Hubble Batteries

[Speedster]

Bought a new battery today (3 now in total) , sending in one of my original packs in for repairs, healthy is under 50%. Was a huge grudge purchase to get another hubble, but cheaper to replace my entire stack.

Hey man. That sucks. Are these AM-2 batteries?

There does seem to be more returns on Hubble than most other batteries

 

[semaphore]

Hey man. That sucks. Are these AM-2 batteries?

There does seem to be more returns on Hubble than most other batteries

Yep AM2, but AM5 is also plagued with issues. Such is life, it's just such a ballache taking this **** off the wall.

 

[W@P]

Yep AM2, but AM5 is also plagued with issues. Such is life, it's just such a ballache taking this **** off the wall.

Ja no look. My installer charged me the first time for labor to remove my inverter from the wall, and I took it in for repairs myself. When I had to take in my Hubble AM-2 he took it off the wall and installed it again at no charge.

He does work for me quite frequently so ja.

 

[semaphore]

3rd battery installed, lets see how long this garbage lasts before i need to send it in for repairs.

 

[Speedster]

3rd battery installed, lets see how long this garbage lasts before i need to send it in for repairs.

Strongs. Really hope your issues are sorted now

 

[acp]

Yep AM2, but AM5 is also plagued with issues. Such is life, it's just such a ballache taking this **** off the wall.

Any specifics around the AM5 issues? I'm aware of one, but no more.

Rolled the dice on 3 x AM5's, and so far all solid, but deeply concerned that it might change.

 

[superskully]

So I sent my both my batteries, AM2 in for repairs. I am not an installer, I just told them I am not paying for someone else to do it when I can.
1 battery was 2 yrs and other 1 yr old, both needed cell replacement. Seems to be working fine now, just in time for winter

 

[Fcon_Vpro]

Any specifics around the AM5 issues? I'm aware of one, but no more.

Rolled the dice on 3 x AM5's, and so far all solid, but deeply concerned that it might change.

Why would you roll the dice on a premium costing battery if you are aware there are issues?

 

[acp]

Why would you roll the dice on a premium costing battery if you are aware there are issues?

1) Availability
2) Price

At the time of purchase I could not find any negative feedback on AM5, only AM2.

Those I know with AM2s (9 households) have no issues.

Still trying to establish what the alleged issues with AM5 are.

Any pointers?

 

[Fcon_Vpro]

1) Availability
2) Price

At the time of purchase I could not find any negative feedback on AM5, only AM2.

Those I know with AM2s (9 households) have no issues.

Still trying to establish what the alleged issues with AM5 are.

Any pointers?

Nope, sorry no pointers.
Was just referring to your wording.
I understand the temptation of the am5's, but think there are better value batteries out there like the pyltontecs.

But there is a big user base of hubble and their support seems pretty responsive, so you can always call them for help.

 

[W@P]

So I sent my both my batteries, AM2 in for repairs. I am not an installer, I just told them I am not paying for someone else to do it when I can.
1 battery was 2 yrs and other 1 yr old, both needed cell replacement. Seems to be working fine now, just in time for winter

Ja no look with the amount of AM-2's sold since their introduction to the market you are bound to get some issues. I also took in one AM-2 for a cell replacement. My job card numbers were in the 2000's range. Wonder where they stand now.

Also, I think that many AM-2 owners voiced their opinion online making the known issues pop up a lot more. I am sure the other manufacturers also have their problems.

I had excellent service from Hubble thus far but I would not buy them again if I had the choice.

 

[semaphore]

So it appears the battery that was 47% health upgraded to 98% health after doing a firmware update, its dropped by around 100 mah after 600+ cycles.

 

[TedLasso]

Since I can't seem to find any resource or reference, what is considered best practice when it comes to having cycling battery.

How often (per week/month) should the battery reach 100% for cell balancing or whatever to occur?

Likewise, how often should the battery be taken to say 20% (or lower). Does it actually need to get fully discharged? Currently, my SoC is 40% , and the batteries have probably gone down to maybe 35% once in the last three weeks.

