Have just bought a 2nd hand Burstner motorhome with 2 solar panel with MMPT and 2000w inverter but would toConnecting another 12v battery to my solar

[tankerpaul50]

Have just bought a 2nd hand Burstner motorhome with 2 solar panel with MMPT and 2000w inverter but would toConnecting another 12v battery to my solar system advise please

 

[Lenny HB]

Not very clear what you are asking, are you asking about connecting an additional battery.
For a 2000 watt you are going to need a lot more additional batteries than just one.

 

[tankerpaul50]

At the moment I have 2 solar panels not sure of size of panels 1 2000watts inverter and 1 12v battery but would like to fit another battery but not sure how

 

[Jev88]

Batteries are best when matched size and power and Age! Simply connect POS to POS and Neg to Neg. Connect the inverter to POS on one battery and Neg on the other. 2000W is quite a load on even two batteries. I have Three but only use 1500W Pure Sine inverter.

 

[cyberyacht]

All loads, not just the inverter, should be positive from one battery and negative from the other. Any inverter over 1000W is probably best used with lithium batteries as it will give conventional batteries, even twin or triple bank ones, a real hammering.

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[Jimbohorlicks]

Batteries are best when matched size and power and Age! Simply connect POS to POS and Neg to Neg. Connect the inverter to POS on one battery and Neg on the other. 2000W is quite a load on even two batteries. I have Three but only use 1500W Pure Sine inverter.

It would depend on what load you applied to the Inverter ,not the wattage of the inverter itself.

 

[autorouter]

At the moment I have 2 solar panels not sure of size of panels 1 2000watts inverter and 1 12v battery but would like to fit another battery but not sure how

The power of a solar panel mostly depends on its area. So you could measure the panel size, and compare it with the sizes of panels sold online, to give you a ballpark figure for the panels. If you could read the panel label that would be better, but it's probably inaccessible.

There are different types of lead-acid battery, including flooded with top-up plugs, sealed flooded, AGM and Gel. The label should tell you what type you have, and what its amp-hour (Ah) capacity is. I'm assuming you didn't strike lucky and get a MH with a Lithium battery.

 

[Tombola]

have a quick watch of this.

 

[Jev88]

It would depend on what load you applied to the Inverter ,not the wattage of the inverter itself.

I know what you mean, just trying to point out the limitations.