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I have a Sungrow SBH battery. How do I use the iSolarCloud app and what do the lights mean?

Short answer. The SBH is Sungrow’s larger-module high-voltage lithium (LFP) battery, built from 5.0 kWh modules. You watch it in the iSolarCloud app. On the front, five SOC bars show the charge (each bar is 20%) and a status light shows its health: steady blue is normal, red means an alarm or fault. Read the lights from where you stand, and call us if you see red.

Safety first. Never open a switchboard, remove a cover from your battery or inverter, or touch any wiring. Anything beyond the app, a light you can read from a safe distance, or your own router is a job for a licensed electrician. If you see smoke, smell burning, hear arcing or see water on or near the unit: keep everyone away, switch off at your main switch only if it is safe to do so, and call 000 if there is any fire or smoke.

Sungrow hybrid inverter above a Sungrow battery stack on a brick wall, installed by Sun Connect Solar in the Northern Rivers

What an SBH battery is

Sungrow’s SBH range is a floor-standing stack of 5.0 kWh modules: from two modules (10 kWh) up to eight (40 kWh), with up to four stacks able to run in parallel on a compatible Sungrow hybrid inverter. It is rated IP55 for indoor or outdoor mounting, and Sungrow lists a 10-year warranty on the datasheet (conditions are in its warranty letter). Which size you have comes from the design we did from your power bills.

Reading the iSolarCloud app

  • Your plant is created in iSolarCloud when the system is commissioned. Log in with the account we set up.
  • Select your plant and tap Overview to see the live power flow and the battery charging from solar.
  • Tap Device, then Battery, for the battery’s information and operating parameters, including its state of charge.
  • Sungrow notes the app can take 5 to 10 minutes to refresh its data, so a number that looks old is not always a problem.

What the lights on the battery mean

This is Sungrow’s own description for the SBH, in plain English.

  • SOC bars (five): none lit = empty; 1 bar = up to 20%; 2 = up to 40%; 3 = up to 60%; 4 = up to 80%; 5 = above 80%. A steady SOC light means the battery is working normally; blinking means it is charging or discharging.
  • Status light, steady blue: normal operation.
  • Status light, slow blinking blue (about once a second): booting or on standby.
  • Status light, fast blinking blue (every half second): being upgraded, tested or calibrated.
  • Status light, steady red: battery system fault.
  • Status light, slow blinking red: battery system alarm.
  • Status light grey or off: no fault.

Modes and backup reserve

As with the SBR, the Sungrow hybrid inverter decides when the battery charges and discharges. Sungrow’s inverter manual describes a Backup Mode (off by default) with a reserved battery level kept for a blackout, plus battery discharge times and forced-charge times. These settings differ between inverter models and app versions, so tell us what you want and we set it. See Backup Reserve and battery modes.

Firmware

Updates are done through the app while the system is grid-connected, and nothing should be changed during one, per Sungrow. We handle updates for systems we install. The fast blinking blue light can simply mean an update or calibration is running, so do not interrupt it.

Warranty and documents

The batteries we install carry a 10-year battery warranty, with Sungrow’s conditions in its warranty letter. Our 25-year workmanship warranty covers our installation work only; equipment is covered by Sungrow. See where to find your warranty documents.

Common alarms and safe first steps

Alarms and faults appear in iSolarCloud with a code. Sungrow’s troubleshooting list covers things like data not refreshing yet (wait 5 to 10 minutes), communication problems and temperature limits (the batteries charge between 0 and 55 degrees C and discharge between minus 20 and 55 degrees C, so a very cold or hot spot can pause charging). Persistent alarms need the installer.

  1. Note the code and time in the app, and photograph the lights from a safe distance.
  2. Wait 5 to 10 minutes if the app data looks old, then refresh.
  3. If only the app is affected, check your router.
  4. Do not open covers, press buttons or switch anything off and on.
  5. Call us with the code, the photo and a screenshot.

If you ever need to isolate the system, follow the shutdown procedure on the label on your inverter, in the order shown.

SBR or SBH: what is the difference?

The two ranges look alike and run the same way, but SBH modules are 5.0 kWh (against 3.2 kWh for SBR) and handle up to 50 A (against 30 A). Our full comparison: Sungrow SBR vs SBH: what is the difference?

Read more: Sungrow batteries from Sun Connect Solar and Sungrow, Solax and Tesla batteries

When to call us

If we installed your system, call us on 0483 903 020. Our service help for existing customers is free: we start by working through it with you by phone. If you are not yet a customer, a service call is $250 + GST, which covers one hour on site within 20 km of Mullumbimby; travel further out is quoted separately. Contact us or call 0483 903 020 (Mon-Fri 7am-6pm, Sat 7am-4pm). We do not repair systems we did not install.

Quick questions

How do I tell how full my Sungrow SBH battery is from the lights?

The battery has five SOC bars, each worth 20%: no bars is empty, one bar is up to 20%, and five bars is above 80%. A steady SOC light means normal; a blinking one means it is charging or discharging.

What does a blinking blue status light mean?

Slow blinking blue (about once a second) means the battery is booting or on standby. Fast blinking blue (every half second) means it is being upgraded, tested or calibrated. Neither is a fault.

What does a blinking red light mean on an SBH?

Sungrow lists slow blinking red as a battery system alarm and steady red as a battery system fault. Note the code in iSolarCloud and call us.

Is an SBH the same as an SBR?

No. Both are modular high-voltage lithium iron phosphate batteries, but SBH modules are larger (5.0 kWh against 3.2 kWh) and carry more current. See our SBR vs SBH comparison.

Can I add more modules later?

Sungrow says a stack takes two to eight modules and a system can run up to four stacks in parallel, but adding modules has to follow Sungrow’s procedure, including matching the charge level. Call us first; adding modules without it can affect the warranty.

Sources

Last checked 7 October 2026. Only the manufacturer’s, the network’s or the government’s own documents are used; app menus and defaults change between models and versions, so if your screen looks different, call us rather than guess.

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