FAQ

Q1: What are the benefits of replacing a lead acid battery with Superpack LiFeP04 battery?

A1: Superpack batteries are/have:

1.Similar voltage to 12V lead acid battery

2.Intrinsic safe lithium ion battery

3.1/2~1/3 weight of a lead acid battery

4.Fast charge & stable output

5.Slow capacity loss

6.High cycle life

7.Cost effective

8.Environmentally friendly

Q2: Can Superpack LiFeP04 batteries be connected in series or in parallel?

A2: Install correctly rated DC circuit breaker between the output of the final battery module (in a string) and DC input of an inverter. Make sure that the battery module is installed in such a location or enclosure that ensures an appropriate degree of environmental protection in order to avoid penetration of dust, dirt, water, moisture, vermin etc into the IP21 rated battery module.

Q3: If 14.4 Kwh worth of capacity is required, can the 4.8 Kwh battery module be parallel to get 14.4Kwh in a single tower? And there will a choice to use either IP 22 or IP 65 cabinet, am I right?

A3: Yes.

Q4: I have a customer with an existing solar system with Symo 15 inverter. He needs to retrofit it with an AC Coupled battery solution. He has been quoted a Tesla Powerwall, just wanted to know if Hresys has a solution?

A4: Yes. However, the technical characteristics of the existing system and the consumer loads need to be assessed in order to size up the battery.

Q5: Are the HRESYS TL-LFP 48V batteries compatible with the GOODWE S-BP inverter?

A5: Generally the GOODWE inverters are compatible with the HRESYS TL series, but the TL also can work autonomously with any inverter, without using comms.

Q6: Are HRESYS batteries listed in any of the home battery schemes currently running in various states in Australia?

A6: The TL48100 batteries are approved by the Clean Energy Council and can be built into a domestic system. The kW value is required and the hours of the back up that the customer wants.

Q7: My client is looking for an all-in-one solution, including fitting inverters inside the system. Is that something you do?

A7: Yes, we can do that.

Q8: Are HRESYS batteries listed with the CEC as approved product?

A8: Our 48100 battery is listed with the CEC. The 48150 battery is not listed with the CEC.

Q9: You claim compatibility of batteries  with Fronius. Fronius say, most likely the inverter would not even recognize the battery. Is that correct?

A9: Normally inverters can work with lead acid batteries which don’t need communication. Which means Lithium battery can work with inverter without communication, just to make some setting on the inverter, changing the battery mode. We are not clear what the Gen24 means, can you please help provide us the Gen24 information?

Q10: How does the cooling work with an IP65 cabinet?

A10: If the cabinet is IP65, there are two options:(1) Install an IP65 filter fan to cool the battery;

(2) the cabinet can be installed with air conditioner for cooling. It is better to use the air conditioner for cooling.

Q11: Are there any restrictions for fully wired systems in Australia, e.g. Darwin hot moist climate?

A11: battery specification and datasheet shows the temperature range and the humidity range, if the environment is in the range of battery limited, then battery can work normally. 

Q12: How do I store 12V lithium-ion batteries?

A12: 

• Can be stored up to 6 months thanks to the extremely low self-discharge rate and no risk and sulphation.
• Needs to be recharged every 3 months.
• Needs to be stored in a clean, cool, dry area.

Q1: I was on-site the last couple of days and had (2) Chg Temp Low alarms. The first occurrence cleared itself, the second did not and require a manual reset. Both faults were on BCU01 which accounts for the vast majority of the faults experienced.

A1: The Chg Temp Low alarm is not a serious problem, it is just a reminder of the working status of the battery, it will not affect the normal use of the battery module, no need to change any settings to reduce or eliminate this alarm.

Q2: Is the  Chg Temp Low alarm serious and if there are any settings which should be changed to reduce or eliminate this alarm? Also, I’m concerned that on one occasion the fault did not reset itself. I am only onsite 2 or 3 days a week but have a fully stocked freezer running onsite. My fear is that the fault will not reset and the other battery will not be able to meet the demand.

A2: According to the working nature of the lithium battery, HRESYS will set the best parameter range. The root PC software can check the original parameter settings of the battery module.

First of all, according to the screenshot of the host computer provided by the customer, the operating environment of the module at that time is about 10 degrees Celsius. This temperature is the range of the warning value threshold parameter set by us. From the original parameters, we can read out that the temperature recovery threshold is 15 degrees Celsius. .

In addition, in the first occurence it was resolved by itself, and in the second ocurence, it did not resolve, because the first time the temperature returned to 15 degrees Celsius and above, the alarm will be automatically released. The second time the temperature does not reach the alarm recovery threshold, the alarm will not be released.

Even if the alarm state of the battery does not reset itself, it will not affect the normal use of other battery modules.

Q3: Is there a way to set the batteries to automatically reset at a prescribed time each day? 

A3: There is no way to set the battery to automatically reset every day at a set time.