Beginners Guide to Processing 18650 Cells | Cell Database


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Making my Pip-5048MS work with a 62v full state of charge voltage
#1
Hello I bought a Mpp solar pip-5048MS thinking it would work without much fuss with my 15s Lithium NMC battery bank. I though I check the specifications but not it almost seems as if there is another version of my unit with a higher voltage limit.Did I buy the wrong hardware? Is this a setting that can only be changed within watchpower? Can I just flash the lithium firmware to fix this? 

Thanks 
John
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#2
There may be voltage limits on the semiconductor devices used in the inverter. Changes to firmware and settings would not overcome such limits. I wanted to go to 16S, but I would then have far fewer inverters to choose from. At this stage I am sticking with 14S.
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#3
Specs for the 4048/5048MS state that Max DC voltage is 60V. So no, you can't go over that unless there's a hardware change and the firmware is custom built.
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#4
AS said there is HW limitations inside. I wouldn't mixture with raising above whats set in the software. I have heard of many people on the earlier versions that even had issues with original max. I know those got upgraded hw later on but i would bet they didn't go bananas and updated it that much that you can raise it even more.

And what i can see the PF1.0 have 60V as max limit. And max settings you can set is this:
Boost Voltage (Flooded/MF) 29.2V/28.2V 58.4V/56.4V
Float Voltage (Flooded/MF) 27.0V/27.0V 54.0V/54.0V

Ie 58.4.

Regading your connection problem you need to make sure you got correct software version and that you have a serial port working properly on your computer. You can try another usb-> serial port adaptor
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#5
(11-29-2017, 09:10 PM)daromer Wrote: AS said there is HW limitations inside. I wouldn't mixture with raising above whats set in the software. I have heard of many people on the earlier versions that even had issues with original max. I know those got upgraded hw later on but i would bet they didn't go bananas and updated it that much that you can raise it even more.

And what i can see the PF1.0 have 60V as max limit. And max settings you can set is this:
Boost Voltage (Flooded/MF) 29.2V/28.2V 58.4V/56.4V
Float Voltage (Flooded/MF) 27.0V/27.0V 54.0V/54.0V

Ie 58.4.

Regading your connection problem you need to make sure you got correct software version and that you have a serial port working properly on your computer. You can try another usb-> serial port adaptor
Why does the manual say 60 or 66v then?what model handels the 66v maximum?
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#6
It can handle 60v but it wont charge higher. Ie the hardware will tollerate it. This is the change that they did due to the first version blew up when you maxed it out.

Where do you see 66v? Do you have link to the catalog? I cant find anything stating above 60V currently.

https://www.mppsolar.com/v3/catalogs/PIP-MS.pdf (Seem to be the old)


Edit: I guess this is the 66V version
https://voltaconsolar.com/off-grid/48v-o...lizer.html

But you will need other software for that version and the hardware will most likely be different from the 60V version
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#7
Same here:
http://www.voltronicpower.com/oCart2/ind...uct_id=132
The 66V version is special. So you need to contact them for to get it.

So yes they have 2 versions for it Smile
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#8
(11-29-2017, 09:34 PM)daromer Wrote: Same here:
http://www.voltronicpower.com/oCart2/ind...uct_id=132
The 66V version is special. So you need to contact them for to get it.

So yes they have 2 versions for it Smile
Dammit so I messed up and Blew 700Usd on paper wait because the company decided to list 2 different products in the same spec sheet/manual....Even the booklet that came with it says both 60v or 66v.
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#9
jgalton: You might be able to exchange the units and pay the difference if you haven't used or unpacked the unit yet. Worth a shot. Unless you didn't buy it from them
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Dollar Shave Club. Best Razor I've ever used
Certified 18650 Cell Reclamation Technician
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#10
Jgalton check the serial number and see what version you got first. That one should stat what you got and then talk to them about it.
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Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcoming: 14S 18650~30kWh | Automatic trip breakers, and alot more
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