Firmware Version

V156

Installation Method

Home Assistant

Issue Description

My log is being spammed with

ERROR (MainThread) [homeassistant.components.mqtt.number] Invalid value for number.hame_energy_hmg_50_acd92968d6a2_maximum_charging_power: -2500.0 (range 0.0 - 2500.0)

Any Idea how to fix this?

hm2mqtt Configuration

hm2mqtt Logs

[18:50:24] DEBUG: Device topics:
[18:50:24] DEBUG: Device info: HMG-50:acd92968d6a2, topic type: device
[18:50:24] DEBUG: Received new device data for device HMG-50:acd92968d6a2
[18:50:24] DEBUG: Device state hm2mqtt/HMG-50/device/acd92968d6a2/data updated: {"deviceType":"HMG-50","deviceId":"acd92968d6a2","timestamp":"2026-02-02T18:50:24.435Z","values":{"tot_i":"102607","tot_o":"84500","ele_d":"469","ele_m":"1119","grd_d":"391","grd_m":"930","inc_d":"0","inc_m":"0","grd_f":"0","grd_o":"0","grd_t":"1","gct_s":"1","cel_s":"1","cel_p":"56","cel_c":"11","err_t":"0","err_a":"0","dev_n":"156","grd_y":"0","wor_m":"0","tim_0":"0|0|0|0|0|0|0","tim_1":"0|0|0|0|0|0|0","tim_2":"0|0|0|0|0|0|0","tim_3":"0|0|0|0|0|0|0","tim_4":"0|0|0|0|0|0|0","tim_5":"0|0|0|0|0|0|0","tim_6":"0|0|0|0|0|0|0","tim_7":"0|0|0|0|0|0|0","tim_8":"0|0|0|0|0|0|0","tim_9":"0|0|23|59|127|-2500|1","cts_m":"0","bac_u":"1","tra_a":"1","tra_i":"0","tra_o":"0","htt_p":"0","prc_c":"0","prc_d":"2","wif_s":"49","inc_a":"0","set_v":"1","mcp_w":"-1","mdp_w":"800","ct_t":"5","phase_t":"1","dchrg_t":"0","bms_v":"216","fc_v":"202501211626","wifi_n":"WifiHS","seq_s":"0","ctrl_r":"1","par":"0","gen":"255","ble":"2","shelly_p":"1010","c_ratio":"100","udp":"0","api":"0","port":"30000","id":"2|0|1|255|0","bl":"1","dod":"88"},"batteryCapacity":560,"batterySoc":11,"totalChargingCapacity":1026.07,"totalDischargeCapacity":845,"dailyChargingCapacity":4.69,"monthlyChargingCapacity":11.19,"dailyDischargeCapacity":3.91,"monthlyDischargeCapacity":9.3,"dailyIncome":0,"monthlyIncome":0,"totalIncome":0,"offGridPower":0,"combinedPower":0,"workingStatus":"standby","ctStatus":"connected","batteryWorkingStatus":"notWorking","errorCode":0,"warningCode":0,"deviceVersion":156,"gridType":"adaptive","workingMode":"automatic","wifiName":"WifiHS","localApiEnabled":false,"localApiPort":30000,"timePeriods":[{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"23:59","enabled":true,"power":-2500,"weekday":"0123456"}],"autoSwitchWorkingMode":false,"versionSet":"2500W","maxDischargePower":800,"maxChargingPower":-1}
[18:50:24] DEBUG: Published to hm2mqtt/HMG-50/availability/acd92968d6a2: online
[18:50:24] DEBUG: Published to hm2mqtt/HMG-50/device/acd92968d6a2/data: {"deviceType":"HMG-50","deviceId":"acd92968d6a2","timestamp":"2026-02-02T18:50:24.435Z","values":{"tot_i":"102607","tot_o":"84500","ele_d":"469","ele_m":"1119","grd_d":"391","grd_m":"930","inc_d":"0","inc_m":"0","grd_f":"0","grd_o":"0","grd_t":"1","gct_s":"1","cel_s":"1","cel_p":"56","cel_c":"11","err_t":"0","err_a":"0","dev_n":"156","grd_y":"0","wor_m":"0","tim_0":"0|0|0|0|0|0|0","tim_1":"0|0|0|0|0|0|0","tim_2":"0|0|0|0|0|0|0","tim_3":"0|0|0|0|0|0|0","tim_4":"0|0|0|0|0|0|0","tim_5":"0|0|0|0|0|0|0","tim_6":"0|0|0|0|0|0|0","tim_7":"0|0|0|0|0|0|0","tim_8":"0|0|0|0|0|0|0","tim_9":"0|0|23|59|127|-2500|1","cts_m":"0","bac_u":"1","tra_a":"1","tra_i":"0","tra_o":"0","htt_p":"0","prc_c":"0","prc_d":"2","wif_s":"49","inc_a":"0","set_v":"1","mcp_w":"-1","mdp_w":"800","ct_t":"5","phase_t":"1","dchrg_t":"0","bms_v":"216","fc_v":"202501211626","wifi_n":"WifiHS","seq_s":"0","ctrl_r":"1","par":"0","gen":"255","ble":"2","shelly_p":"1010","c_ratio":"100","udp":"0","api":"0","port":"30000","id":"2|0|1|255|0","bl":"1","dod":"88"},"batteryCapacity":560,"batterySoc":11,"totalChargingCapacity":1026.07,"totalDischargeCapacity":845,"dailyChargingCapacity":4.69,"monthlyChargingCapacity":11.19,"dailyDischargeCapacity":3.91,"monthlyDischargeCapacity":9.3,"dailyIncome":0,"monthlyIncome":0,"totalIncome":0,"offGridPower":0,"combinedPower":0,"workingStatus":"standby","ctStatus":"connected","batteryWorkingStatus":"notWorking","errorCode":0,"warningCode":0,"deviceVersion":156,"gridType":"adaptive","workingMode":"automatic","wifiName":"WifiHS","localApiEnabled":false,"localApiPort":30000,"timePeriods":[{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"0:00","enabled":false,"power":0,"weekday":""},{"startTime":"0:00","endTime":"23:59","enabled":true,"power":-2500,"weekday":"0123456"}],"autoSwitchWorkingMode":false,"versionSet":"2500W","maxDischargePower":800,"maxChargingPower":-1}

Hame Relay Configuration

Hame Relay Logs

[tomquist]

Thanks — I checked the mapping in code and it’s not a wrong path. For Venus, is mapped from (maxChargingPower). Your raw data shows (likely a firmware sentinel / ‘not available’), while HA defines the entity as a number with range 0..2500 and therefore rejects negative states and spams logs.

Proposed fix: treat negative as invalid and hide/disable the entity until the device reports a valid value. I opened PR #241 for this.