• Have you tried out dark mode?! Scroll to the bottom of any page to find a sun or moon icon to turn dark mode on or off!

diy solar

diy solar

Renogy Scum!!!!!

U

Urge38

New Member
Joined
Mar 18, 2023
Messages
278
Location
London Uk
Rant but be warned when buying from Renogy

So, I purchased a New LifePo4 50ah battery from Renogy uk (no such thing) through eBay Uk (I live in the Uk)

I charge the battery at home, indoors (warm) via a mains 10a charger (LifePo4) and use the battery for only one cycle per day, maybe four times a week,
I had the battery four months when I noticed a lack of capacity.

So, I did a capacity test, wait for it !!!!! drum roll!!!!! 55% capacity!!!! can't be!!! so ive done the test a few times since,
yep, a 50amp battery is only giving me 27amps after four months.

ok, I thought best I try a new charger, so I bought a Victron charger, still the same, only 27amps from a 50-ah battery

Do you think Renogy wanted to know!!!???

all they want and have done is give me the run around,


please sir, be kind enough to run this test, O and now you have run that test, please sir can you run test again, O please sir, second team is looking into you complaint

Ebay are not interested, my credit card compony are not interested because I purchased it through a platform


SO BUYER BE WARE

Renogy are Scum, and if I had not used eBay, but purchased directly from Renogy, I would have been covered by my credit card company.

Don't make this mistake people
 
Unfortunately, Renogy customer service is poor at the best of times. I watched a video where the 100Ah Pro version failed to stop discharge at 10V and went into low voltage protection and wouldn't wake up. They sent the guy another battery and almost same thing, except this replacement took a charge again. Renogy said it was due to it being discharged at 0.2C during his capacity test 😆 I almost bought one till I saw that video. Close call
 
You just got to laugh or else you cry

mine is steady to around 11.50V then it nose dives to 10v in minuets
 
Urge38 said:
You just got to laugh or else you cry

mine is steady to around 11.50V then it nose dives to 10v in minuets
Click to expand...
That makes sense. 2.875V / cell is all but empty.
Is the battery sealed? Can you see individual cell voltages from the BMS or measure them with a meter? What voltage are you charging to?
I'd bet your cells are way out of balance causing the majority of your issues.
 
Its too bad Renogy cant figure out customer service.

They seem to have a captive audience and manage to sell products at a higher price than others. Then its disappointment from there...

Theyd have one heck of a business if they took half of their advertising budget and put it into product quality control and some educated tech reps to answer the phone.
 
They are known to use BMS that doesn’t balance and slowly becomes unbalanced at the sacrifice of capacity.

I still say a proper test of these economy off the shelf batteries is if the BMS can balance cells. Everyone loves to do tear downs and low temp protection. Balancing is way more important.
 
I watched a you tube video of my exact same battery, some guy had two taken to him to revive, he opened them up and hey presto, unbalanced cells

Is it possible to open it up and either change the bms to a cell balancing bms or simply charge the cells individually
 
my Renogy 3000w inverter has performed flawlessly in the 12 months that i have had it ....
 
Renogy is basically Chins with Lipstick, my very frist batteries were renogy 170ah and they would test to about 115, this is well documented as many other170 ah renogy are acting the same way. So most probably grade B cells.

There are better brands now: Epoch, SFK, SOK, Aolithium, Voltgo, Volithium so yes avoid Renogy.

I do like there inverters & solar chargers though.
 
Urge38 said:
You just got to laugh or else you cry

mine is steady to around 11.50V then it nose dives to 10v in minuets
Click to expand...
that's what I would expect, 12V would be 9ish % capacity and the bottom knee is below that, batteries I wouldn't buy from renogy myself, but I do use their hardware as a normal working guy can't afford Victron. :LOL:
 
sunshine_eggo said:
This thread is about Renogy batteries. All Renogy products work fine until they don't. They're notoriously bad at support and communication.
Click to expand...
The thread was about Renogy being scum ....otherwise it would have been titled Renogy Batteries are Shit .... and you will find that ALL products, irrespective of manufacturer work until they don't......

Can't comment on Renogys support and communication other than what I've read, which does seem to support your experience that it is rather shit ....
 
Urge38 said:
Rant but be warned when buying from Renogy

So, I purchased a New LifePo4 50ah battery from Renogy uk (no such thing) through eBay Uk (I live in the Uk)

I charge the battery at home, indoors (warm) via a mains 10a charger (LifePo4) and use the battery for only one cycle per day, maybe four times a week,
I had the battery four months when I noticed a lack of capacity.

