Community Forums

Budreau · 02-13-2022, 03:22 PM

I have had this inverter/charger paired with my 4 battleborn batteries and has worked great for a few years. Had the RV at the body repair shop for a couple months and when it came back, it has been acting up. I learned the chassis batteries died and the shop was using a jumper cables to jump it from the house bank.

Now, the inverter will not turn on when working off the batteries. When I plug in to shore power it comes alive, but when I unplug, it may or may not begin inverting from the batteries. It will either be fine or no lights or anything.

When I connect a battery directly to the inverter, it turns on immediately. So it seems like something on the RV side, not the inverter side.

Any advice would be appreciated.

jerichorick · 02-13-2022, 05:00 PM

Quote:

Originally Posted by Budreau

I have had this inverter/charger paired with my 4 battleborn batteries and has worked great for a few years. Had the RV at the body repair shop for a couple months and when it came back, it has been acting up. I learned the chassis batteries died and the shop was using a jumper cables to jump it from the house bank.

Now, the inverter will not turn on when working off the batteries. When I plug in to shore power it comes alive, but when I unplug, it may or may not begin inverting from the batteries. It will either be fine or no lights or anything.

When I connect a battery directly to the inverter, it turns on immediately. So it seems like something on the RV side, not the inverter side.

Any advice would be appreciated.

Go back to the shop. They didn't connect something correctly like a ground.

Biljol · 02-13-2022, 06:27 PM

First off where they using the house battle born battery’s to start the RV?

If so they could have permanently damaged the lithiums, lithium chemistry is not appropriate for starting battery’s.

What voltage are you getting from the house side at the battery’s?

What voltage at the inverter from the house battery lines?

They could have blown the fuse from the lithium to the inverter by pulling over 300? Amps you would need to look for that.

The big — big deal is they should have never used lithium batteries to start the rv, now if all they did was charge the chassis battery’s then disconnect the lithium then then start the coach then that would be ok.

There should also be a battery cut off switch. What is it’s status?

Budreau · 02-13-2022, 08:18 PM

Quote:

Originally Posted by Biljol

First off where they using the house battle born battery’s to start the RV?

If so they could have permanently damaged the lithiums, lithium chemistry is not appropriate for starting battery’s.

What voltage are you getting from the house side at the battery’s?

What voltage at the inverter from the house battery lines?

They could have blown the fuse from the lithium to the inverter by pulling over 300? Amps you would need to look for that.

The big — big deal is they should have never used lithium batteries to start the rv, now if all they did was charge the chassis battery’s then disconnect the lithium then then start the coach then that would be ok.

There should also be a battery cut off switch. What is it’s status?

My voltage at the battery is 13.29 and at the inverter posts is 12.35.

I agree with the danger of jumping the chassis batteries with my lithiums, I was beyond angry about it. It seems my chassis batteries were toast and would not even hold a charge. After I got it back, I removed all my lithiums and charged them independently to make sure they were all charged up.

The battery cut off switch I have is on the panel inside. I now have a physical cutoff switch to hook up to the battery bank, which I will do this week.

2004 Itasca Horizon 40KD

HarryStone · 02-14-2022, 09:25 AM

Quote:

Originally Posted by Biljol

First off where they using the house battle born battery’s to start the RV?

If so they could have permanently damaged the lithiums, lithium chemistry is not appropriate for starting battery’s.

What voltage are you getting from the house side at the battery’s?

What voltage at the inverter from the house battery lines?

They could have blown the fuse from the lithium to the inverter by pulling over 300? Amps you would need to look for that.

The big — big deal is they should have never used lithium batteries to start the rv, now if all they did was charge the chassis battery’s then disconnect the lithium then then start the coach then that would be ok.

There should also be a battery cut off switch. What is it’s status?

If that's the case, then those lithium starter packs would be worthless, wouldn't they? I wouldn't use lithium house batteries to start the engine all the time, but I don't believe it will damage them to do it on occasion.

Biljol · 02-14-2022, 06:47 PM

The starter packs have logic in them they actually don’t start the car they charge a dead battery that then starts the car.

Almost all the units instructions will say connect press button wait … when light come on try to start.

What those units are doing is dumping amps into the cars battery. They have you connect to the battery’s poss and neg not to the battery’s poss and the car ground, reason is they are charging the the battery not jump starting the car.

Most of those units will tell you in the instructions they will not work if your cars battery is bad and will not hold a charge at all.

Biljol · 02-14-2022, 06:49 PM

Quote:

Originally Posted by Budreau

My voltage at the battery is 13.29 and at the inverter posts is 12.35.

I agree with the danger of jumping the chassis batteries with my lithiums, I was beyond angry about it. It seems my chassis batteries were toast and would not even hold a charge. After I got it back, I removed all my lithiums and charged them independently to make sure they were all charged up.

The battery cut off switch I have is on the panel inside. I now have a physical cutoff switch to hook up to the battery bank, which I will do this week.

2004 Itasca Horizon 40KD

What the voltage cutoff set to on the inverter may have been reset with all the power on and off that voltage drop seems a bit high from the battery’s to the inverter also,

HarryStone · 02-14-2022, 09:54 PM

Quote:

Originally Posted by Biljol

The starter packs have logic in them they actually don’t start the car they charge a dead battery that then starts the car.

Almost all the units instructions will say connect press button wait … when light come on try to start.

What those units are doing is dumping amps into the cars battery. They have you connect to the battery’s poss and neg not to the battery’s poss and the car ground, reason is they are charging the the battery not jump starting the car.

Most of those units will tell you in the instructions they will not work if your cars battery is bad and will not hold a charge at all.

I've had several Lithium jump packs, and those instructions were not in mine. I have one now that has a bypass button, if the charge in the vehicle battery is too low to register, push the button and start the vehicle. It works too.

Biljol · 02-16-2022, 05:40 AM

Quote:

Originally Posted by HarryStone

I've had several Lithium jump packs, and those instructions were not in mine. I have one now that has a bypass button, if the charge in the vehicle battery is too low to register, push the button and start the vehicle. It works too.

Not saying it will not work but it will reduce the life of the unit.

DeWat · 02-19-2022, 04:44 AM

Quote:

Originally Posted by Budreau

I have had this inverter/charger paired with my 4 battleborn batteries and has worked great for a few years. Had the RV at the body repair shop for a couple months and when it came back, it has been acting up. I learned the chassis batteries died and the shop was using a jumper cables to jump it from the house bank.

Now, the inverter will not turn on when working off the batteries. When I plug in to shore power it comes alive, but when I unplug, it may or may not begin inverting from the batteries. It will either be fine or no lights or anything.

When I connect a battery directly to the inverter, it turns on immediately. So it seems like something on the RV side, not the inverter side.

Any advice would be appreciated.

Was any welding involved? If so, did they disconnect the batteries?