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06-19-2022, 09:03 PM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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How to check battery water levels
Good afternoon. I have a 2021 Thor Windsport 29M. i could some assistance in checking the water level in the coach batteries.
The way they are installed in the compartment it looks like they need to be removed to check them. Any thoughts on how to do it without removal would be greatly appreciated.
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06-19-2022, 09:30 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 37.1
State: California
Posts: 2,460
THOR #12698
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I installed the Flow Rite Battery Hydration System on my batteries. It makes it so easy to keep the batteries topped off. No more having to remove the caps to fill the battery cells. It is available on Amazon. You will need to make sure if you order one to get the correct system for the battery(s) you have in your coach. You also have to buy the hand pump bulb to fill the batteries. They make a single 12 volt system, dual 12 volt battery system, single or dual 6 volt battery system. The system also helps to eliminate the gassing that occurs with lead acid batteries.
Flowrite MP2000 battery system runs less than $60.00 on Amazon plus the hand pump.
Paul
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06-19-2022, 09:54 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 2,672
THOR #11781
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I replaced the lead acid batteries in my 29M with AGMs. No more water, no more corrosion from off gassing. It's a cleaner, maintenance free installation.
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Lt Keefer
2018 Hurricane 29M
CHF, Saf-T-Plus, SumoSprings
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06-19-2022, 10:14 PM
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#4
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,116
THOR #7035
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Quote:
Originally Posted by emallett1
Good afternoon. I have a 2021 Thor Windsport 29M. i could some assistance in checking the water level in the coach batteries.
The way they are installed in the compartment it looks like they need to be removed to check them. Any thoughts on how to do it without removal would be greatly appreciated.
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So to answer your question:
If your battery compartment is similar to mine you may have to reposition some battery cables so they are not laying on top of the access caps on the batteries.
Remove the access caps.
Use a mirror and a flashlight to check the water levels.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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06-19-2022, 10:27 PM
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#5
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by paulwadley
I installed the Flow Rite Battery Hydration System on my batteries. It makes it so easy to keep the batteries topped off. No more having to remove the caps to fill the battery cells. It is available on Amazon. You will need to make sure if you order one to get the correct system for the battery(s) you have in your coach. You also have to buy the hand pump bulb to fill the batteries. They make a single 12 volt system, dual 12 volt battery system, single or dual 6 volt battery system. The system also helps to eliminate the gassing that occurs with lead acid batteries.
Flowrite MP2000 battery system runs less than $60.00 on Amazon plus the hand pump.
Paul
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Thank you paulwadley, I will check that out.
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06-19-2022, 10:29 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,759
THOR #13932
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Amazon sells wireless Bluetooth borescopes with an end light for about $18.
With this you can check the chassis battery also.
And inside the black tank
And up your dryer vent at the house....
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06-19-2022, 10:30 PM
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#7
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by Lt Keefer
I replaced the lead acid batteries in my 29M with AGMs. No more water, no more corrosion from off gassing. It's a cleaner, maintenance free installation.
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Lt Keefer , Thank you. When these batteries are no longer working I will do that.
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06-19-2022, 10:33 PM
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#8
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by 16ACE27
So to answer your question:
If your battery compartment is similar to mine you may have to reposition some battery cables so they are not laying on top of the access caps on the batteries.
Remove the access caps.
Use a mirror and a flashlight to check the water levels.
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Thanks for your response, I will see if it is possible to re-route the cables, they are definitely in the way.
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06-19-2022, 10:35 PM
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#9
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by ducksface
Amazon sells wireless Bluetooth borescopes with an end light for about $18.
With this you can check the chassis battery also.
And inside the black tank
And up your dryer vent at the house....
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Thanks duckface. My son in law has one I can try it with.
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06-20-2022, 12:16 AM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 37.1
State: California
Posts: 2,460
THOR #12698
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Before you remove or relocate the battery cables, photo each one so you know where they go. I would also tag/mark them. It is easy to mix them up.
Paul
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06-29-2022, 06:33 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: Windsport 29M
State: New York
Posts: 119
THOR #11919
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Quote:
Originally Posted by emallett1
Good afternoon. I have a 2021 Thor Windsport 29M. i could some assistance in checking the water level in the coach batteries.
The way they are installed in the compartment it looks like they need to be removed to check them. Any thoughts on how to do it without removal would be greatly appreciated.
