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De-winterization battery hook up?

Midnight Rider

Prominent Member
I have A 295MK with two batteries. Is there a certain order I should re-hook up the wires in to as not damage batteries or not get shocked?
this is for when we head out in spring! Is it red then black or black then red or does it matter? Thanks In advance
 

BryanValRox

Elite Member
I have A 295MK with two batteries. Is there a certain order I should re-hook up the wires in to as not damage batteries or not get shocked?
this is for when we head out in spring! Is it red then black or black then red or does it matter? Thanks In advance
Generally speaking, the standard is,
When hooking up, red first, black second.
When unhooking, black first, red second.
As a safety precaution, safety glasses or better yet a face shield should be warn, in case the unexpected happens.
 

Midnight Rider

Prominent Member
Generally speaking, the standard is,
When hooking up, red first, black second.
When unhooking, black first, red second.
As a safety precaution, safety glasses or better yet a face shield should be warn, in case the unexpected happens.
There are two Batteries?
So Red and Red on both, then black on both?
Or is it just do one battery at a time?
 

sheath

Member
Are both batteries 12V or are they 6V deep cycle? Mine are deep cycle 6V, wired in series to produce 12V. So make sure the disconnect switch is in off position, then connect red wire from rv to one battery, connect the black (negative) connector from same battery to red (positive) of the second battery. Then connect the black rv wire to the negative post of the second battery. Finally turn the disconnect switch back to on.
If they are both 12V then check the switch is off. Connect the red wire to one battery positive post and the two battery positive post together. Then do the same with the black rv wire and both negative posts of the two batteries and then turn the switch back on. Not using the switch can blow the fuses in the inverter.
 

Midnight Rider

Prominent Member
Are both batteries 12V or are they 6V deep cycle? Mine are deep cycle 6V, wired in series to produce 12V. So make sure the disconnect switch is in off position, then connect red wire from rv to one battery, connect the black (negative) connector from same battery to red (positive) of the second battery. Then connect the black rv wire to the negative post of the second battery. Finally turn the disconnect switch back to on.
If they are both 12V then check the switch is off. Connect the red wire to one battery positive post and the two battery positive post together. Then do the same with the black rv wire and both negative posts of the two batteries and then turn the switch back on. Not using the switch can blow the fuses in the inverter.
These are pics of the batterys.
Believe they are 12 volt?
What say yee?
 

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JWalker

Well-known member
When I reinstall the two batteries into the trailer. I tie both batteries together in parallel. Make sure power disconnect switch was turned to off. I would then attached the red cable to the positive of the first battery. Then connect the black cable to the negative of the other battery. Then turn my disconnect switch to on. Not sure if that is right or wrong?? But it is always worked.

I also make it a point to have both batteries charged fully prior to reinstalling them in the spring.
 

sheath

Member
Yes. I looked up the batteries you ( Midnight Rider) shows here. These are nice 12V interstate batteries, so parallel is correct. The Step by step you follow are the same as normally do.
We had just bought our new alliance this year, and when I went to winterize it I noticed that the batteries were routed in series , so I was a bit surprised.
 

Oregon_Camper

Forum Admin
Staff member
We had just bought our new alliance this year, and when I went to winterize it I noticed that the batteries were routed in series , so I was a bit surprised.
Unless they are 2x6v batteries, I can't see them being series. Nothing would have worked correctly (without a seperate voltage converter), as you would have been outputing 24 volts from 2x12 volt batteries in series. Final note...batteries are installed at the dealer, unless you order the "Super Solar" Package.
 

Lantley

Prominent Member
I think at one time 6 volts was the way to go because the plates were thicker vs. 12 volt.
6 volts were designed for golf cart use and in the end they were simply a better more robust battery at a decent price.
With the coming of Lithium batteries I'm not so sure the 6 volt advantage exist anymore.
Nevertheless I'm sure there are some veteran RV'ers that still prefer 6 volt.
 

sheath

Member
Well my RV came with 6V and Alliance solar

I would have probably went with 12V. However, the main advantage of a 6v deep cycle battery is its ability to provide a higher amp-hour capacity compared to a 12v battery, meaning it can deliver more power for a longer duration, making it ideal for applications like RVs where extended power usage is needed; additionally, 6v batteries are often considered more durable and can handle deeper discharges with a longer lifespan when compared to 12v batteries.
 

Oregon_Camper

Forum Admin
Staff member
Well my RV came with 6V and Alliance solar

I would have probably went with 12V. However, the main advantage of a 6v deep cycle battery is its ability to provide a higher amp-hour capacity compared to a 12v battery, meaning it can deliver more power for a longer duration, making it ideal for applications like RVs where extended power usage is needed; additionally, 6v batteries are often considered more durable and can handle deeper discharges with a longer lifespan when compared to 12v batteries.
Going with 6 volt will require 4 batteries to double the amp hours for the 12v system in our RV's. I can (and have) run 2 AC units off our 3x270 amp hour Battle Born Batteries. I loved my 4 Trojan 6v batteries about 10 years ago, but the with the power and 1/4 of the weight, today's lithium batteries are the best solution in RV's today.
 

sheath

Member
Going with 6 volt will require 4 batteries to double the amp hours for the 12v system in our RV's. I can (and have) run 2 AC units off our 3x270 amp hour Battle Born Batteries. I loved my 4 Trojan 6v batteries about 10 years ago, but the with the power and 1/4 of the weight, today's lithium batteries are the best solution in RV's today.
Yes, I agree lithium batteries are very nice. When these LA batteries are getting old, I may switch. I don't have any need at this point. I think when comparing 12V to 6V LA batteries head to head, there are advantages to both.
 
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