EG4-LifePower4 & Growatt SPF 3000TL LVM-24P Settings

[liquidcable]

I have a SPF 3000TL LVM-24P and 6 EG4-LifePower4 24V batteries and I've found that is you set the Growatt to Li (settings 5) then the it will only charge the battery bank at 50A. I would like to change this is close to 100A to fully utilize my solar panels. I need to change from Li to US2 in the Growatt and manually set the voltages. Here is what I've read are good settings but can anyone else confirm?

Program​	Value​	Notes
2​	90​	max current
5​	US2​	battery type
19​	28.2​	charging voltage
20​	27.6​	floating charging voltage
21​	22​	low DC cut-off voltage

 

[mountkay]

- from the manual / spec sheet for the batteries:

Charging Voltage (Bulk/Absorb) 28.1V (+/- 0.2V)
Float 27V (+/- 0.2V)
Low DC Cutoff 23.5-22V (depending on load - start high, lower if needed)


Spec Sheet:

https://signaturesolar.com/content/documents/EG4/EG4%20LifePower4%2024V%20Spec%20Sheet-2.1.0.pdf

Manual:

https://signaturesolar.com/content/documents/EG4/EG4-Lifepower4%2048V-24V%20Manual-2.3.1.pdf

Source:

EG4 LifePower4 Lithium Battery | 24V 200AH | Server Rack Battery

EG4 Lithium battery 25.6V (24V) 5.12kWh with 200AH internal BMS. Made of UL Listed Battery Cells. Off Grid Solar Batteries - Off Grid System - Solar Batteries for Home - Lithium Solar Batteries - Deep Cycle Solar Batteries - Power Reserve - Solar Panels Plus Battery - LifePo4 - LifePower4 - Life...

signaturesolar.com

- You can probably still up the amperage to the batteries if you need to.
(at your current 90a / 6x batteries you are only charging at 15a)

Spec sheet says:
Charging Current Max Constant Charge: 100A (30-50A recommended).

post where Ben from SS says they charge EG4-LL at 40amps in their office:

EG4-LL battery optimal charge rate ?

Another newbie question. What is the optimal charge rate for the EG4-LL ? I read some where it should be 30 - 40 amps. Is lower better ? If charged over 40 amps will it decrease battery life. Thanks for any info !

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