MPP Solar PIP - How to 'force' batteries to charge from the grid?


HUGE range of batteries & accessories at www.batteryhookup.com 5% coupon "POWERWALLS"

BarryG

New member
Joined
Feb 15, 2019
Messages
18
Hi All

I have an MPP Solar PIP 5048MK inverter/controller - which is working great with my ground-mounted (6 x 250W) Solar array, and a DIY 10kWh 18650 battery pack (built from recycled e-bike battery packs).

I suspect that during the Winter months, however, I won't get enough solar to keep the batteries fully charged, so I want to be able to charge the batteries from the grid - but only when it's cheap rate. I have been trying to find which of the many available options for the controller/inverter I should change in order to charge the batteries from the grid (I need to be able to do this when the load being used is minimal, and therefore the grid won't be being used as the source of the LOAD at this time).

My plan is to automate this process so that I can make this change at a specific time-of-day (when my cheap rate for electricity starts).

Thanks for any help offered!
 

daromer

Moderator
Joined
Oct 8, 2016
Messages
5,662
And what is your question? Just enable AC charging when the rate is low and set the current to charge at and voltage ranges.

Then disable it again later on.
 

BarryG

New member
Joined
Feb 15, 2019
Messages
18
Thanks, daromer.

My question is - having read and reread the user manual I can't find an option that allows me to do this. Maybe I'm just being stupid but none of the options I have tried changing, make the inverter start to charge from the grid.....

(I also have to say that the user manual isn't very easy to understand either!)
 

Engineer34

Member
Joined
Feb 5, 2020
Messages
37
Change menu No:16 from SNU to CSO.
CSO is no solar connected or evening no solar income it
will force charge batteries from AC charger (Grid/Generator)
 

BarryG

New member
Joined
Feb 15, 2019
Messages
18
Engineer34 said:
Change menu No:16 from SNU to CSO.
CSO is no solar connected or evening no solar income it
will force charge batteries from AC charger (Grid/Generator)
Thanks, Engineer34. This option doesn't work that way for me. However, I have got it to work by changingoption 01 - "Output source priority".

So now I have the whole thing worked out.Using daromer's solar-sis set-up for the Raspberry Pi, I have a script that I can run (and automate/schedule) to change the inverter/controller to charge from the grid - and back to solar again.

Thanks to all who helped me with this - especially daromer!
 

daromer

Moderator
Joined
Oct 8, 2016
Messages
5,662
Yw. though i didnt do much :p

Yeah unfortunately the MPP products are a bit hard to understand because some functions dont do what you expect or want them to :D
 

gazzaman2k

New member
Joined
Oct 24, 2019
Messages
6
if you want to automate it, set the charge to solar first, and then when you switch the inverter to line mode it will then charge when so solar is avaliable (if your charging at night)

or set it to solar and utility and then it will charge from both solar and grid.


get a orange or raspberry pi and run this

https://github.com/ned-kelly/docker-voltronic-homeassistant

or if you have a computer nearby always connected to the inverter via serial then use mpp solar patrol, and then you can set it to charge from grid from certain time that you set
 
Top