Solis hybrid RHI-6K-48ES-5G with DIY Lifepo4 16pcs 48volts,,, BMS ?
- Thread starter Drsif
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thats weird???
They do use LiFePo4s.
sijones2010
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Fair enough, I've never looked at the pylontech batteries in any detail, I just copied there protocol for my application.
All DIY builders I know do 16 series cells, and reviews of the seplos BMS is with 16 cells, so going with 15 could have unintended consequences as the charge voltage might be set for 16 and not 15 etc etc.
All DIY builders I know do 16 series cells, and reviews of the seplos BMS is with 16 cells, so going with 15 could have unintended consequences as the charge voltage might be set for 16 and not 15 etc etc.
shavermcspud
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the US2000 use Lithium Ion pouch cells in 15s with a nominal voltage of 3.6V per cell (54.0V) the same as cylindrical cells, Lithium Phosphate packs in 16s such as in the US5000 series have a nominal voltage of 3.2V per cell (51.2V)
"US2000C lithium iron phosphate battery is the new energy storage products
developed and produced by Pylontech, it can be used to support reliable power
for various types of equipment and systems."
I have the US2000C units. From the teardown videos you can see 30 pouch cells in three stacks of 5 pairs.
And what type ?
The default is the Pylontech RS485 protocol,
or
The default is the Pylontech CANBUS protocol
sijones2010
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The Solis uses can bus for battery data.
So it doesnt support Rs485?
because I want to build Seplos MQTT (Home assitant)
sijones2010
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not for battery data (as far as am aware) can't see an option for it.
Seplos has rs485 and CAN comms, so possibly CAN to Solis and then monitor over the 485?
Hello,
I have a solis rhi 5k 48es5g, which is installed with 3kWp solar panels.
They installed this without a meter (Solis 1-Phase Meter With CT), but it works via an App.
Do you know if this meter is necessary to work with a battery?
because I now have a self-made battery attached to it with pylontech BMS, this should work, but if I, for example
When you turn on the kettle, the battery will not step in to take over the power...
I have a solis rhi 5k 48es5g, which is installed with 3kWp solar panels.
They installed this without a meter (Solis 1-Phase Meter With CT), but it works via an App.
Do you know if this meter is necessary to work with a battery?
because I now have a self-made battery attached to it with pylontech BMS, this should work, but if I, for example
When you turn on the kettle, the battery will not step in to take over the power...
The meter is essential so the inverter knows how much power to supply to provide the house load. With no meter it can't do that. I assume in that case it will charge the batteries first, then any excess will be output to the load and export.
looking for such a cable.....preferably in EU
Just RJ45 Cat5e / Cat6 cable is good. Physical connection is using the green+green-white twisted pair of RJ45. Green is RS485A, Green-white is RS485B connection.
Hi Drsif, I also have the RHI-6K inverter and seem to be having an issue with noise levels.
The fan noise is not an issue as inverter is in an integral garage but when the fan comes on the unit itself has like pulsing vibrations, like a vroom vroom vroom etc .. about 3 pulses per second, I cannot hear this in the garage as the high pitch noise from the fan is all i can hear but from inside the house i can hear it through the wall and it's driving me mad.
Solis cannot help as needs to be looked at by a pro/electrician, but the installers are saying that the noise level is normal and that my cavity wall is causing the issue..
not much you can do of course but was wondering if you could touch the side casing of your inverter when the fan is on to see if this vibration is normal.
I force the fan to come on by doing a quick discharge but most annoyingly the vibration starts in auto mode early hours when in cheap rate.
Many thanks for your time.
I will also create a new post.. (Afterthought)
good idea - I am responding to that posting.
shavermcspud
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Hi, we install these daily and they do get noisy on full chat. the solution is rubber tiles installed between the rear mount bracket and the wall.
We use hook stops which technically are designed for roof solar rail mount hooks, but as they are already fire resistant, fairly thick and dense they work a treat and kill the noise. you could use an thick dense rubber mat, but use something fire rated ideally.
Hi Shavermcspud, thanks for your reply. Yes the noise is quite loud but the actual fan noise is a high pitched whine which being constant does not really get noticed that much and the inverter is fixed to a cavity wall so actually can’t hear that inside the house. The noise I’m hearing is a pulsing reverberating kind of vibration, like a vroom vroom sound, I am going to tr to record it but in the meantime could you confirm if you have ever noticed when the fan is on that If you touch the side of the front casing can you feel any pulsing vibrations, thanks in advance…Hi, we install these daily and they do get noisy on full chat. the solution is rubber tiles installed between the rear mount bracket and the wall.
We use hook stops which technically are designed for roof solar rail mount hooks, but as they are already fire resistant, fairly thick and dense they work a treat and kill the noise. you could use an thick dense rubber mat, but use something fire rated ideally.
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