Good day

i am running a Goodwe 5048 es with 2 pylontech us3000c batteries, the only issue I have is the slow charging, only charges at 200watt, which will not get batteries to 100%, any way to charge them at a faster rate? I have 2x3kw solar strings, so it’s trickle charging basically.

Did you use the Goodwe PV Master phone application to set your inverter to the "General" charge option, under the Basic Settings?

Hi Deon

yes the PV master app, I used the default and set it to backup.

here is the settings:

I had to use back-up mode as the grid went down after load shedding last night and they are still trying to repair. It seems my Goodwe at least had the setting for pylontech 3000c.

Any help will be truly appreciated.

I suggest leaving the settings on General, as without any Eskom, the inverter should be able to pull full PV from the panels.

Is it not allowing you to select General?

Hi Deon, yes let me change it to general, it should not be a problem.

if I don’t respond……it didn’t work 😅

Changed to general mode

21 hours ago, GFDannhauser said:

Hi Deon

yes the PV master app, I used the default and set it to backup.

here is the settings:

Backup mode does indeed charge the batteries very slowly. General mode will be better, but charges from PV.

Or you can use economical mode. The latter permits time based rules so that you can charge the batteries from grid, if available, at a certain time. Be sure that you set the charge %age correctly. This is probably less than 100%. Confirm with your battery manufacturer. This charges way faster than backup mode.  Rules can be to charge for a certain time period or to discharge for a certain time period, so be sure to set it to charge.

Usually, on a clear day, my batteries hit 100% SOC around mid day and stay that way until at least 16:00. So I have a rule that says to charge from grid every day from 15:00 to 16:00 - with charge percentage as advised by my vendor. If the battery is charged then this makes no difference. If it's been a cloudy day then I get a late afternoon boost. This sends about 2.7 kw/h to my battery.

Outside of the hours specified by this rule, the Goodwe behaves as if it is in general mode.

On 2021/06/11 at 12:39 PM, GFDannhauser said:

Good day

i am running a Goodwe 5048 es with 2 pylontech us3000c batteries, the only issue I have is the slow charging, only charges at 200watt, which will not get batteries to 100%, any way to charge them at a faster rate? I have 2x3kw solar strings, so it’s trickle charging basically.

Have you double checked the BMS communication between batteries and the inverter? If the inverter doesn't know the max amps it can charge at, perhaps it using a lower amps as max and thus the slow charging?

 

I have a 3000c as master and my inverter happily charges as much as it gets from the PV to the batteries in general mode. Have seen up to 2000w+ with only 3000w PV.

Edited June 14, 20215 yr by Tinuva

All good, great support received from Goodwe SA, system charged up.

GFDannhauser

What was the solution to speed up the charging from the grid? 

On 2022/06/29 at 8:59 PM, Neels Venter said:

GFDannhauser

What was the solution to speed up the charging from the grid? 

Late to the game here, but posting nonetheless in case people don't know:

1. Ensure inverter and battery firmware is updated - Goodwe Support did it remotely for me

2. Open PV Master app and connect to Inverter Wifi

3. Select Settings

4. Select Advanced Settings

5. Tick "Immediate charge to battery"

This will force charge the batteries. I get up to 4500w on 4 batteries.

Only do this is you need to charge when there isn't sufficient solar as the system will charge up to the same rate if sufficient solar, meaning you will be wasting $.

Tx