Thank you for the info, this means all 3 of mine are faulty.

On 2022/12/08 at 3:25 PM, Kesavan said:

I purchased the 48v 100ah hoselect lithium ion a week ago from world of Sunpower. The battery never charged fully and I found out that 3 cells did not work. It’s now in for repairs at Easton. It seems to be a generic Chinese battery with no traceable manufacturer or support. Lbsa confirmed that resellers falsely claim that they manufacture it. 

Has your battery been repaired and working properly now?

2 hours ago, Chrisbu said:

16 LiFePO4 cells

 

This means that to make a 48V battery pack requires 16 LiFePO4 cells, 16 strings full voltage 16*3.2 = 51.2V, LiFePO4 is considered to be the most fireproof, and their LiFePO4 is considered to be the most fire-resistant, and they typically last twice as long as ordinary NCA/NCM 18650 battery packs.

You will see all your 13 cells are charging to around 4.2v to get to the charge voltage of 54/55v compared to the recommended max 3.6v which means you are damaging all your cells every time you charge them. I took mine back and it was confirmed faulty. I got a refund and replaced it with a Shoto battery.

Question what is the diff between the 48v and 52v battery?

should the 48v not be 15 cells and the 52v 16 cells?

2 hours ago, Walter Perfect said:

Question what is the diff between the 48v and 52v battery?

should the 48v not be 15 cells and the 52v 16 cells?

I’m not an expert, but I have never seen a 48v battery with 13 cells. The float charge on that battery is 52v so if you divide that by 16 cells you get back to the 3.25v per cell needed for a LiFEPO4 battery for optimal charging. At 13 cells you are pushing each cell to 4v+ per cell which will kill the battery very quickly as it is being repeatedly over charged every charge cycle.

As I understand 48v is the output voltage, the charge voltage is something different.

 

7 hours ago, Chrisbu said:

I’m not an expert, but I have never seen a 48v battery with 13 cells. The float charge on that battery is 52v so if you divide that by 16 cells you get back to the 3.25v per cell needed for a LiFEPO4 battery for optimal charging. At 13 cells you are pushing each cell to 4v+ per cell which will kill the battery very quickly as it is being repeatedly over charged every charge cycle.

As I understand 48v is the output voltage, the charge voltage is something different.

 

I am on the same boat as you I.e. no expert however I am told that they are 3.7v cells and not 3.2v which does add up. Will investigate further but so far between myself and another guy we have six of these batteries and they all have 13 cells.

On 2023/01/07 at 6:11 PM, Chrisbu said:

I also recently installed one of these. I also have 3 faulty cells, any chance yours was 14, 15 and 16? I’m having buyers remorse on choosing this battery!!

Eason confirmed that this this battery is a 13s battery instead of 16 which is how it is advertised in terms on cell voltage by world of Sunpower. This may result in a shorter life but at the price point may be ok. 

Just now, Kesavan said:

Eason confirmed that this this battery is a 13s battery instead of 16 which is how it is advertised in terms on cell voltage by world of Sunpower. This may result in a shorter life but at the price point may be ok. 

Yes. The bms shows there are no cells 14,15,16

On 2023/01/24 at 9:18 AM, Walter Perfect said:

Has your battery been repaired and working properly now?

Eason says that the battery is a 13 cell type. My research only shows 48v as having 16 cells. I’ve installed as is and it seems to work with no error nessages

On 2023/01/24 at 6:43 AM, Walter Perfect said:

Anyone on this forum have a diagram showing how to connect the communication cables and dip switch settings for multiple hoselect 48v batteries? I have a Deye8kw inverter and currently connecting via Can to master and then daisy chaining the 3 batteries via rs485 A&B ports. Inverter only sees info from 1 battery, 3rd battery only recently added and not behaving properly not sure if it is because the original 2 have a lower capacity. 

Good day,

May I ask what Protocol you selected on your Deye inverter to enable comms with the Hoselect batteries?

Hi everyone. I notice, with amusement, that the question at the start was whether anyone could review Hoslect batteries. Two-thirds of the answers were about different products for different reasons. I can never understand an answer like: I can't answer your question but ... I don't know anything about your question, but ... 

Anyway, I would also value some feedback on the Hoselect 100Ah batteries. They are a little cheaper than others. I just bought two connected to a Mecer Lobo 2400 1400W. The seller said he had only used them on and off 6 months. I fired up the inverter and the batteries lasted 30 minutes with no load and 1 minute with a load of 1A.

Could it be that the Mecer inverter damaged the batteries?  Perhaps it is not suited to charging a gel battery. The Mecer has a 3-stage intelligent charging system but the specs say nothing about whether it is suited for charging gel batteries. 

  

13 minutes ago, Seve said:

Hi everyone. I notice, with amusement, that the question at the start was whether anyone could review Hoslect batteries. Two-thirds of the answers were about different products for different reasons. I can never understand an answer like: I can't answer your question but ... I don't know anything about your question, but ... 

Anyway, I would also value some feedback on the Hoselect 100Ah batteries. They are a little cheaper than others. I just bought two connected to a Mecer Lobo 2400 1400W. The seller said he had only used them on and off 6 months. I fired up the inverter and the batteries lasted 30 minutes with no load and 1 minute with a load of 1A.

