inverter running on hi voltage

gpower07

New Member
my inverter is 24V. and today i heard warning sound, and i checked. Hi, 28.1V. what is the max input voltage without the warning?
GIANDEL
3000W pure sin wave . i check the manual it said: do not use it when the battery charging. why?
 
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gnubie

Photon Sorcerer
The manual for it would tell you. 28.1 seems a bit low for 24v. My 2kW Giandel (PS-2000QAR) tops out at 30v. I've had it at 29.2v without it complaining.

They only advise you to not use the inverter when charging due to the possibility of over voltage. If you have lead acid and did equalisation charging you'd be quite a bit beyond 30v.
 

Dzl

Unofficial Forum Librarian
Staff member
Moderator
I wouldn't have thought that voltage would trigger a high voltage warning or cutoff. 28.1 = 3.51 per cell if we are talking about lifepo4 which isn't abnormally high for lifepo4. I'm a dummy when it comes to lead acid so I don't know whether that's outside of the normal range for lead or not.
 

gpower07

New Member
The manual for it would tell you. 28.1 seems a bit low for 24v. My 2kW Giandel (PS-2000QAR) tops out at 30v. I've had it at 29.2v without it complaining.

They only advise you to not use the inverter when charging due to the possibility of over voltage. If you have lead acid and did equalisation charging you'd be quite a bit beyond 30v.
I set bulk charge at 28.8v lithium batteries
 

Dzl

Unofficial Forum Librarian
Staff member
Moderator
Strange. Are you sure the noise you heard was a high voltage alarm?
 

gnubie

Photon Sorcerer
If it's anything like mine it has only one style of beep. Fault. Continuous beep, unit off. It doesn't beep on approaching high voltage, nor high temp nor overload. It's straight into the wall, then beep.
 

gnubie

Photon Sorcerer
The display has a high voltage indicator? Check your battery voltage with a multimeter next time the beep happens. It's possible the inverter is not sensing voltage correctly, its possible your SCC is not doing a good job at voltage regulation during absorption charging etc too.
 

gpower07

New Member
The display has a high voltage indicator? Check your battery voltage with a multimeter next time the beep happens. It's possible the inverter is not sensing voltage correctly, its possible your SCC is not doing a good job at voltage regulation during absorption charging etc too.
I have a victron 150/70 scc. 600$
 

Max Q

Vitamin Naruto
Did this ever get resolved? I have Giandel 24V 3kW inverter and EPEver 40A SCC... same issues. I'm certain it's an issue with the SCC settings. But I go through the menus and everything looks correct. What was your solution?

Edit: Forgot to mention batteries are LFP4
 
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Max Q

Vitamin Naruto
No reply. But I just switched to lipo4 and same situation with high voltage alarm.

Did anyone find a cause and fix?

I fiddled with it, then emailed Giandel. They said not to use the inverter continuously. Kinda pointless since I only bought it to run a dorm fridge in my van. I think I'll just invest in a 12-24v fridge and only use the inverter for single use appliances/as needed. Working on my 2nd rebuild now. Will do more tests and update here if I figure anything out.
 

MisterSandals

Participation Medalist
But I just switched to lipo4 and same situation with high voltage alarm.
Be careful when you are making up words. LiPo is a real battery chemistry (Li lithium Po polymer, the explody kind of lithium) and a higher voltage than LiFePO4 (Li lithium, Fe iron, PO4 phosphate) ... LFP for short. Some devices have options for LiPo, LFP and L-ion and all were different voltages.
 

Urban-offgrid

New Member
Be careful when you are making up words. LiPo is a real battery chemistry (Li lithium Po polymer, the explody kind of lithium) and a higher voltage than LiFePO4 (Li lithium, Fe iron, PO4 phosphate) ... LFP for short. Some devices have options for LiPo, LFP and L-ion and all were different voltages.
Thanks for the correction, LOL.
 
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