Hi guys, new to the forum. Big watcher of Wills channel. I purchased the lv2424 and 4-100 watts renogy panels and 3.7kw grade b byd battery bank...last night code 04 came on for low battery. Now this morning the all in one is not even turning on. Display is off and blank....suggestions?
Mpp lv2424 not turning on..
- Thread starter Mirandya
- Start date
The manual says it only needs 17 volts to charge with solar.
How are your 100 watt panels connected?
Are they 2 series 2 parallel or 4 in series?
Disconnect the mains and solar input wires then disconnect the battery wires from the MPP.
Then reconnect the battery wires to the MPP to see if it powers up.
Did you buy it from Ian in Utah?
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You probably dont have breakers on the solar panel wires so dont shock yourself when you disconnect the wires.
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2 100 watt panels in series is 43 Volts open circuit and about 36 volts maximum production. 24 volts only refers to the battery voltage.
You probably dont have breakers on the solar panel wires so dont shock yourself when you disconnect the wires.
OH NO! Here we go again Lol.
What is the voltage at the MPP from the battery. With the BYD turned on?
What is the voltage at the MPP from the battery. With the BYD turned on?
Good question and hopefully they have a multimeter but it has been working ok since May. And its a 24 volt battery.
Cool on the breakers as that will make it easy.
Nope, 12 volt panels are not 12 volts.
Look at the 100 watt panels spec label on the back or online.
12V 100 watt panels are 21.x Volts open circuit and about 18 volts working voltage.
Do you have the paper manual?
Do you have a multimeter?
Read the voltage on the MPP wire connections from the battery.
Should be 23.5 Volts.
Your LV2424 has been running for over a month with no problems right?
If you are in the US and bought from Ian in Utah instead of from Taiwan you could be talking to an expert on the phone instead of posting to a noob like me. Lol
Cheaper too.
I just got the little MPP 12 volt 1000 watt AIO from Ian but have not run it coz UPS lost my battery cables.
When you first turned it on in May did you change the MPP settings for that BYD battery that is LIfePO4 right?
Hopefully someone here can help you out.
I dont think 23.5 volts is low voltage for your battery?
Bob142
Build more, learn more.
I believe he's referring to the Tragic Ballad of randerson...
Maybe @erik.calco or @Mac6792 can provide some insight. They've been running LV2424s for a while.
The screen only turns on if the inverter is on or its using solar/utility (gen) for charging. I wonder if you hit the battery BMS low voltage cutoff and it disconnected the battery. The mpp program low voltage cut off should be set higher than the bms.
Perhaps you have to reset the BMS? Like the above post mention, you should check to see if there is bat voltage at the cable ends that connect to the mpp
Perhaps you have to reset the BMS? Like the above post mention, you should check to see if there is bat voltage at the cable ends that connect to the mpp
erik.calco
Solar Badger
It can only be powered on by the batteries, not by AC and not by solar. So, if your battery bank voltage is too low it won't power on. You have to find another way to raise your battery voltage.
I've had this happen twice. I disconnect my bank from my inverter via a circuit breaker, reset any of my 12V batteries that require it if the BMS cut off, then use my 12V AC charger to pick up the ones that bottomed out. Once I get them high enough, I reconnect my LV2424. It then powers on. I can then complete charging with PV or AC through the LV2424 at 24V.
If for some reason you have 24V batteries instead of 12V batteries in series, you'll need a 24V charger.
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She has a 24 volt BYD so she must have set the LVD at 23.5 volts.
Thats 2.937 volt per 8 cells.
Wouldn't a lower disconnect be better?
And to have the mains charger connected to keep the LVD from cutting off.
I doubt if she has a 24 volt charger.
I am no expert on these units especially 24 volt units.
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