finecheek12:
I recently bought an Haier thermocool inverter freezer which is working well while on phcn and inverter but it doesn't cool or freeze on 2.5kva generator. has anyone experience this and how did you solve this?

finecheek12:
I recently bought an Haier thermocool inverter freezer which is working well while on phcn and inverter but it doesn't cool or freeze on 2.5kva generator. has anyone experience this and how did you solve this?

EPOMA:


The Gen is not producing pure sine wave electricity I may think

Intelcorei7:

ojeysky:
A few R3 Basic DIY 6.5k for unit price and 6k for multiple. Can flash with tasmota before shipping for those interested

finecheek12:
I recently bought an Haier thermocool inverter freezer which is working well while on phcn and inverter but it doesn't cool or freeze on 2.5kva generator. has anyone experience this and how did you solve this?

Valto:
for those going for cheap unknown batteries

Valto:
for those going for cheap unknown batteries

dollarnaira:
I visited a client yesterday and right from d staircase I could smell acid from batteries. I quickly ran up to check up the batteries only to find out that all 4 batteries are hot including the cables from solar panels and the bottom part of d cc was a bit hot too.
However, I disconnected one cable from d panels from d cc bc I suspected overcharging.

N.B : A freezer was connected to it during this ordeal.

Inverter is hybrid 2.4kva psw mercury.

Pls wat could b d problem?
Help pls

Valto:
for those going for cheap unknown batteries

mctfopt:


If you have a clamp meter, do check the charging current. Also check for signs of bulge on the battery. Is the battery backup ok after disconnecting charging source?

dollarnaira:
I visited a client yesterday and right from d staircase I could smell acid from batteries. I quickly ran up to check up the batteries only to find out that all 4 batteries are hot including the cables from solar panels and the bottom part of d cc was a bit hot too.
However, I disconnected one cable from d panels from d cc bc I suspected overcharging.

N.B : A freezer was connected to it during this ordeal.

Inverter is hybrid 2.4kva psw mercury.

Pls wat could b d problem?
Help pls

olopan:
Is the charge controller PWM?

Valto:
for those going for cheap unknown batteries

dollarnaira:


Pwm bro

olopan:
Serious matter, I was shocked seeing the battery

But on a second note, I notice it's name plate 65Ah from battery sticker but from this angle looks like a 100Ah battery size

That should have also be a red flag

One needs to be extra careful

@Valto can this picture be reposted?

olopan:
There is a 50/50 chance the CC has had it, so basically end of its service thereby making the pulse modulation to just open and simulate a "solar panel to battery terminal connection"

In simpler terms, the panels were connected directly to the battery terminals, making the batteries to overcharge at higher voltage and causing a boiling of electrolyte.

dollarnaira:


It had bn working fine b4 now not until yesterday. Are u saying d pwm is bad or faulty or not effective?

Valto:
yes, though source is from a Facebook solar group

dollarnaira:


It had bn working fine b4 now not until yesterday. Are u saying d pwm is bad or faulty or not effective?

olopan:
I can't say it's bad or faulty, I was only saying my observation based on your narrative,

But from the attached picture, it appears to work fine

Should incase such scenario repeats itself, best to first check panel voltage and also check voltage at battery terminal on getting to site, should it match then. It's failing during operation and will need to be replaced.

dollarnaira:


Thanks sir
D display seen above is inaccurate as one terminal is already disconnected since yesterday.

dollarnaira:


Phcn was used after disconnecting
No bulge
No clamp meter available right there.

Valto:
for those going for cheap unknown batteries