Could it be that the Mecer inverter damaged the batteries?  Perhaps it is not suited to charging a gel battery. The Mecer has a 3-stage intelligent charging system but the specs say nothing about whether it is suited for charging gel batteries. 

  

The topic is about lithium but you ask about Gel? 

If deeply discharged the batteries can be claps within 6 months or less. The problem is not the charging of Gel batteries but the discharge. 

Edited September 4, 20232 yr by Scorp007

1 hour ago, Seve said:

Hi everyone. I notice, with amusement, that the question at the start was whether anyone could review Hoslect batteries. Two-thirds of the answers were about different products for different reasons. I can never understand an answer like: I can't answer your question but ... I don't know anything about your question, but ... 

Anyway, I would also value some feedback on the Hoselect 100Ah batteries. They are a little cheaper than others. I just bought two connected to a Mecer Lobo 2400 1400W. The seller said he had only used them on and off 6 months. I fired up the inverter and the batteries lasted 30 minutes with no load and 1 minute with a load of 1A.

Could it be that the Mecer inverter damaged the batteries?  Perhaps it is not suited to charging a gel battery. The Mecer has a 3-stage intelligent charging system but the specs say nothing about whether it is suited for charging gel batteries. 

  

I'll say this again,  2 essential questions battery system manufacturers should be able to answer to consumers is :

1 : Who manufacture the cells used inside the battery, is it new Grade A cells,  and how many are there inside ?

2: Who manufacture the BMS used to protect the cells inside the battery ?

If they don't want to answer these 2 essential questions, then run away !

( Long term testing done in Australia has shown that most battery system failures are due to BMS faults or failures ...) 

Even the LiFePO4 batteries sold on the PowerForum store they won't give me those 2 essential answers.  If you are proud of what you are selling, and have nothing to hide, why are you not transparent ?

 

29 minutes ago, Plaasjapie said:

I'll say this again,  2 essential questions battery system manufacturers should be able to answer to consumers is :

1 : Who manufacture the cells used inside the battery, is it new Grade A cells,  and how many are there inside ?

2: Who manufacture the BMS used to protect the cells inside the battery ?

If they don't want to answer these 2 essential questions, then run away !

( Long term testing done in Australia has shown that most battery system failures are due to BMS faults or failures ...) 

Even the LiFePO4 batteries sold on the PowerForum store they won't give me those 2 essential answers.  If you are proud of what you are selling, and have nothing to hide, why are you not transparent ?

 

I'm not sure that we can reasonably expect a definite answer, certainly to the first. A more reasonable answer is "We buy cells that conform to [some standard]". That allows storage manufacturers to switch providers as long as the cells they buy meet a certain standard.  Or to put out a tender saying that they're interested in buying 50k cells that perform as follows...

This is not to say that there are not problems with variable supply. There are really only two ways that you buy for components.
1) Price
2) Specification

Generally the people bidding for your business will build down to (1) and up to (2), and the good brands will try to go for (2) and not worry so much about (1).

The guys who installed my system tell me that there are certain brands they just won't deal with any more. Because you buy two of what are supposed to be the same thing but the cells have different characteristics, and/or whilst everything looks the same on the outside of the battery, the BMS are slightly (or a lot) different, and so the two don't co-exist very happily.

Also your questions presume that the manufacturers of the cells or the BMS have consistent QC. This may or may not be the case.

Pity the poor layperson like me who doesn't know anything at all about batteries when they lay their money down, but is going to find out eventually.

8 minutes ago, Bobster. said:

I'm not sure that we can reasonably expect a definite answer, certainly to the first.

I strongly disagree.  What is a brand essentially ?  It's trust in the quality and history of performance and customer service in the long run of a company's products.

If I buy a Mercedes Benz car, what am I buying ?  Do I buy "some" engine that conforms to a certain standard, or do I buy the full backing and support and quality history of a company that stands by it's name, and has a reputation and brand value to protect ?

There are many dubious new battery names in this SA market, and most times unsuspecting customers don't even know if there are new first Grade or Grade A cells inside or how many of them inside, never mind who made them !  

This is shady marketing.  If customers and the public are to be able to fairly judge and compare the different batteries on the market, then they must be able to know, exactly, what's all inside... to make an informed decision. 

It means nothing if someone posts that they have used x battery for couple weeks or months without "problems".  On the other hand, if they tell me their battery has, for example,  16 CATL cells inside,   with a proper  respectable BMS, then it's a different story where I as consumer can research the long term history of it's components' performance.

these hoselect 48v batteries are in fact 13 cell NMC chemistry and not lifepo4 as stated in the manuals, thus 4.2v per cell is fine(its in the high knee of the voltage spectrum but it is the "factory settings") to double their lifespan  only charge them up to 4.10v and discharge to 3.4v

I just discovered today these white Hoselect wall mount batterys ar not Lifepo4 cells. There is 13 cells of LCO in series and charge up.to 4.3v per cell. making it of the lithuim ion cobolt high voltage version. So charging at 4.3v per cell x 13 = 56V same as most 51.2 volt lifepo4 16S batteries. Concern now is fire risk on these LCO batteries vs Lifepo4 batteries.

Feel safer with the Lifepo4 and the lifepo4 expected cycles are greater than that of LCO