Tracer8420AN charge settings for lifepo4

[CGW_6_Actual]

I have 8 yingli 220w panels (4 east, 4 west but very shallow angle roof, almost flat) on a Tracer 8420 with a pair of eco-worthy lifepo 150ah in series (with an external balancer), the problem Im having is that my SOC in the Solar Guardian app always say between 40% and 70%. These are my current settings, is there something I could do better to actually get full SOC?

	Battery Type			User
	Rated Voltage			24V
	Overvoltage Disconnect Voltage			29.60V
	Charging Limit Voltage			29.20V
	Overvoltage Recovery Voltage			29.20V
	Equalize Charging Voltage			29.00V
	Bulk Charging Voltage			29.00V
	Float Charging Voltage			28.00V
	Bulk Voltage Recovery Voltage			26.40V
	Low Voltage Recovery Voltage			25.60V
	Undervoltage Alarm Recovery Voltage			24.40V
	Undervoltage Alarm Voltage			24.00V
	Low Voltage Disconnect Voltage			22.20V
	Discharging Voltage Limit Voltage			22.00V
	Li-ion Battery Protect			Enable
	Temperature Compensation			0mV/℃/2V

	Battery Capacity			150Ah
	Boost Charging Time			120min
	Equalize Charging Time			0min

 

[pollenface]

I dare say the "solar guardian app" is the problem.

Other notes:
You have bulk charging voltage listed twice, 29v & 26.4v?
Float @ 28v seems high to me (battery killing), 26.8-27v would be my preference.

 

[Kiwi2000]

I dare say the "solar guardian app" is the problem.

Other notes:
You have bulk charging voltage listed twice, 29v & 26.4v?
Float @ 28v seems high to me (battery killing), 26.8-27v would be my preference.

The 'Bulk Voltage Recovery Voltage' 26.4v is where it gets triggered to go back into bulk charging mode.

 

[pollenface]

The 'Bulk Voltage Recovery Voltage' 26.4v is where it gets triggered to go back into bulk charging mode.

i misread, my apologies

Is the solar guardian app shunt based or voltage based?