So, I did a capacity test, wait for it !!!!! drum roll!!!!! 55% capacity!!!! can't be!!! so ive done the test a few times since,
yep, a 50amp battery is only giving me 27amps after four months.

ok, I thought best I try a new charger, so I bought a Victron charger, still the same, only 27amps from a 50-ah battery

Do you think Renogy wanted to know!!!???

all they want and have done is give me the run around,


please sir, be kind enough to run this test, O and now you have run that test, please sir can you run test again, O please sir, second team is looking into you complaint

Ebay are not interested, my credit card compony are not interested because I purchased it through a platform


SO BUYER BE WARE

Renogy are Scum, and if I had not used eBay, but purchased directly from Renogy, I would have been covered by my credit card company.

Don't make this mistake people
Click to expand...
It it this one?
 

Attachments

  • _01__95429__29841.jpg
    _01__95429__29841.jpg
    65 KB · Views: 5
Urge38 said:
Rant but be warned when buying from Renogy

So, I purchased a New LifePo4 50ah battery from Renogy uk (no such thing) through eBay Uk (I live in the Uk)

I charge the battery at home, indoors (warm) via a mains 10a charger (LifePo4) and use the battery for only one cycle per day, maybe four times a week,
I had the battery four months when I noticed a lack of capacity.

So, I did a capacity test, wait for it !!!!! drum roll!!!!! 55% capacity!!!! can't be!!! so ive done the test a few times since,
yep, a 50amp battery is only giving me 27amps after four months.

ok, I thought best I try a new charger, so I bought a Victron charger, still the same, only 27amps from a 50-ah battery

Do you think Renogy wanted to know!!!???

all they want and have done is give me the run around,


please sir, be kind enough to run this test, O and now you have run that test, please sir can you run test again, O please sir, second team is looking into you complaint

Ebay are not interested, my credit card compony are not interested because I purchased it through a platform


SO BUYER BE WARE

Renogy are Scum, and if I had not used eBay, but purchased directly from Renogy, I would have been covered by my credit card company.

Don't make this mistake people
Click to expand...

Ya mean the same company that sold me my first new panels 3-4 years ago and when I hooked them up “1/2 “ the mc4 connectors on them crumbled or broke in half in my hands like a potato chip..?

Is that the same company yer talking about..?

Well I understand … cause I trust them about as much as I trust their connectors…

I never even considered wasting my time on a warranty call …..my time hangin on the phone with some clerk trying to tell me I did somthing wrong is worth more than 32 cheap connectors…I just fixed it and moved on…
it’s the way of life nowdays…

Damn cheap stuff is takin over the world……

J.
 
Urge38 said:
mine was a different model, but it seems it doesn't matter what model, they are all toilet
Click to expand...
Would you consider opening it up, even if you had to physically cut it, and balancing the cells? At some point after days of dealing with something, no longer worth my time, they win.

FWIW, I bought some individual 50 ah cells and case and busbars and BMS to build my own, and there was very little cost difference for what I see in the US for the Renogy 50 ah battery and the from China cells, case, BMS, etc. I do know the quality I'm getting from a reputable Chinese dealer.
 
JRH said:
Ya mean the same company that sold me my first new panels 3-4 years ago and when I hooked them up “1/2 “ the mc4 connectors on them crumbled or broke in half in my hands like a potato chip..?
Click to expand...
What’s up with people here having mc4 connectors “crumbling”? (Second thread in a few days mentioning that) I have Renogy panels that are over 15 years old and some that are a year old, and never had a connector break in half, let alone “crumble”. I can’t speak for their batteries, but I have had zero issues with their panels or charge controllers. <shrug>
 
You must log in or register to reply here.

Similar threads

T
Recommend a portable battery with these specific features?
Replies
1
Views
63
BatteryBuff
B
T
Defective BMS?
Replies
17
Views
578
tomb18
T
C
Charging leisure batteries connected to Solar
Replies
1
Views
179
mikefitz
mikefitz
V
Parallel cable lengths overloading one battery?
Replies
12
Views
291
wpns
wpns
J
Renogy Dcc50s failure to charge lifepo4 battery
Replies
12
Views
268
HarryN
H

diy solar

diy solar
Back
Top