How long should the battery be at 100% for the cell balancing to actually take place? FWIW, I have noticed both my batteries reporting 100% SoC and yet energy goes into them from the Grid or solar until something happens that makes them stop accepting any more energy. Is it during this period, when batteries are at 100% but still accepting energy that the cells are balancing?

Al

 

[Kosmik]

Since I can't seem to find any resource or reference, what is considered best practice when it comes to having cycling battery.

How often (per week/month) should the battery reach 100% for cell balancing or whatever to occur?

Likewise, how often should the battery be taken to say 20% (or lower). Does it actually need to get fully discharged? Currently, my SoC is 40% , and the batteries have probably gone down to maybe 35% once in the last three weeks.

How long should the battery be at 100% for the cell balancing to actually take place? FWIW, I have noticed both my batteries reporting 100% SoC and yet energy goes into them from the Grid or solar until something happens that makes them stop accepting any more energy. Is it during this period, when batteries are at 100% but still accepting energy that the cells are balancing?

Al

At least once every 7days. I did find something once, let me check.

Don't just watch SOC. The damn thing drifts vs battery voltage. A full charge means your battery voltage needs to be around 53.8V The bms only stays kicking in around the 53V mark from what I know.

Use whatever app or monitoring to check what your voltage is at the 100% market.

 

[Kosmik]

Here you go.

MAINTENANCE

The Hubble BMS will protect the battery and lifespan of your battery as best possible. However, it must be noted that proper operation of the battery is recommended, and maintenance functions should be taken to ensure the maximum life of your batteries.

Cell balancing is a very important function of the lifespan of your battery. It is important to ensure the cell balancing functions are properly performed.

The Hubble BMS cell balancer will only activate upon 100% state of charge when the batteries near full charge. Thus, it is critical that a full charge to the batteries are provided at least
once every 5 (five) days, but preferably daily upon a charge cycle.

Enough charge time should be provided to balance the cells until the BMS completely stops taking charge from the inverter. Cell cycle life cannot be guaranteed if balancing is not performed on a regular basis. This is especially important in complete off grid systems where a stable power supply is not available.

Source AM2 Manual attached.

 

[TedLasso]

Thanks Chaps. Looks like I should try to at least charge to 100% every three days and pay attention to the voltage.

Still super confused as to why my new Hubble connected in Parallel to the first is working so much harder than the first. It will use up two cycles while the first one will go through one (according to solar assistant)

Also interesting that while SOC is set to Min 40% across battery pack, battery two goes down to 30% while battery 1 stays at 50%.

Need to check cables and I guess cable lengths perhaps which from memory looked to be identical and same lengths. A certified installer installed the second battery.

In any case, Is this usual that one battery can work harder than the other?

 

[tRoN]

So is it safe to assume Hubble is crap ?

Isn’t @RonSwanson affiliated with them as he used to promote them in another thread

 

[Mzezman]

So is it safe to assume Hubble is crap ?

Isn’t @RonSwanson affiliated with them as he used to promote them in another thread

They are not crap per se, they just had some issues with their firmware which when updated resolves these issues. And it applied mainly to the AM-2 range.

 

[RonSwanson]

So is it safe to assume Hubble is crap ?

Isn’t @RonSwanson affiliated with them as he used to promote them in another thread

It is safe to assume that both you and @The_Traveller inhabit the same cave together.

 

[Kosmik]

So is it safe to assume Hubble is crap ?

Isn’t @RonSwanson affiliated with them as he used to promote them in another thread

They work fine, my charge and discharge rates are good. It ran at max output for my 5KVA for over a hour without any issues. Just this bms and voltage creep is a problem but that's remidied by ensuring the batteries hit proper full charge at least once a week.

I don't know if other batteries can perform at the same levels or have a similar creep issue over time. I have heard that others don't like to be used as hard ( 100A+ discharge rate ).