How hot is your inverter!

I have a GIV-HY5.0 gen 2 and 9.5 Battery.

  • Today my battery reached a temperature of 33c and the inverter reached 56.7c at 10am this morning. The battery discharged fully between 10:00hrs and 18:00hrs only starting this evening. it is in a cupboard inside the house and i have had the system since 2022 without issue.

  • I suspect that the only thing that has changed is the additional activity created by being on Intelligent Flux Export means the system has little time to cool and the cumulative effect is the issue. Would this be a reasonable assumption ?

Your 100% right - it’s just getting HOT as it’s doing actual work :slight_smile: - and if you have seen these temps since 2022 and your not having issues or concerns thats cool.

But for me I like to keep things cool - batteries like the warmth and inverters like the cool… - but if you put a few fans on it - how hot does it get then ?

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I’ve got 3.6 gen2 inverter and 2x5.2 batteries. Last summer the inverter temp was regularly exceeding 55deg. It is installed in a loft on the south facing wall. This year I have installed 4x 92mm fans on the top of the inverter to pull air up through the cooling fins, and a blower below the inverter to provide forced air through the cooling fins. Ive connected these fans to a temperature switch where the sensor is located around 50mm below the top of the inverter, between cooling fins and with a small baffle below it so it doesn’t get triggered by the forced air flow. I’ve set the switch to cut in when the sensor records 32deg and switch off at 25deg. These temperatures don’t reflect internal inverter temp. I’ve just settled on them through trial and error. I have compared my internal inverter temp this year with the same dates last year and overall I am getting around a 10 deg reduction in internal inverter temp. I recognise that it is difficult to be very accurate with this analysis unless I have an identical un force cooled set up in the same location but I am confident that my action has delivered a positive result for the expenditure.

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Hi,

Had my AIO installed last week and added some graphs over the weekend to monitor in HA, saw inverter peak at ~70c this morning during over night charge, what mounting frames did you order for your fans please?

Thanks,
Peter.

I just got a small piece of wood ( 3mm ) and made a Triangle, then custom fit it.

I just then used a HotGlue Gun to stick the wood to the wall, and I also used the glue to stick the fans together.

I am getting a 3D printer soon so might do something fancy - but I just put it on a Triangle so the fans blew into the side correctly.

My other hint is that I also bought some ā€œFilter Foamā€ which once again are just glues to the back of the fans - this stops the dust from being pushed into the sides.

  • Now my final bit was that I put Duck Tape around the fan so no dust air gets pushed in ( I should have put a wood triangle on both the top and bottom really.
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Morning,

Thanks - I was trying to reply directly to @Josh to check what they had ordered from China mentioned in their comment, but either I don’t have sufficient rights a new member or didn’t do it right!

My plan was just to initially balance some 140mm USB fans on top of the AIO, but to then mount them properly on a frame - if I manage to teach myself how to use 3D design software I’ll share any useful STLs :grinning:

I have the same setup and this is my experience too.

My setup: AC3.0 with two 8.2 kWh batteries (ā€˜Old tech’).
Tariff: Intelligent Octopus Go March–April!

iOG exercises the inverter and batteries with 3 main periods driven by iOG slots.
Max battery temp ~34C

  1. ~05:30 – 18:00 Eco mode
    Max temp ~31-32C
  2. ~18:00 – 23:30 Batteries discharged 100% – 4% @~3 kW,
    Max temp ~58-59C
  3. 23:30 – 05:30 Batteries charged 4% – 100% @~3 kW,
    Max temp ~53-54C

So the work done by the inverter is key.
My set up is in a North-facing large porch: ~18 – 24C all year.

I would imagine that a loft in summer might send the temp very high as shown by some of the posts.

Makes me wonder whether I should consider some of these fans.
iOG and good Agile days will exercise battery.

Thanks for the interesting post.

Rob