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I Have a 2018 Windsport 29M. Same situation/problem. Given the cable placement, I found removing them is the only practical option. Even installing the remote fill systems are difficult (impossible?) given the length of the cables, there is no slack and they lay across the top of the batteries. I’ll be going AGM next time.
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06-29-2022, 06:48 PM
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#12
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,157
THOR #6411
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Quote:
Originally Posted by paulwadley
I installed the Flow Rite Battery Hydration System on my batteries. It makes it so easy to keep the batteries topped off. No more having to remove the caps to fill the battery cells. It is available on Amazon. You will need to make sure if you order one to get the correct system for the battery(s) you have in your coach. You also have to buy the hand pump bulb to fill the batteries. They make a single 12 volt system, dual 12 volt battery system, single or dual 6 volt battery system. The system also helps to eliminate the gassing that occurs with lead acid batteries.
Flowrite MP2000 battery system runs less than $60.00 on Amazon plus the hand pump.
Paul
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Another vote for the Flow-Rite battery watering system.. Six years of using with no complaints.
__________________
Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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06-29-2022, 06:49 PM
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#13
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Junior Member
Brand: Thor Motor Coach
State: Arizona
Posts: 6
THOR #25671
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Quote:
Originally Posted by emallett1
Good afternoon. I have a 2021 Thor Windsport 29M. i could some assistance in checking the water level in the coach batteries.
The way they are installed in the compartment it looks like they need to be removed to check them. Any thoughts on how to do it without removal would be greatly appreciated.
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I had the same problem. I installed stainless steel threaded standoffs on each battery terminal to raise the cable. I only had about 3/4” but it was high enough to remove the battery caps. It’s still snug but I don’t have to remove the cables to check or add water. It works great for me.
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06-29-2022, 06:50 PM
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#14
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by Lt Keefer
I replaced the lead acid batteries in my 29M with AGMs. No more water, no more corrosion from off gassing. It's a cleaner, maintenance free installation.
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When batteries are shot, that is what I will do. Thank you!
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06-29-2022, 06:54 PM
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#15
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by paulwadley
Before you remove or relocate the battery cables, photo each one so you know where they go. I would also tag/mark them. It is easy to mix them up.
Paul
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Thanks Paul, that's the first thing I did after seeing the wiring mess! I also used a label maker and marked each wire as to where they go.
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06-29-2022, 06:55 PM
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#16
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Junior Member
Brand: Thor Motor Coach
Model: Windsor 29M
State: Arkansas
Posts: 21
THOR #17511
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Quote:
Originally Posted by budlevey
I had the same problem. I installed stainless steel threaded standoffs on each battery terminal to raise the cable. I only had about 3/4” but it was high enough to remove the battery caps. It’s still snug but I don’t have to remove the cables to check or add water. It works great for me.
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Did you install those on the threaded connections on the top of the batteries?
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06-29-2022, 09:29 PM
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#17
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Member
Brand: Thor Motor Coach
State: Texas
Posts: 38
THOR #21176
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You should also make sure they actually need water. My '21 24.1 came with AGM house batteries from the factory.
__________________
Veteran(USN)/Software Engineer
Adventuring with my wife (RN) and young children
2017 Keystone Outback 293UBH
2021 Axis 24.1/2019 Fusion Hybrid
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06-29-2022, 10:20 PM
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#18
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Junior Member
Brand: Thor Motor Coach
Model: Palazzo 33.2
State: Alberta
Posts: 16
THOR #3333
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Battery Filler
I have a filler that I just put in the top of the battery with the caps off and it stops flowing when it is at the proper level very simple and only cost me a few bucks about 15 years ago. I keep it topped up with distilled water and check the batteries every few months.
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06-30-2022, 12:01 AM
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#19
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Senior Member
Brand: Thor Motor Coach
State: California
Posts: 875
THOR #17478
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I purchased battery caps with floats. All I have to do is look at the level of the float. When needed, I fill using this. It fills each cell perfect every time.
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2013 Thor Palazzo 33.2
2013 Honda CRV
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07-03-2022, 12:53 PM
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#20
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Junior Member
Brand: Thor Motor Coach
State: Arizona
Posts: 6
THOR #25671
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Yes. I also used ss washers to provide additional support for the cable on the top of the stand-off.
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